Articles | Volume 11, issue 1
Research article
18 Mar 2020
Research article |  | 18 Mar 2020

A bistable mechanism with linear negative stiffness and large in-plane lateral stiffness: design, modeling and case studies

Zhanfeng Zhou, Yongzhuo Gao, Lining Sun, Wei Dong, and Zhijiang Du

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Cited articles

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Short summary
This paper proposes a novel type of bistable mechanism with linear negative stiffness and large in-plane lateral stiffness. Then, by connecting the negative-stiffness mechanism in parallel with a positive-stiffness mechanism, a novel quasi-zero stiffness compliant mechanism is developed. It has better axial guidance capability and in-plane lateral anti-interference capability compare to the conventional mechanism. Such mechanism can be used as constant-force mechanism and vibration isolator.