Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1993-08-18
1995-07-25
Butler, Douglas C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
188378, 188379, 267136, 26714013, 267219, 26714014, F16F 910
Patent
active
054355311
ABSTRACT:
A vibration isolation system comprises four tunable dual-axis hydraulic inertial isolators, an array of accelerometers, and a controller. The controller inputs signals from the accelerometers and outputs signals to tune the isolators to minimize the vibration transmitted from a vibrating body to an isolated body. The isolators are tuned by varying the dimensions of their tuning passages or by application of magnetohydrodynamic force to the liquid within the tuning passages.
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D. R. Halwes, "Total Main Rotor Isolation System" (1981) pp. 4-5.
D. R. Halwes, "Controlling The Dynamic Environment During Noe Flight" (1985) p. 3.
Smith Michael R.
Stamps Frank B.
Bell Helicopter Textron Inc.
Butler Douglas C.
Clayborn William L.
Cone John M.
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