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        Investigation on quasi-static and dynamic mechanical properties of disc springs considering asymmetric frictional boundary

        Yanfeng Zhou,Dan Wang,Jianyuan He,Weifang Chen,Rupeng Zhu 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.11

        Systematic experimental studies of disc springs are sparse. In this paper, quasistatic and dynamic compression experiments are performed on a single disc spring under both symmetric and asymmetric frictional conditions for different series of disc springs. On this basis, multiple disc springs stacked in parallel are also investigated. The full-range load-displacement curves of disc springs under quasi-static and dynamic compression are obtained and compared with the theoretical values, and the limitations of the existing analytical solutions are pointed out. The analysis revealed that frictional conditions of contact boundaries greatly affect the damping of disc springs. As the compression frequency increases, the damping of the disc spring gradually increases and finally remains stable. When the disc springs are stacked in parallel, the stiffness relationship can be approximated as conforming to the law of parallel connection, but the damping increases significantly due to the introduction of friction between internal contact surfaces.

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