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Mechanical Model’s of Conical Valve’s Spool-Seat Contact Pairs Based on the Hertz Theory

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Abstract:

Conical valve’s spool-seat contact pairs is consisted of two surfaces of different curvature radius, and form closed circular contact line. It can be considered as the model of elastic hemi-space contact by the Hertz Theory. The numerical simulation and experiment show: The model is suitable for the analysis of conical valve’s spool-seat contact pairs. The conical valve’ sealing performance is very credible and its performance is very good. Maximum stress is smaller than allowable stress of the seat’s material. The consistency of experiment and simulation proves the validity and practicability of the hemi-space contact model of the valve’s spool-seat contact pairs.

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Info:

Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

1770-1774

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.1770

Citation:

Cite this paper

Online since:

October 2011

Authors:

Hai Bing Jiang, Jian Ruan, Hui Min Xu, Tao Wang

Keywords:

Conical Valve, Hemi-Space Contact Model, Hertz Theory, Shear Stress, Stress

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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