Design and analysis of elevator vertical low frequency vibration isolator
SONG Danlong1, SHI Pu1, DU Chunhua1, LIU Kai1, XIAO Yongheng2
1. College of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China;
2. Hitachi Elevator (China) Co, Ltd, Guangzhou 511430, China
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
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. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(19): 296-302.
[1] 全国电梯标准化技术委员会.电梯技术条件: GB/T 10058-2009 [S]. 北京: 中国标准出版社, 2009.
National Technical Committee of Elevator Standardization. Specification for electric lifts: GB/T 10058-2009 [S]. Beijing: China Standards Press, 2009.
[2] Griffin M J, Erdreich J. Handbook of Human Vibration[M]. Cambridge: Academic Press, 2012.
[3] Technical Committee of Mechanical vibration and shock. Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 1: General requirements: ISO 2631-1-1997 [S]. Geneva: International Organization for Standardization, 1997.
[4] 张柘. 曳引式电梯垂直振动系统分析与减振方法[D]. 天津大学, 2017.
ZHANG T. Vertical vibration system analysis of traction elevator and vibration reduction method [D]. Tianji University, 2017.
[5] 陈宏意. 电梯垂直振动的减振方法探讨[J]. 机械工程师, 2013, (6): 47-48.
CHEN H. Discussion on the reduction method for elevator vertical vibration [J]. Mechanical Engineer, 2013, (6): 47-48.
[6] 林尧，刘艳斌，伍辉，等. 基于VPT高速电梯性能分析及动力学参数优化[J]. 振动.测试与诊断, 2015, 35(1): 150-155.
LIN Y, LIU Y, WU H, et al. Dynamic performance analysis and kinetic parameters optimization of high-speed elevator based on VPT[J]. Journal of Vibration Measurement & Diagnosis, 2015, 35(1): 150-155.
[7] 吴明亮, 赵晨名，张来. 准零刚度振动控制系统的研究进展[J]. 南京理工大学学报, 2021. 45(1): 18-26.
WU M, ZHAO C, ZHANG L. Research progress of quasi-zero stiffness vibration control system[J]. Journal of Nanjing University of Science and Technology, 2021. 45(1): 18-26.
[8] 徐道临，余奇平，周加喜，等. 准零刚度隔振系统跳跃频率区间隔振研究[J]. 中国机械工程,2014,25(2): 230-235.
XU D, YU Q, ZHOU J, et al. Study on vibration attenuation in jumping frequency interval of quasi-zero stiffness vibration isolator [J]. China Mechanical Engineering, 2014,25(2): 230-235.
[9] Lan C, Yang S, Wu Y. Design and experiment of a compact quasi-zero-stiffness isolator capable of a wide range of loads[J]. Journal of Sound and Vibration, 2014, 333(20): 4843-4858.
[10] 彭献，张施详. 一种准零刚度被动隔振系统的非线性共振响应分析[J]. 湖南大学学报(自然科学版), 2011, 38(8): 34-39.
PENG X, ZHANG S. Nonlinear resonance response analysis of a kind of passive isolation system with quasi-zero stiffness [J]. Journal of Hunan University (Natural Sciences), 2011, 38(8): 34-39.
[11] 彭超，龚兴龙，宗路航，等. 新型非线性低频被动隔振系统设计及实验研究[J]. 振动与冲击, 2013, 2(3): 6-11.
PENG C, GONG X, ZONG L, et al. Design and tests for a new type nonlinear low-frequency passive vibration isolation system [J]. Journal of Vibration and Shock, 2013, 2(3):6-11.
[12] 胡光军，周生通，李鸿光. 一种非线性隔振器的静力分析与实验研究[J]. 噪声与振动控制, 2011,31(6): 69-71.
HU G, ZHOU S, LI H. Static analysis and experiment of a nonlinear vibration isolator[J]. Noise and Vibration Control, 2011,31(6):69-71.
[13] 徐道临，成传望，周加喜. 屈曲板型准零刚度隔振器的设计和特性分析[J]. 湖南大学学报(自然科学版), 2014,41(8): 17-22.
XU D, CHENG C, ZHOU J. Design and characteristic analysis of a buckling plate vibration isolator with quasi-zero-stiffness [J]. Journal of Hunan University (Natural Sciences), 2014,41(8): 17-22.
[14] 徐道临，周杰，周加喜，等. 碟形橡胶准零刚度隔振器的设计和特性分析[J]. 湖南大学学报(自然科学版),2015,42(8): 22-28.
XU Daolin, ZHOU Jie, ZHOU Jiaxi, et al. Design and analysis of a disc rubber vibration isolator with quasizero stiffness characteristic[J].Journal of Hunan University(Natural Sciences) ,2015,42(8): 22-28.
[15] Meng L, Sun J, Wu W. Theoretical Design and Characteristics Analysis of a Quasi-Zero Stiffness Isolator Using a Disk Spring as Negative Stiffness Element[J]. Shock and Vibration,2015, 2015:1-19.
[16] Wu W, Chen X, Shan Y. Analysis and experiment of a vibration isolator using a novel magnetic spring with negative stiffness [J]. Journal of Sound and Vibration, 2014,333(13): 2958-2970.
[17] 董光旭，罗亚军，严博，等. 基于正负刚度并联的低频隔振器研究[J]. 航空学报,2016,37(7):2189-2199.
DONG G, LUO Y, YAN B, et al. Study on a low frequency vibration isolator based on combined positive and negative stiffness [J]. Acta Aeronautica et Astronautica Sinica, 2016, 37(7):2189-2199.
[18] 康冰冰，李海军，林学森，等. 可变负载的准零刚度隔振器特性[J]. 振动、测试与诊断, 2020,40(3): 501-506.
KANG B, LI H, LIN X, et al. Analysis of quasi-zero-stiffness vibration isolator with variable load [J]. Journal of Vibration, Measurement & Diagnosis, 2020,40(3):501-506.
[19] 程春，李舜酩，王勇，等. 考虑载荷变化的准零刚度隔振器动态特性[J]. 振动.测试与诊断, 2017,37(4):743-749.
CHEN C, LI S, WANG Y, et al. Dynamic analysis of quasi-zero-stiffness vibration isolator considering load variation [J]. Journal of Vibration, Measurement & Diagnosis, 2017, 37(4):743-749.
