电梯垂直低频隔振器设计与分析

宋丹龙1,师朴1,杜春华1,刘凯1,肖永恒2

振动与冲击 ›› 2022, Vol. 41 ›› Issue (19) : 296-302.

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (19) : 296-302.
论文

电梯垂直低频隔振器设计与分析

  • 宋丹龙1,师朴1,杜春华1,刘凯1,肖永恒2
作者信息 +

Design and analysis of elevator vertical low frequency vibration isolator

  • SONG Danlong1, SHI Pu1, DU Chunhua1, LIU Kai1, XIAO Yongheng2
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摘要

针对曳引电梯低频振动难以降低的难题,基于准零刚度原理,采用理论建模、有限元分析相结合的方法分析并研制了屈曲弹簧钢板和圆柱橡胶组合式新型轿底低频隔振器,同时对圆柱橡胶、弹簧钢板及其组合低频隔振器分别进行了静载力学试验以及动态隔振性能试验。研究表明,该新型低频隔振器平衡位置处的平均刚度在20 N/mm以下,电梯轿厢的固有频率降低到1 Hz左右,隔振起始频率降低了81.80%;弹簧钢板的尺寸和屈曲量以及圆柱橡胶的尺寸及其硬度是影响低频隔振器性能的关键参数,通过以上参数的相互匹配,可以提高承载能力和降低组合刚度。该新型低频隔振器在保证静态稳定性的同时,实现了轿厢的低频隔振,提高了电梯乘坐舒适性。
关键词:电梯;低频振动;准零刚度;隔振;传递率

Abstract

In order to solve low frequency vibration of traction elevator, a novel low frequency vibration isolator which consists of buckling steel plate and cylindrical rubber was analyzed and developed by theoretical modeling and finite element analysis based on the principle of quasi-zero stiffness. A series of static and dynamic experiments were conducted for buckling steel plate, cylindrical rubber and low frequency vibration isolator at the same time. The results show that the average stiffness of the new low-frequency vibration isolator at the equilibrium position was below 20 N/mm. The natural frequency of the elevator car was reduced to 1 Hz, and the initial frequency of vibration isolation was reduced by 81.80%. The size and buckling of the spring plate and the size and hardness of the cylindrical rubber were the key parameters which affected the performance of the low-frequency vibration isolator. The novel low frequency vibration isolator not only ensures the static stability, but also realizes low frequency vibration isolation for the elevator car, and improves the riding comfort of the elevator.
Key words: Elevator; low frequency vibration; quasi-zero stiffness; vibration isolation; transmissibility

关键词

电梯 / 低频振动 / 准零刚度 / 隔振 / 传递率

Key words

Elevator / low frequency vibration / quasi-zero stiffness / vibration isolation / transmissibility

引用本文

导出引用
宋丹龙1,师朴1,杜春华1,刘凯1,肖永恒2. 电梯垂直低频隔振器设计与分析[J]. 振动与冲击, 2022, 41(19): 296-302
SONG Danlong1, SHI Pu1, DU Chunhua1, LIU Kai1, XIAO Yongheng2. Design and analysis of elevator vertical low frequency vibration isolator[J]. Journal of Vibration and Shock, 2022, 41(19): 296-302

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