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UNBALANCE MASS [2 records]
Record 1 - internal organization data 2002-08-26
Record 1, English
Record 1, Subject field(s)
- Aircraft Piloting and Navigation
- Navigation Instruments
- Flight Instruments and Equipment (Aeroindustry)
- Launching and Space Maneuvering
Record 1, Main entry term, English
- unbalance
1, record 1, English, unbalance
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
- mass unbalance 2, record 1, English, mass%20unbalance
correct
- imbalance 3, record 1, English, imbalance
correct, noun
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
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. 4, record 1, English, - unbalance
Record number: 1, Textual support number: 1 CONT
Gyro drift is caused by random and fixed torques, such as those resulting from bearing friction or mass unbalance. Mass unbalance results in a torque due to gravity. 5, record 1, English, - unbalance
Record 1, French
Record 1, Domaine(s)
- Pilotage et navigation aérienne
- Instruments de navigation
- Instruments et équipement de bord (Constructions aéronautiques)
- Lancement et manœuvres dans l'espace
Record 1, Main entry term, French
- balourd
1, record 1, French, balourd
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- balourd mécanique 2, record 1, French, balourd%20m%C3%A9canique
masculine noun
- déséquilibre de la masse 3, record 1, French, d%C3%A9s%C3%A9quilibre%20de%20la%20masse
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
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. 4, record 1, French, - balourd
Record number: 1, Textual support number: 1 CONT
Dans un gyroscope intégrateur flottant, un décalage de 2 nm [...] entre le centre de gravité et le centre de poussée d'Archimède produit un balourd suffisant pour créer une dérive de 10 [puissance -2] degrés par heure. 5, record 1, French, - balourd
Record number: 1, Textual support number: 2 CONT
La dérive du gyroscope [...] est causée par des couples [...] fortuits et permanents, tels que ceux résultant de la friction dans les roulements et le déséquilibre de la masse. Le déséquilibre de la masse provoque un couple dû à la gravité. 3, record 1, French, - balourd
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1993-12-02
Record 2, English
Record 2, Subject field(s)
- Acoustics (Physics)
Record 2, Main entry term, English
- unbalance mass
1, record 2, English, unbalance%20mass
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
That mass which is considered to be located at a particular radius such that the product of this mass and its centripetal acceleration is equal to the unbalance force. 1, record 2, English, - unbalance%20mass
Record number: 2, Textual support number: 1 OBS
The centripetal acceleration is the distance between the shaft axis and the unbalance mass multiplied by the square of the angular velocity of the rotor. 1, record 2, English, - unbalance%20mass
Record 2, French
Record 2, Domaine(s)
- Acoustique (Physique)
Record 2, Main entry term, French
- masse du balourd
1, record 2, French, masse%20du%20balourd
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Masse que l'on suppose située dans un domaine déterminé, telle que le produit de la masse du balourd par son accélération centripète soit égal au balourd-force. 1, record 2, French, - masse%20du%20balourd
Record number: 2, Textual support number: 1 OBS
L'accélération centripète est le produit de la distance entre l'axe de l'arbre et la masse du balourd par le carré de la vitesse angulaire du rotor. 1, record 2, French, - masse%20du%20balourd
Record 2, Spanish
Record 2, Textual support, Spanish
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