Modeling of Squeeze-Film Damper Phenomenon
Summary
Squeeze-Film Damper (SFD) effect is a phenomenon that resisting force is generated against a flat plate due to the fluidity and compression of viscous air if the gap distance between vibrating flat plate and fixed flat plate narrows.
In the case of designing MEMS devices as well as improving dynamic performance of them such as sensors and actuators, the application of SFD effect is substantial. The effect is also applicable to control noise and vibration of general machinery.
Squeeze-Film Damper
The fluid structure interaction (FSI) analysis utilizing commercial CAE software applied to the phenomenon to simulate the SFD effect and the method to scrutinize the mechanism is developed.
Vibration Modes vs. Gap
Reference Material
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A numerical study on air squeeze-film damping based on structural-fluid co-simulation technique
SIMULIA Customer Conference Japan 2010 2010-11
