Vibration absorption characteristics of dynamic vibration absorber with piecewise damping characteristics

被引：0
作者：
Lu X.-L. [1 ]
Xing H.-J. [1 ]
Ruan Z.-Y. [1 ]
机构：
[1] School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang
来源：
Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2024年 / 37卷 / 06期
关键词：
anti-resonance; dynamic vibration absorber; energy equivalence principle; piecewise damping; resonance;
D O I：
10.16385/j.cnki.issn.1004-4523.2024.06.005
中图分类号：
学科分类号：
摘要：
A segmented damping device is designed using a cam mechanism in this study. Based on the traditional Voigt dynamic vi⁃ bration absorber，this device is installed between the main system and subsystem of the dynamic vibration absorber，and the dynam⁃ ic equation of the vibration absorber is established. Using the principle of equivalent damping energy dissipation within one vibration period，the equivalent damping coefficient of the segmented damping device at the same vibration frequency is obtained. The theo⁃ retical solution of a dynamic vibration absorber with piecewise damping characteristic is derived and verified by numerical solution. The vibration absorption characteristics of undamped，traditional linear damping，and dynamic absorber with piecewise damping are compared and analyzed. The results show that the amplitude frequency characteristics of the dynamic vibration absorber with piecewise damping characteristics integrate the characteristics of undamped and traditional linear damping dynamic vibration absorb⁃ ers. This ensures that the amplitude of the main system at the anti-resonance point is very low，and the suppression effect of the res⁃ onance amplitude of the main system is close to that of the traditional linear damping dynamic vibration absorber. © 2024 Nanjing University of Aeronautics an Astronautics. All rights reserved.
引用
收藏
页码：945 / 953
页数：8
相关论文
共 29 条
  • [1] Ormondroyd J, Den Hartog J P., The theory of the dy⁃ namic vibration absorber［J］, Journal of Fluids Engineer⁃ ing, 49-50, 2, (1928)
  • [2] Den Hartog J P., Mechanical Vibrations, pp. 112-132, (1947)
  • [3] Nishihara O, Asami T., Closed-form solutions to the ex⁃ act optimizations of dynamic vibration absorbers（mini⁃ mizations of the maximum amplitude magnification fac⁃ tors）［J］, Journal of Vibration and Acoustics, 124, 4, pp. 576-582, (2002)
  • [4] Nishihara O, Asami T., Closed-form exact solution to H-infinity optimization of dynamic vibration absorber：Ⅱ. development of an algebraic approach and its applica⁃ tion to a standard problem［C］, Proceedings of SPIE-the International Society for Optical Engineering, 3989, pp. 500-511, (2000)
  • [5] Crandall S H, Mark W D., Random Vibration in Me⁃ chanical Systems, (1963)
  • [6] Yamaguchi H., Damping of transient vibration by a dy⁃ namic absorber［J］, Transactions of the Japan Society of Mechanical Engineers, 54, 499, pp. 561-568, (1988)
  • [7] Asami T，, Nishihara O, Baz A M., Analytical solutions to H<sub>∞</sub> and H<sub>2</sub> optimization of dynamic vibration absorb⁃ ers attached to damped linear systems［J］, Journal of Vi⁃ bration and Acoustics, 124, 2, pp. 284-295, (2002)
  • [8] Asami T, Nishihara O., Analytical and experimental evaluation of an air damped dynamic vibration absorber：design optimizations of the three-element type model ［J］, Journal of Vibration and Acoustics, 121, 3, pp. 334-342, (1999)
  • [9] Ren M Z., A variant design of the dynamic vibration ab⁃ sorber［J］, Journal of Sound and Vibration, 245, 4, pp. 762-770, (2001)
  • [10] Liu K F, Liu J., The damped dynamic vibration absorb⁃ ers：revisited and new result［J］, Journal of Sound and Vibration, 284, 3-5, pp. 1181-1189, (2005)
123