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Parametric Model of Elastomeric Bolt Isolators Under Large Deformation
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English
Abstract
In an integrated noise isolation system, both gasket and bolt isolators play an important role in the resultant total load, contact stress, and system static and dynamic stiffness. One standard approach to design is based on using a shape factor in conjunction with a simple stress-strain relation. This approach can produce reasonable results under small deformation. But the deviation is so large that it is not appropriate to use it for reliable designs under large deformation. Experimental approaches and finite element methods are effective at characterizing the load-deflection relationship of bolt isolators under large compressive deformation. In this paper, a parameter study of a sequence of finite element analyses will be presented and a parametric model will be determined based on the FEA results to best represent the isolator load-deflection behavior under large compression. The resulting formula can be used to quickly and accurately determine the isolator static and dynamic stiffness. The parametric model was compared to experimental measurements with very good agreement.
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Hu, Z., Chen, T., and Novak, G., "Parametric Model of Elastomeric Bolt Isolators Under Large Deformation," SAE Technical Paper 970522, 1997, https://doi.org/10.4271/970522.Also In
References
- Zwick James R. Hu Zhi-Quan Novak Gary “A design/analysis method of gasketed bolted joints for noise/vibration control” SAE Paper 952087
- Hu Zhi-Quan Chen T. Y. Novak Gary “A Method for Determining the Load-Deflection of an Elastomeric Gasket” SAE Paper 960217
- Gent, A. N. Lindley, P. B. “The Compression of Bonded Rubber Blocks.” Instn. Mech Engres. Proc. 173 111 122 1959
- Stanton, J. F. Roeder, C. W. “Elastomeric Bearings Design, Construction, and Materials.” National Cooperative Highway Research Program Report 248 1982
- Holownia, B. P. “Compression of Bonded Rubber Blocks.” Journal of Strain Analysis 6 2 1971
- Gent, A. N. “Load-Deflection Relations and Surface Strain Distributions for Flat Rubber Pads.” Rubber Chemical Technology 31 395 414 1958