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HEXAPOD [7 records]

Record 1 2011-06-15

English

Subject field(s)
  • Insects, Centipedes, Spiders, and Scorpions
DEF

Having six feet.

French

Domaine(s)
  • Insectes, mille-pattes, araignées et scorpions
DEF

Qui a six pattes.

Spanish

Save record 1

Record 2 2011-06-15

English

Subject field(s)
  • Insects, Centipedes, Spiders, and Scorpions
DEF

A small arthropod animal characterized, in the adult state, by division of the body into head, thorax, and abdomen, three pairs of legs on the thorax, and, usually, two pairs of membranous wings.

French

Domaine(s)
  • Insectes, mille-pattes, araignées et scorpions
DEF

Petit animal invertébré articulé, à six pattes, le plus souvent ailé, respirant par des trachées et subissant des métamorphoses.

Spanish

Campo(s) temático(s)
  • Insectos, ciempiés, arañas y escorpiones
DEF

Componente de la clase Insecta de artrópodos antenados, de respiración traqueal, con el cuerpo dividido en cabeza, tórax y abdomen, y con tres pares de apéndices torácicos.

Save record 2

Record 3 2008-05-28

English

Subject field(s)
  • Machine-Tooling (Metallurgy)
  • Automatic Control (Machine Tools)
DEF

A machine tool with a variable triangulated frame that controls the position of the cutting tool with six degrees of freedom.

OBS

Geodetic Technology trademarked "hexapod" for a Stewart platform in a machine tool context. However, apparently this has not stopped other machine tool manufacturers from using the term. A Free CNC software package, the Enhanced Machine Controller(EMC) [1] is capable of driving a stewart platform using standard G-codes such as used for milling machines, etc.

PHR

Octahedral hexapod.

PHR

Mill hexapod.

French

Domaine(s)
  • Usinage (Métallurgie)
  • Commandes automatiques (Machines-outils)
DEF

L'hexapode est un système à mécanique parallèle permettant la mise en position et le mouvement d'objets dans l'espace suivant les six degrés de liberté.

OBS

Par son architecture originale, ce système est utilisé pour le positionnement de haute précision, la mesure de position ainsi que la génération de mouvements dans le cadre de tests dynamiques. Les hexapodes trouvent leurs applications dans les industries navale, spatiale, aéronautique, automobile, optique, médicale, nucléaire ou électronique. Ces systèmes sont également utilisés par les laboratoires de recherches.

Spanish

Save record 3

Record 4 2008-05-28

English

Subject field(s)
  • Applications of Automation
CONT

A hexapod robot is a mechanical vehicle that walks on six legs. Since a robot can be statically stable on three or more legs, a hexapod robot has a great deal of flexibility in how it can move. If legs become disabled, the robot may still be able to walk. Furthermore, not all of the robot's legs are needed for stability; other legs are free to reach new foot placements or manipulate a payload. Many hexapod robots are biologically inspired by Hexapoda locomotion. Hexapods may be used to test biological theories about insect locomotion, motor control, and neurology.

French

Domaine(s)
  • Automatisation et applications
CONT

Un robot hexapode est un véhicule mécanique dont la locomotion est basé sur trois paires de pattes. L'étude de la marche des insectes est d'un intérêt particulier pour présenter une alternative à l'usage de roues pour la locomotion des robots. Le terme se réfère donc aux robots d'inspiration biologique imitant dans le cas présent les animaux hexapodes tels les insectes. Les robots hexapodes sont considérés plus stables que les robots bipèdes du fait que dans la plupart des cas, les hexapodes sont statiquement stables. De ce fait, ils ne dépendent pas de contrôleurs en temps réel pour rester debout ou pour marcher. Cependant, il a été démontré qu'à grandes vitesses de déplacement, les insectes sont dépendants de facteurs dynamiques.

Spanish

Save record 4

Record 5 2008-05-28

English

Subject field(s)
  • Machine-Tooling (Metallurgy)
  • Automatic Control (Machine Tools)
CONT

The Stewart platform consists of two plates connected by six mobile and extensible legs. The lower or base plate is immobile. The upper or mobile plate has six degrees of freedom, three rotational and three translational. The platform is highly stable and easy to control. The platform’s six legs each have two parts, an upper and a lower leg, with a piston-like cylindrical DoF between each pair of parts. The legs are connected to the base plate and the top plate by universal joints at each end of each leg. (These universals are not just sets of abstract DoFs. Each also contains a spider-like body, while also having two DoFs.) The upper part of each leg can slide into and out of the lower leg, allowing each leg to be varied in length. The position and orientation of the mobile platform (top plate) varies depending on the lengths to which the six legs are separately adjusted. Once the top is connected to the legs, the entire Stewart platform assembly has 36 DoFs. Only six DoFs are independent, the same as the top plate would have if it were disconnected. You can think of these independent DoFs as the six adjustable leg lengths or as equivalent to the six DoFs of the mobile plate.

OBS

Geodetic Technology trademarked "hexapod" for a Stewart platform in a machine tool context. However, apparently this has not stopped other machine tool manufacturers from using the term. A Free CNC software package, the Enhanced Machine Controller(EMC) [1] is capable of driving a stewart platform using standard G-codes such as used for milling machines, etc.

French

Domaine(s)
  • Usinage (Métallurgie)
  • Commandes automatiques (Machines-outils)
CONT

La plateforme de Stewart [...] est un type de robot parallèle constitué de six actionneurs. Elle a six degrés de liberté : les trois coordonnées de translation ainsi que les angles de tangage, roulement et lacet (Angles d'Euler). Les six jambes sont actionnées pour changer de longueur et [faire] varier l'orientation de la plateforme [...]

OBS

Les plateformes de Stewart ont des applications dans la technologie des machine-outils et des grue, la recherche sous-marine, la simulation de vol, les antennes paraboliques, les télescopes et la chirurgie orthopédique.

Spanish

Save record 5

Record 6 2007-07-23

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
DEF

[At the exclusion of the Hexapod], hardware that is permanently on orbit and [that] can be shared by users.

OBS

The Lab Support Equipment (LSE) and Station Support Equipment (SSE) comprise the general-purpose equipment and tool items developed to support ISS [International Space Station] maintenance and payload operations. (The distinction between LSE and SEE related mainly to where the equipment originates from within the ISS Program.) A significant fraction of this equipment exists to support research, and consists of the sorts of basic equipment such as pH meters and microscopes that would be found in typical ground-based research lab.

OBS

laboratory support equipment; LSE: term and abbreviation officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
OBS

équipement de laboratoire permanent; LSE : terme et abréviation uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 6

Record 7 2003-12-08

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

Hexapod is a support facility to be mounted on an EXPA of the ISS. The facility will be used for the Stratospheric Aerosol and Gas Experiment III(SAGE III). The facility has a bottom plate and a top plate. The two plates are connected by 6 linear actuators. Hexapod receives the pointing data from SAGE III and the actual base position from the ISS-EXPA. From this data the HEXAPOD control algorithm calculates the next position for each leg. Each linear actuator is driven by a double winding Brushless DC Motor, while the position is monitored by an incremental encoder. To sustain the launch load a launch support structure has been designed, which is released by dedicated electromechanical devices. Hexapod is controlled by a dedicated electronic unit... which interfaces to the Station via the MIL BUS 1553B.

OBS

Hexapod pointing device : term officially approved by the International Space Station official approval Group(ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
OBS

système de pointage Hexapod : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 7

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