Design and analysis of MR-SRC shock absorber for elevator traction machine vibration reduction

被引：0
|
作者：
Ren Z. [1 ,2 ]
Liu R. [1 ,2 ]
Huang W. [3 ]
Li C. [1 ,2 ]
Shi L. [1 ,2 ]
Xu C. [3 ]
机构：
[1] School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou
[2] Institute of Metal Rubber & Vibration Noise, Fuzhou University, Fuzhou
[3] Fujian Special Equipment Inspection and Research Institute, Fuzhou
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2024年 / 43卷 / 03期
关键词：
elevator traction machine; impact response; metal rubber-silicon rubber composite ( MR-SRC ) shock absorber; modal analysis; numerical simulation;
D O I：
10.13465/j.cnki.jvs.2024.03.035
中图分类号：
学科分类号：
摘要：
Here, aiming at the problem of significant performance degradation caused by environmental factors of polymer damping pads commonly used for vibration reduction in existing traction machines, taking engineering application requirements of elevator traction machine dampers as the guidance, after determining required damping components ' stiffnesses, vacuum infiltration technology was used to fill silicone rubber into metal rubber pores, form a coating, and develop a high-performance metal rubber - silicone rubber continuous interwoven phase composite damping material ( MR- SRC ) vibration damping material for resisting environmental impacts. Then, a finite element numerical model for elevator traction machine based on actual structure was established. Modal analyses were performed for elevator traction machine before and after installing MR-SRC shock absorber to determine natural frequencies and vibration modes of the overall system. Impact response analysis was performed for MR-SRC shock absorber, effects of different MR-SRC materials and impact loads on impact responses were compared to check MR-SRC shock absorber strength. Furthermore, based on the approximate equivalence of MR-SRC, theoretical calculations were performed for impact response of shock absorber system. It was shown that MR-SRC shock absorber with a metal rubber density of 1. 8 g/cm3 has the best damping effect. Finally, the fabricated MR-SRC vibration damper was installed in an actual elevator traction machine, acceleration and velocity changes of the elevator were measured during operation according to requirements of elevator vibration reduction national standard, the relevant characteristic parameters of elevator operation were calculated and checked. The results showed that MR-SRC vibration damper designed here can provide a new approach for safe and reliable operation of elevators. © 2024 Chinese Vibration Engineering Society. All rights reserved.
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页码：295 / 304
页数：9
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