Abstract
A vertical quasi-fixed reference system is constructed using a torsion spring, and the vertical normal mode of a single-stage isolator is successively damped with respect to the quasi-fixed reference system. The experimental result shows that the vertical normal mode was damped from 3×10−8/\(\sqrt {Hz} \) down to 2×10−9/\(\sqrt {Hz} \) without reintroducing the high frequency ground vibration. This agrees well with the theoretical analyses.
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Project supported by the National Natural Science Foundation of China (Grant Nos. 49674246 and 19425008).
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Fan, S., Zhou, Z., Tang, J. et al. Active damping system with respect to quasi-fixed reference. Sci. China Ser. A-Math. 42, 1301–1307 (1999). https://doi.org/10.1007/BF02876031
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DOI: https://doi.org/10.1007/BF02876031