Title:
SMART HYBRID DAMPER
Document Type and Number:
WIPO Patent Application WO2002042659
Kind Code:
A3
Abstract:
The smart hybrid damper is an electrodynamic-shock-absorber type extendible and retractable strut. The smart hybrid damper is primarily composed of a disk type of mass for intertial force, a DC motor/generator (brush or brushless) with a resistive load variable circuit for variable damping, and a ball screw. The linear motion of actuator from shock forces or vibrations produces both an inertial force proportional to acceleration and a dissipative force proportional to velocity concurrently. If the resistive load being shunted to the armature lines is infinite, and the damper is extended and retracted, the DC motor/generator is rotated by the ball screw without providing significant resistance while the concurrently rotating disk alone produces a resisting force, and accordingly arrests the shocks and vibrations. If the resistive load is finite, then both the back electromotive force (back e.m.f.) induced by the rotating DC motor/generator shunted to the resistor and the inertial force by the rotating disk dissipate energy on both the extension and retraction of the damper. In this operation, the damper provides a combination of a dissipative force and an inertial force.
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Inventors:
KANG SONG-DOUG (KR)
Application Number:
PCT/KR2001/002043
Publication Date:
August 22, 2002
Filing Date:
November 27, 2001
Export Citation:
Assignee:
KANG SONG-DOUG (KR)
International Classes:
F16F7/00; F16F15/18; (IPC1-7): F16F7/00
Foreign References:
| US5775469A | 1998-07-07 | |||
| US5348124A | 1994-09-20 | |||
| JPH10274281A | 1998-10-13 |
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