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GYRO BEARINGS [14 records]
Record 1 - internal organization data 2017-11-16
Record 1, English
Record 1, Subject field(s)
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 1, Main entry term, English
- caged
1, record 1, English, caged
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- cadged 2, record 1, English, cadged
see observation
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Gyro driven instruments should be caged before aerobatics to avoid tumbling the gyros which action can cause damage to the bearings. In addition, of course, the instrument is useless until the gyro is erected again. 3, record 1, English, - caged
Record number: 1, Textual support number: 2 CONT
Gyros that have stops (not many these days and not the case for the gyros in the CJ6) can be damaged by acro when they are running. They should be stopped and preferably caged when doing acro. "Smooth" positive-G acro (no snap or tumbing maneuvers) shouldn’t hurt these gyros if they are powered down even if they are not caged. 4, record 1, English, - caged
Record number: 1, Textual support number: 1 OBS
cadge: Appar. variant of cage. 5, record 1, English, - caged
Record 1, French
Record 1, Domaine(s)
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 1, Main entry term, French
- bloqué
1, record 1, French, bloqu%C3%A9
correct
Record 1, Abbreviations, French
Record 1, Synonyms, French
- cagé 2, record 1, French, cag%C3%A9
avoid, see observation
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les instruments gyroscopiques devraient toujours être bloqués avant d'effectuer des manœuvres acrobatiques et ce, pour éviter le culbutage qui risque d'endommager les coussinets. L'instrument qui subit un culbutage est rendu tout à fait inutilisable et le reste aussi longtemps que le gyroscope n'a pas repris sa position. 3, record 1, French, - bloqu%C3%A9
Record number: 1, Textual support number: 2 CONT
Blocage de l'axe du gyro («cadged»). L'instrument à l'arrêt est «cagé», c'est-à-dire que le carter est bloqué dans la position qu'il occupe en vol rectiligne horizontal, afin d'éviter toute détérioration des paliers des différents axes. 4, record 1, French, - bloqu%C3%A9
Record number: 1, Textual support number: 1 OBS
Même si le terme «cagé» est employé dans le jargon de certains pilotes, il s'agit d'un calque direct de l'anglais qu'il vaut mieux éviter. 5, record 1, French, - bloqu%C3%A9
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2017-11-16
Record 2, English
Record 2, Subject field(s)
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 2, Main entry term, English
- uncaged
1, record 2, English, uncaged
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Gyros that have stops(not many these days and not the case for the gyros in the CJ6) can be damaged by acro [acrobatics] when they are running. They should be stopped and preferably caged when doing acro. "Smooth" positive-G acro(no snap or tumbing maneuvers) shouldn’t hurt these gyros if they are powered down even if they are not caged.... When you subject that spinning gyro to your aircraft's twists and turns during aerobatics you are imparting more force on its bearings than you would were the gyro turned off and not spinning. It is usually bearing wear the trashes a gyro. This problem is especially severe when you are doing advanced aerobatics. It is really hard on the gyro bearings. I would rather have the gyros turned off to make them last longer. That we have caged or uncaged gyros is really irrelevant to the basic physics involved. 1, record 2, English, - uncaged
Record number: 2, Textual support number: 1 OBS
Gyro driven instruments should be caged before aerobatics to avoid tumbling the gyros which action can cause damage to the bearings. In addition, of course, the instrument is useless until the gyro is erected again. 2, record 2, English, - uncaged
Record 2, French
Record 2, Domaine(s)
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 2, Main entry term, French
- non bloqué
1, record 2, French, non%20bloqu%C3%A9
proposal
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
Les instruments gyroscopiques devraient toujours être bloqués avant d'effectuer des manœuvres acrobatiques et ce, pour éviter le culbutage qui risque d'endommager les coussinets. L'instrument qui subit un culbutage est rendu tout à fait inutilisable et le reste aussi longtemps que le gyroscope n'a pas repris sa position. 2, record 2, French, - non%20bloqu%C3%A9
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2017-11-16
Record 3, English
Record 3, Subject field(s)
- Aircraft Piloting and Navigation
- Flight Instruments and Equipment (Aeroindustry)
Record 3, Main entry term, English
- cage
1, record 3, English, cage
correct, verb
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Gyro driven instruments should be caged before aerobatics to avoid tumbling the gyros which action can cause damage to the bearings. In addition, of course, the instrument is useless until the gyro is erected again. 2, record 3, English, - cage
Record 3, French
Record 3, Domaine(s)
- Pilotage et navigation aérienne
- Instruments et équipement de bord (Constructions aéronautiques)
Record 3, Main entry term, French
- bloquer
1, record 3, French, bloquer
correct, officially approved
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Les instruments gyroscopiques devraient toujours être bloqués avant d'effectuer des manœuvres acrobatiques et ce, pour éviter le culbutage qui risque d'endommager les coussinets. L'instrument qui subit un culbutage est rendu tout à fait inutilisable et le reste aussi longtemps que le gyroscope n'a pas repris sa position. 2, record 3, French, - bloquer
Record number: 3, Textual support number: 1 OBS
bloquer : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes. 3, record 3, French, - bloquer
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2017-11-16
Record 4, English
Record 4, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 4, Main entry term, English
- tumbling
1, record 4, English, tumbling
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The loss of reference in a two-degree-of-freedom gyro due to gimbal lock or contact between a gimbal and a mechanical stop. 2, record 4, English, - tumbling
Record number: 4, Textual support number: 1 CONT
Gyro driven instruments should be caged before aerobatics to avoid tumbling the gyros which action can cause damage to the bearings. In addition, of course, the instrument is useless until the gyro is erected again. 3, record 4, English, - tumbling
Record number: 4, Textual support number: 1 OBS
This is not to be confused with "tumbling testing", which is a method of evaluating gyro performance. 2, record 4, English, - tumbling
Record 4, French
Record 4, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 4, Main entry term, French
- culbutage
1, record 4, French, culbutage
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- renversement 2, record 4, French, renversement
correct, masculine noun
- décrochage 3, record 4, French, d%C3%A9crochage
masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Les instruments gyroscopiques devraient toujours être bloqués avant d'effectuer des manœuvres acrobatiques et ce, pour éviter le culbutage qui risque d'endommager les coussinets. L'instrument qui subit un culbutage est rendu tout à fait inutilisable et le reste aussi longtemps que le gyroscope n'a pas repris sa position. 1, record 4, French, - culbutage
Record number: 4, Textual support number: 2 CONT
L'horizon artificiel et le conservateur de cap sont basés sur l'immobilité dans l'espace d'un gyroscope. Du fait qu'un gyroscope résiste au renversement, il fait office de référence stable par rapport à l'horizon réel ou à une direction spécifique. 2, record 4, French, - culbutage
Record number: 4, Textual support number: 1 OBS
Le gyroscope de l'horizon artificiel de la plupart des petits appareils se renverse si le tangage dépasse +/-70 degrés ou si l'angle d'inclinaison latérale dépasse 100 degrés. Si le gyroscope se renverse, les indications qu'il délivre ne sont pas fiables tant qu'il ne s'est pas réaligné, ce qui peut nécessiter plusieurs minutes de vol rectiligne à l'horizontale. Les avions de voltige ou les appareils plus importants sont souvent équipés de gyroscopes fiables jusqu'à 360 degrés de tangage et d'inclinaison latérale. 2, record 4, French, - culbutage
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2017-11-16
Record 5, English
Record 5, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 5, Main entry term, English
- spill proof gyro
1, record 5, English, spill%20proof%20gyro
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- tumbling proof gyro 2, record 5, English, tumbling%20proof%20gyro
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Heading indicators ... incorporate spill proof gyros. Because they have a self erecting mechanism, they remain functional in banks, climbs and glides at angles up to 85°. However, in maneuvers exceeding 85°, they give incorrect readings and must be reset. 1, record 5, English, - spill%20proof%20gyro
Record number: 5, Textual support number: 1 OBS
Gyro driven instruments should be caged before aerobatics to avoid tumbling the gyros which action can cause damage to the bearings. In addition... the instrument is useless until the gyro is erected again. 1, record 5, English, - spill%20proof%20gyro
Record 5, Key term(s)
- spill proof gyroscope
- tumbling proof gyroscope
Record 5, French
Record 5, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 5, Main entry term, French
- gyroscope à l'épreuve du culbutage
1, record 5, French, gyroscope%20%C3%A0%20l%27%C3%A9preuve%20du%20culbutage
correct, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- gyroscope à l'épreuve du renversement 2, record 5, French, gyroscope%20%C3%A0%20l%27%C3%A9preuve%20du%20renversement
masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Les conservateurs de cap [...] sont munis d'un gyroscope à l'épreuve du culbutage. Parce qu'ils ont un mécanisme d'autoredressement, ils fonctionnent dans les virages, montées et descentes pouvant atteindre 85°. Toutefois, dans les manœuvres excédant 85°, ils donneront une fausse lecture et devront être réajustés. 1, record 5, French, - gyroscope%20%C3%A0%20l%27%C3%A9preuve%20du%20culbutage
Record number: 5, Textual support number: 1 OBS
L'horizon artificiel et le conservateur de cap sont basés sur l'immobilité dans l'espace d'un gyroscope. Du fait qu'un gyroscope résiste au renversement, il fait office de référence stable par rapport à l'horizon réel ou à une direction spécifique. 3, record 5, French, - gyroscope%20%C3%A0%20l%27%C3%A9preuve%20du%20culbutage
Record number: 5, Textual support number: 2 OBS
Le gyroscope de l'horizon artificiel de la plupart des petits appareils se renverse si le tangage dépasse +/-70 degrés ou si l'angle d'inclinaison latérale dépasse 100 degrés. Si le gyroscope se renverse, les indications qu'il délivre ne sont pas fiables tant qu'il ne s'est pas réaligné, ce qui peut nécessiter plusieurs minutes de vol rectiligne à l'horizontale. 3, record 5, French, - gyroscope%20%C3%A0%20l%27%C3%A9preuve%20du%20culbutage
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2012-09-06
Record 6, English
Record 6, Subject field(s)
- Bearings and Bearing Systems (Mechanical Components)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 6, Main entry term, English
- gyro bearing
1, record 6, English, gyro%20bearing
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
If there is not enough suction, the gyros will not spin fast enough for reliable operation. If there is too much suction, excessive wear of the gyro bearings will result from the gyros spinning too quickly. 1, record 6, English, - gyro%20bearing
Record number: 6, Textual support number: 1 OBS
Term used in the plural. 2, record 6, English, - gyro%20bearing
Record 6, Key term(s)
- gyro bearings
- gyroscope bearings
- gyroscope bearing
Record 6, French
Record 6, Domaine(s)
- Paliers, coussinets et roulements (Composants mécaniques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 6, Main entry term, French
- palier pour gyroscope
1, record 6, French, palier%20pour%20gyroscope
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- palier d'un gyroscope 2, record 6, French, palier%20d%27un%20gyroscope
correct, masculine noun
- coussinet du gyroscope 3, record 6, French, coussinet%20du%20gyroscope
masculine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Si la succion est insuffisante, les gyroscopes ne tourneront pas assez vite pour donner une indication fiable. Si elle est trop forte, les coussinets du gyroscope s'useront prématurément en raison de la rotation excessive des rotors. 3, record 6, French, - palier%20pour%20gyroscope
Record number: 6, Textual support number: 2 CONT
Calcul de réactions sur des paliers d'un gyroscope. 2, record 6, French, - palier%20pour%20gyroscope
Record number: 6, Textual support number: 1 OBS
[...] par exemple, les applications aérospatiales telles que les gyroscopes possèdent des paliers à corps roulants, des billes, revêtues de carbure de titane (TIC), dans lesquelles une goutte de lubrifiant initialement déposée sur les pistes suffit à la lubrification pour la durée de vie du dispositif, parfois quelques années 4, record 6, French, - palier%20pour%20gyroscope
Record number: 6, Textual support number: 2 OBS
Termes habituellement utilisés au pluriel. 5, record 6, French, - palier%20pour%20gyroscope
Record 6, Key term(s)
- coussinets du gyroscope
- paliers pour gyroscope
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 2003-09-15
Record 7, English
Record 7, Subject field(s)
- Bearings and Bearing Systems (Mechanical Components)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 7, Main entry term, English
- inner race
1, record 7, English, inner%20race
correct, officially approved
Record 7, Abbreviations, English
Record 7, Synonyms, English
- bearing inner race 2, record 7, English, bearing%20inner%20race
correct
- bearing's inner race 3, record 7, English, bearing%27s%20inner%20race
correct
- inner ring 4, record 7, English, inner%20ring
- bearing's inner ring 5, record 7, English, bearing%27s%20inner%20ring
Record 7, Textual support, English
Record number: 7, Textual support number: 1 CONT
The DG [directional gyro] and VG [vertical gyro] are supported on Rotorace bearings... These bearings consist of a bearing within a bearing. The inner race is designed for low friction and is mounted on the trunnions. The intermediate race of the bearing, when rotated, produces a torque upon the gimbal as a result of the bearing friction. 6, record 7, English, - inner%20race
Record number: 7, Textual support number: 1 OBS
inner race: term officialized by the Aeronautical Terminology Standardization Committee (ATSC) - Helicopters. 7, record 7, English, - inner%20race
Record 7, Key term(s)
- bearing inner ring
- inner race of a bearing
Record 7, French
Record 7, Domaine(s)
- Paliers, coussinets et roulements (Composants mécaniques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 7, Main entry term, French
- voie de roulement interne
1, record 7, French, voie%20de%20roulement%20interne
feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
- chemin de roulement intérieur 2, record 7, French, chemin%20de%20roulement%20int%C3%A9rieur
masculine noun, officially approved
- bague intérieure 3, record 7, French, bague%20int%C3%A9rieure
feminine noun, officially approved
- bague intérieure de roulement 4, record 7, French, bague%20int%C3%A9rieure%20de%20roulement
feminine noun
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Le gyroscope directionnel et le gyroscope de verticale sont supportés par des roulements Rotorace [...] Ce genre de roulement comprend en fait un roulement dans un autre. La voie de roulement interne [...] à basse friction est montée sur des tourillons [...]. Lorsqu'elle est en rotation, la voie de roulement intermédiaire impose un couple au cardan [...], à cause de la friction dans le roulement. 1, record 7, French, - voie%20de%20roulement%20interne
Record number: 7, Textual support number: 1 OBS
chemin de roulement intérieur : terme uniformisé par le Comité de terminologie française du Conseil de doctrine et de tactique de l'Armée de terre. 5, record 7, French, - voie%20de%20roulement%20interne
Record number: 7, Textual support number: 2 OBS
bague intérieure : terme uniformisé par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Hélicoptères. 6, record 7, French, - voie%20de%20roulement%20interne
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 2002-07-16
Record 8, English
Record 8, Subject field(s)
- Measuring Instruments (Engineering)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 8, Main entry term, English
- floated gyroscope
1, record 8, English, floated%20gyroscope
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- floated gyro 2, record 8, English, floated%20gyro
correct
- flotation gyroscope 3, record 8, English, flotation%20gyroscope
correct
- floating gyroscope 4, record 8, English, floating%20gyroscope
correct
- mechanically suspended floating gyroscope 5, record 8, English, mechanically%20suspended%20floating%20gyroscope
correct
- liquid-floated gyroscope 6, record 8, English, liquid%2Dfloated%20gyroscope
correct
- floating gyro 7, record 8, English, floating%20gyro
correct
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
A gyroscope in which the rotor is suspended in a liquid. 8, record 8, English, - floated%20gyroscope
Record number: 8, Textual support number: 1 CONT
The first type of gyroscopic instrument to successfully reduce gimbal bearing friction to an acceptable level for precision applications was the floated gyroscope. In this instrument the rotating member is sealed within a hollow cylinder which forms the inner gimbal of the gyro. This is mounted in the gyro case whith a fluid surrounding the cylinder; the density of the fluid is chosen so as to exactly float the cylinder, thus removing the weight of the inner gimbal from the bearings and greatly relieving the bearing frictional load. 2, record 8, English, - floated%20gyroscope
Record number: 8, Textual support number: 2 CONT
The actual gyroscope is floated on a film of liquid, and it is called a floating gyroscope to distinguish it from the pendulous type in which the gyroscope unit is suspended and hangs under gravity. 9, record 8, English, - floated%20gyroscope
Record number: 8, Textual support number: 1 OBS
Floatation. Same as flotation. 10, record 8, English, - floated%20gyroscope
Record 8, Key term(s)
- floating gyro
- floatation gyroscope
- liquid floated gyroscope
- floating type gyroscope
Record 8, French
Record 8, Domaine(s)
- Instruments de mesure (Ingénierie)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 8, Main entry term, French
- gyroscope flottant
1, record 8, French, gyroscope%20flottant
correct, masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
- gyro flottant 2, record 8, French, gyro%20flottant
correct, masculine noun
- gyroscope flotté 3, record 8, French, gyroscope%20flott%C3%A9
avoid, masculine noun
- gyroscope à toupie flottée 3, record 8, French, gyroscope%20%C3%A0%20toupie%20flott%C3%A9e
avoid, masculine noun
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Le gyroscope [...] baigne dans un liquide très visqueux, à une température de l'ordre de 60 à 80 °C, dont le rôle est double : 1- La viscosité importante sert d'amortissement 2- La densité est telle que ce liquide de flottaison donne une poussée d'Archimède qui équilibre le poids apparent. Ce qui réduit les efforts d'appui sur les paliers et donc les couples de frottement. Un tel dispositif porte bien son nom de gyroscope flottant. 4, record 8, French, - gyroscope%20flottant
Record number: 8, Textual support number: 2 CONT
La conservation du moment cinétique a donné lieu aux gyroscopes à toupie flottée, aux gyroscopes à toupie accordée (SEC) et au gyroscope à suspension électrostatique (GSE). Les gyroscopes flottés ont une toupie en flottaison dans un fluide qui compense les pertes par frottements. 3, record 8, French, - gyroscope%20flottant
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 2002-07-05
Record 9, English
Record 9, Subject field(s)
- General Mechanics (Physics)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 9, Main entry term, English
- gyroscopic torque
1, record 9, English, gyroscopic%20torque
correct, officially approved
Record 9, Abbreviations, English
Record 9, Synonyms, English
Record 9, Textual support, English
Record number: 9, Textual support number: 1 CONT
A CMG(control moment gyro) is an actuator consisting of a spinner with a sustained kinetic moment modulus h and one or two motor-driven tilt axes. One-axis CMGs are used to generate very high dynamic moments. The produced gyroscopic torque is proportional to h and to the precession rate(i. e. tilting rate). It is orthogonal to the precession axis and is directly transmitted to the satellite by the tilt motor bearings. 2, record 9, English, - gyroscopic%20torque
Record number: 9, Textual support number: 2 CONT
A novel design for an accelerometer using gyroscopic torque to null a pendulous proof mass is being micromachined. 3, record 9, English, - gyroscopic%20torque
Record number: 9, Textual support number: 1 OBS
gyroscopic torque: term officially approved by the International Civil Aviation Organization (ICAO). 4, record 9, English, - gyroscopic%20torque
Record 9, French
Record 9, Domaine(s)
- Mécanique générale (Physique)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 9, Main entry term, French
- couple gyroscopique
1, record 9, French, couple%20gyroscopique
correct, masculine noun, officially approved
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 CONT
Couple gyroscopique. C'est [...] une conséquence de l'inertie du gyroscope : un gyroscope réagit par un couple chaque fois que l'on veut lui imposer une rotation suivant un axe différent de son axe de rotation propre. Ce couple s'appelle couple gyroscopique et tend en général à faire basculer l'axe du rotor. 2, record 9, French, - couple%20gyroscopique
Record number: 9, Textual support number: 2 CONT
En présence d'un gyroscope on peut considérer ce gyroscope bloqué sur son carter (rotation «oubliée»), à condition de rajouter au moment des forces extérieures un moment supplémentaire, le couple gyroscopique, compensant les effets de la rotation «oubliée». 2, record 9, French, - couple%20gyroscopique
Record number: 9, Textual support number: 1 OBS
couple gyroscopique : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI). 3, record 9, French, - couple%20gyroscopique
Record 9, Spanish
Record 9, Campo(s) temático(s)
- Mecánica general (Física)
- Pilotaje y navegación aérea
- Instrumentos de navegación
- Instrumentos y equipo de vuelo (Industria aeronáutica)
Record 9, Main entry term, Spanish
- par giroscópico
1, record 9, Spanish, par%20girosc%C3%B3pico
correct, masculine noun, officially approved
Record 9, Abbreviations, Spanish
Record 9, Synonyms, Spanish
Record 9, Textual support, Spanish
Record number: 9, Textual support number: 1 OBS
par giroscópico : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI). 2, record 9, Spanish, - par%20girosc%C3%B3pico
Record 10 - internal organization data 2002-01-10
Record 10, English
Record 10, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 10, Main entry term, English
- two-axis CMG
1, record 10, English, two%2Daxis%20CMG
correct
Record 10, Abbreviations, English
Record 10, Synonyms, English
- two-axis control moment gyro 2, record 10, English, two%2Daxis%20control%20moment%20gyro
correct
Record 10, Textual support, English
Record number: 10, Textual support number: 1 CONT
A CMG(control moment gyro) is an actuator consisting of a spinner with a sustained kinetic moment modulus h and one or two motor-driven tilt axes. One-axis CMGs are used to generate very high dynamic moments. The produced gyroscopic torque is proportional to h and to the precession rate(i. e. tilting rate). It is orthogonal to the precession axis and is directly transmitted to the satellite by the tilt motor bearings. Two-axis CMGs are less used and have a limited dynamic moment since the produced gyroscopic torque has to be partially compensated by the tilt motor. 1, record 10, English, - two%2Daxis%20CMG
Record 10, Key term(s)
- 2-axis CMG
- 2-axis control moment gyro
Record 10, French
Record 10, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 10, Main entry term, French
- gyrodyne 2-axes
1, record 10, French, gyrodyne%202%2Daxes
correct, masculine noun
Record 10, Abbreviations, French
Record 10, Synonyms, French
- actionneur gyroscopique 2-axes 2, record 10, French, actionneur%20gyroscopique%202%2Daxes
correct, masculine noun
Record 10, Textual support, French
Record number: 10, Textual support number: 1 CONT
On distingue les gyrodynes 1-axe (une seule vitesse cardan commandée par toupie, en précession) dont le couple moteur est directement transmis au satellite par les bâtis et les gyrodynes 2-axes montés sur un double cardan avec vitesses de précession et nutation commandées. Dans ce cas, l'effet d'amplification de couple --le fait qu'un faible couple autour de l'axe de précession produise un fort couple autour de l'axe perpendiculaire-- est moins important car le moteur de précession autour d'un des axes doit surpasser les couples de précession produits par l'autre. Les études menées au DCSD portent principalement sur les «grappes» : ensemble de gyrodynes 1-axe commandés simultanément. 1, record 10, French, - gyrodyne%202%2Daxes
Record number: 10, Textual support number: 1 OBS
Les gyrodynes : une technologie prometteuse pour la commande d'attitude des satellites. Également appelé actionneur gyroscopique, le gyrodyne est une commande d'attitude utilisant des actionneurs à fort couple dynamique. 3, record 10, French, - gyrodyne%202%2Daxes
Record 10, Key term(s)
- gyrodyne deux-axes
- actionneur gyroscopique deux-axes
Record 10, Spanish
Record 10, Textual support, Spanish
Record 11 - internal organization data 2001-08-30
Record 11, English
Record 11, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Launching and Space Maneuvering
Record 11, Main entry term, English
- unbalanced
1, record 11, English, unbalanced
correct
Record 11, Abbreviations, English
Record 11, Synonyms, English
- unsymmetrical 2, record 11, English, unsymmetrical
Record 11, Textual support, English
Record number: 11, Textual support number: 1 CONT
The vacuum-drive heading indicator is the simplest of many types of gyro-controlled directional indicators designed to provide stable heading reference.... Errors. The chief cause of precession, causing the card to creep or drift, is bearing friction. Normal movement of the gimbal rings produces friction, which is increased if the bearings are worn, dirty, or improperly lubricated. Other sources of precession error include unbalanced gyro components and the effect of the earth's rotation. The latter effect depends upon the position of the instrument in relation to the earth, and is not appreciable unless a flight involves considerable change in latitude. 1, record 11, English, - unbalanced
Record number: 11, Textual support number: 2 CONT
Unsymmetrical gyroscope. 2, record 11, English, - unbalanced
Record number: 11, Textual support number: 1 OBS
mass unbalance: The characteristic of a gyro resulting from lack of coincidence of the center of supporting forces and the center of mass. It gives rise to torques caused by linear accelerations that lead to acceleration-sensitive drift rates. 2, record 11, English, - unbalanced
Record 11, French
Record 11, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Lancement et manœuvres dans l'espace
Record 11, Main entry term, French
- balourdé
1, record 11, French, balourd%C3%A9
correct
Record 11, Abbreviations, French
Record 11, Synonyms, French
- dyssymétrique 2, record 11, French, dyssym%C3%A9trique
Record 11, Textual support, French
Record number: 11, Textual support number: 1 CONT
Garde-cap. Il s'agit d'un gyroscope que l'on maintient horizontal et qui définit une direction fixe dans le plan horizontal à sa dérive près. Le gyroscope est monté à la Cardan comme dans le cas du compas mais il n'est pas balourdé. Un détecteur d'horizon monté sur la caisse de tore délivre un signal proportionnel à l'inclinaison du moment cinétique; ce signal est traité et est envoyé dans un moteur couple d'axe cd qui crée un couple vertical ramenant le moment cinétique horizontal. 3, record 11, French, - balourd%C3%A9
Record number: 11, Textual support number: 2 CONT
Gyroscope balourdé. 4, record 11, French, - balourd%C3%A9
Record number: 11, Textual support number: 1 OBS
balourd : Mauvaise répartition des masses d'une pièce ou d'un ensemble tournant, qui fait que son centre de gravité n'est pas sur l'axe de rotation. 5, record 11, French, - balourd%C3%A9
Record 11, Spanish
Record 11, Textual support, Spanish
Record 12 - internal organization data 2001-08-16
Record 12, English
Record 12, Subject field(s)
- Flight Instruments and Equipment (Aeroindustry)
- Aircraft Piloting and Navigation
- Navigation Instruments
Record 12, Main entry term, English
- caging
1, record 12, English, caging
correct
Record 12, Abbreviations, English
Record 12, Synonyms, English
Record 12, Textual support, English
Record number: 12, Textual support number: 1 DEF
The process of orienting and mechanically locking one or more mechanical gyro axes or gimbal axes to a reference position. 2, record 12, English, - caging
Record number: 12, Textual support number: 1 OBS
Gyro driven instruments should be caged before aerobatics to avoid tumbling the gyros which action can cause damage to the bearings. In addition, of course, the instrument is useless until the gyro is erected again. 3, record 12, English, - caging
Record 12, French
Record 12, Domaine(s)
- Instruments et équipement de bord (Constructions aéronautiques)
- Pilotage et navigation aérienne
- Instruments de navigation
Record 12, Main entry term, French
- blocage
1, record 12, French, blocage
correct, masculine noun
Record 12, Abbreviations, French
Record 12, Synonyms, French
Record 12, Textual support, French
Record number: 12, Textual support number: 1 CONT
Blocage de l'axe du gyro («cadged»). L'instrument à l'arrêt est «cagé», c'est-à-dire que le carter est bloqué dans la position qu'il occupe en vol rectiligne horizontal, afin d'éviter toute détérioration des paliers des différents axes. 2, record 12, French, - blocage
Record number: 12, Textual support number: 1 OBS
dispositif de blocage / caging device. 3, record 12, French, - blocage
Record 12, Spanish
Record 12, Textual support, Spanish
Record 13 - internal organization data 2001-08-10
Record 13, English
Record 13, Subject field(s)
- Bearings and Bearing Systems (Mechanical Components)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 13, Main entry term, English
- intermediate race
1, record 13, English, intermediate%20race
correct
Record 13, Abbreviations, English
Record 13, Synonyms, English
Record 13, Textual support, English
Record number: 13, Textual support number: 1 CONT
The DG [directional gyro] and VG [vertical gyro] are supported on Rotorace bearings... These bearings consists of a bearing within a bearing. The inner race is designed for low friction and is mounted on the trunnions. The intermediate race of the bearing, when rotated, produces a torque upon the gimbal as a result of the bearing friction. 1, record 13, English, - intermediate%20race
Record 13, Key term(s)
- intermediate ring
- bearing intermediate race
- bearing intermediate ring
- intermediate race of the bearing
- bearing intermediate race
Record 13, French
Record 13, Domaine(s)
- Paliers, coussinets et roulements (Composants mécaniques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 13, Main entry term, French
- voie de roulement intermédiaire
1, record 13, French, voie%20de%20roulement%20interm%C3%A9diaire
feminine noun
Record 13, Abbreviations, French
Record 13, Synonyms, French
- chemin de roulement intermédiaire 2, record 13, French, chemin%20de%20roulement%20interm%C3%A9diaire
masculine noun
Record 13, Textual support, French
Record number: 13, Textual support number: 1 CONT
Le gyroscope directionnel et le gyroscope de verticale sont supportés par des roulements Rotorace [...] Ce genre de roulement comprend en fait un roulement dans un autre. La voie de roulement interne [...] à basse friction est montée sur des tourillons [...] Lorsqu'elle est en rotation, la voie de roulement intermédiaire impose un couple au cardan [...], à cause de la friction dans le roulement. 1, record 13, French, - voie%20de%20roulement%20interm%C3%A9diaire
Record 13, Spanish
Record 13, Textual support, Spanish
Record 14 - internal organization data 2001-06-21
Record 14, English
Record 14, Subject field(s)
- Bearings and Bearing Systems (Mechanical Components)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
Record 14, Main entry term, English
- gimbal bearing friction
1, record 14, English, gimbal%20bearing%20friction
correct
Record 14, Abbreviations, English
Record 14, Synonyms, English
Record 14, Textual support, English
Record number: 14, Textual support number: 1 CONT
The first type of gyroscopic instrument to successfully reduce gimbal bearing friction to an acceptable level for precision applications was the floated gyroscope. In this instrument the rotating member is sealed within a hollow cylinder which forms the inner gimbal of the gyro. This is mounted in the gyro case with a fluid surrounding the cylinder; the density of the fluid is chosen so as to exactly float the cylinder, thus removing the weight of the inner gimbal from the bearings and greatly relieving the bearing frictional load. 1, record 14, English, - gimbal%20bearing%20friction
Record 14, French
Record 14, Domaine(s)
- Paliers, coussinets et roulements (Composants mécaniques)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
Record 14, Main entry term, French
- frottement des roulements du cardan
1, record 14, French, frottement%20des%20roulements%20du%20cardan
masculine noun
Record 14, Abbreviations, French
Record 14, Synonyms, French
Record 14, Textual support, French
Record number: 14, Textual support number: 1 OBS
L'équilibrage [des roues] est nécessaire pour supprimer les effets d'un balourd de l'ensemble tournant qui peut créer des vibrations. Ne pas équilibrer, c'est s'exposer à : - Une usure prématurée des organes de suspension, de direction, des roulements des cardans, des pneumatiques .. - Un inconfort de conduite à cause des vibrations. 2, record 14, French, - frottement%20des%20roulements%20du%20cardan
Record number: 14, Textual support number: 2 OBS
La première chose à installer, c'est un kit de roulements à billes. Ils remplaceront les bagues en plastique ou en métal rose. Un roulement est composé de deux bagues une intérieure et une extérieure. Elles sont mises en contact par l'intermédiaire de bille en acier trempé, le tout est scellé. Le frottement d'un roulement est quasiment nul et il n'y a pas d'usure. L'installation de roulements est obligatoire avant le remplacement du moteur par un plus puissant. 3, record 14, French, - frottement%20des%20roulements%20du%20cardan
Record 14, Spanish
Record 14, Textual support, Spanish
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