Spacecraft deployment mechanism damper

Details Spacecraft deployment mechanism damper Spacecraft deployment mechanism damper

1997-04-14

1999-07-13

Schwartz, Chris

Brakes

Internal-resistance motion retarder

Magnetic fluid or material

1882671, 188290, 1883225, F16F 600, F16F 912, F16D 5700

Patent

active

059213574

ABSTRACT:
The present invention provides an electrorheological magnetic (ERM) fluid-based rotary motion damper (12). According to the invention, the ERM fluid-based rotary motion damper (12) generally includes an input shaft (18) coupled to a first damping member (16) and rotatably supporting a second damping member (20). A cylinder (28) coupled about the first damping member (16) rotatably engages a housing (36) circumferentially coupled about the second damping member (20). As such, the cylinder (28) is configured for rotary movement relative to the housing (36). ERM fluid (56) disposed in the housing (36) surrounds the cylinder (28) such that it coacts with the housing (36) and cylinder (28). In the presence of a magnetic field, the ERM fluid (56), cylinder (28) and housing (36) frictionally control the rotary movement of the first damping member (16) relative to the second damping member (20).

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