A Study on the Mechanical Properties of Disc Spring Vibration Isolator with Viscous Dampers

Abstract:

In present study, the mechanical properties of disc-spring vibration isolator with viscous dampers is investigated by finite element analysis (FEA) and experiments. The result of FEA and static test reveals that frictional damping has significant effect on the static stiffness of combination vibration isolator, the ability to strengthen loading stiffness and lower unloading stiffness. However viscous damper has no effect on the static mechanical properties. The dynamic experiment shows that the dynamic performance of combination vibration isolator can be greatly improved with viscous dampers. Viscous dampers have little effect on dynamic stiffness of vibration isolator, but significant effect on damping characteristics. These conclusions are of significant importance in the analysis and design of combination disc-spring vibration isolators.

• Periodical: Advanced Materials Research (Volume 904)
• Pages: 454-459
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.904.454
• Online since: March 2014
• Authors: Fang Jia, Fan Cheng Zhang*
• Keywords: Damping, Disc Spring, Stiffness, Vibration Isolator, Viscous Damper

References

[1] Saini P K, Kumar P, Tandon P. Design and analysis of radially tapered disc springs with parabolically varying thickness[J]. Proceedings of the institution of mechanical engineers part c-journal of mechanical engineering science. 2007, 221(2): 151-158.

DOI: 10.1243/0954406jmes114

[2] J. H Luo, H. Q Wang, Y. B He , et al. Experiment and computational studies of damping characteristics of disc springs[J]. Chinese Journal of Mechanical Engineering. 1995(2): 61-63.

[3] L. J Zheng, Z. J An, Y. M Fu, et al. Study on theoretical analysis and numerical simulation of the load in conical disk springs [J]. Mechanical Design and Manufacturing Engineering. 2002(6): 12-13.

[4] Curti G, Montanini R. On the influence of friction in the calculation of conical disk springs[J]. Journal of Mechanical Design. 1999, 121(4): 622-627.

DOI: 10.1115/1.2829508

[5] Ozaki S, Tsuda K, Tominaga J. Analyses of static and dynamic behavior of coned disk springs: Effects of friction boundaries[J]. Thin-Walled Structures. 2012, 59: 132-143.

DOI: 10.1016/j.tws.2012.06.001

[6] S. S Xiong, H. S Li,L. T Huang, et al. Design and application of base isolation system for explosive laboratory[J]. Explosion and Shock Waves. 2006(2): 145-149.

[7] X. S Gong , Z. J Xie, Z. H Luo, et al. The characteristics of a nonlinear damper for vibration isolation[J]. Journal of Vibration Engineering. 2001(3): 90-94.

[8] Peng Z K, Meng G, Lang Z Q, et al. Study of the effects of cubic nonlinear damping on vibration isolations using Harmonic Balance Method[J]. International Journal of Non-linear Mechanics. 2012, 47(10SI): 1073-1080.

DOI: 10.1016/j.ijnonlinmec.2011.09.013

[9] Tan L, Fang B, Qu X, et al. Experiment research and nonlinear analysis to visco-elastic damping structure for whole-spacecraft passive vibration isolation system[C]. International Society for Optics and Photonics, (2011).

DOI: 10.1117/12.880475

[10] X. Z Yi. Analysis of basic characteristic parameters of disk springs [J]. China Petroleum Machinery. 1995, 23(3): 10-17.

[11] P. C Hu, J. G Yang. Experimental research on characteristics of visco-damping spring damper [J]. Journal of Wuhan University of Technology(Transportation Science & Engineering). 2006(6): 1000-1003.

[12] H. S. Chen, Experimental study of nonlinear assembled isolator for high speed press, Southeast University, (2011).