An experimental study on a new air-eddy current damper for application in low-frequency accelerometers

다국어 초록 (Multilingual Abstract)

This paper discusses the new concept of a hybrid damper for application in low-frequency accelerometers. A hybrid damping structureis proposed in which an air damping principle and an eddy current damping principle are integrated into one damping structure. A prototypeof the hybrid damper was fabricated and applied to a low-frequency accelerometer structure. A free-vibration test was conducted onthe accelerometer structure in various damping configurations: air-damped, eddy-current-damped and hybrid-damped. The experimentalresults indicate that the proposed hybrid damper exhibits good damping performance in comparison with single-damped cases while stillmaintaining their original advantages, such as their low cost, simple structure and nonsealing, nonelectric system. The proposed hybriddamping system will be useful for other small machinery devices in real applications.

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