Design of an Improved Nonlinear Disc Spring Vibration Isolator

Abstract:

An improved nonlinear vibration isolator is proposed in this paper. It uses the exact solution derived load-displacement hysteresis curve formula based on energy method to calculate disc spring, combined with the finite element analysis. The static load capacity and dynamic mechanical property of this new type disc spring vibration isolator is validated through the static load tests or fatigue analysis. Compared with the rubber vibration isolator, the conclusion can be found: the new type vibration isolator has wider scope of vibration isolation, and is better in low frequency vibration isolation. These research achievements are of significant importance in the vibration isolation of heavy load and great shock mechanical equipment.

• Periodical: Applied Mechanics and Materials (Volume 835)
• Pages: 643-648
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.835.643
• Online since: May 2016
• Authors: Jia Fang, Huang Dong*
• Keywords: Disc Spring Vibration Isolator, Finite Element Analysis, Functional Test, Nonlinearity

References

[1] Z. T. Liu, Status of national metalforming machinery industry. Forging Equip. Manuf. Tech. 4 (2011) 9-15.

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

[3] J. B. Hunt, J. Nissen, The broadband dynamic vibration absorber. J. Sound Vib. 83(4) (1982) 573-578.

DOI: 10.1016/s0022-460x(82)80108-9

[4] G. Terenzi, Dynamics of SDOF systems with nonlinear viscous damping. J. Eng. Mech. 125(8) (1999) 956-963.

DOI: 10.1061/(asce)0733-9399(1999)125:8(956)

[5] A. Carrella, M. J. Brennan, T. P. Waters, Static analysis of a passive vibration isolator with quasi-zero-stiffness characteristic. J. Sound Vib. 301(3-5) (2007) 678-689.

DOI: 10.1016/j.jsv.2006.10.011

[6] Z. K. Peng, Z. Q. Lang, X. J. Jing, et al. The Transmissibility of Vibration Isolators With a Nonlinear Antisymmetric Damping Characteristic. J. Vib. Acoust. 132(1) (2010) 14501.

DOI: 10.1115/1.4000476

[7] A. Reggio, M. De Angelis, Optimal design of an equipment isolation system with nonlinear hysteretic behaviour. Earthquake Eng. Struct. Dyn. 42(13) (2013) 1907-(1930).

DOI: 10.1002/eqe.2304

[8] W. S. Lu, Computational design and manufacture of disc springs. Fudan University Press. (1990).