面向大振幅低频振动的重力倒摆式准零刚度隔振器研究

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (18) : 205-209.

论文

陈文华，黄伟稀，郝夏影，何涛，梁赟

作者信息 +

On the quasi-zero-stiffness isolator with a gravity inverted pendulum applied in large amplitude low frequency vibration isolation

CHEN Wenhua,HUANG Weixi,HAO Xiaying,HE Tao,LIANG Yun

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文章历史 +

摘要

针对大振幅低频振动控制问题，开展准零刚度隔振器分析研究。以拓宽准零刚度位移区为目标，创新提出重力倒摆式准零刚度结构，相比弹簧式准零刚度结构具有更宽的准零刚度范围，适用于大振幅振动的低频隔振。结合三弹簧式准零刚度结构进行多向隔振器设计，对比两种典型三弹簧式准零刚度特性，分析配置参数对刚度特性的影响。最后通过仿真验证了隔振器的多向隔振有效性，准零刚度结构显著降低了隔振频率，其中重力倒摆结构可降低隔振频率15Hz以上。
关键词：倒摆；准零刚度；大振幅；隔振

Abstract

To reduce large amplitude low frequency vibration, the analysis of quasi-zero-stiffness vibration isolator was carried out. Aiming at widening the quasi-zero-stiffness displacement area, the gravity inverted quasi-zero-stiffness structure was innovatively proposed, compared with the spring type quasi zero-stiffness structure, the wider quasi-zero-stiffness displacement region was obtained, suitable for isolation of low frequency vibration with large amplitude. Combined with the three-spring type quasi-zero-stiffness structure, the multidirectional vibration isolator was designed, the quasi-zero-stiffness characteristics of two typical three-spring type structure were compared, the influence of parameters on stiffness characteristics was analyzed. Finally, the effectiveness of multidirectional vibration isolation was verified by simulation, the quasi-zero-stiffness structure significantly reduces the vibration isolation frequency, the gravity inverted pendulum structure can reduce the vibration isolation frequency above 15Hz.
Key words: inverted pendulum; quasi-zero stiffness; large vibration amplitude; vibration isolation

导出引用

陈文华，黄伟稀，郝夏影，何涛，梁赟. 面向大振幅低频振动的重力倒摆式准零刚度隔振器研究[J]. 振动与冲击, 2022, 41(18): 205-209

CHEN Wenhua,HUANG Weixi,HAO Xiaying,HE Tao,LIANG Yun. On the quasi-zero-stiffness isolator with a gravity inverted pendulum applied in large amplitude low frequency vibration isolation[J]. Journal of Vibration and Shock, 2022, 41(18): 205-209

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