Spiral Groove Gas Face Seal Transient Response Analysis Based on Proper Orthogonal Decomposition Method

doi:10.3901/JME.2017.21.079

Abstract

Abstract: A proper orthogonal decomposition method is applied to transient response analysis of spiral groove mechanical gas seal. Transient responses of gas face seal under a set of specified pressure step is simulated directly as samples by solving transient Reynolds equation and dynamic equation. The reduced-order model is established by basic functions generated from samples by proper orthogonal decomposition. The model can be used for calculating transient response under widespread pressure step. The comparison of results from reduced-order model and direct simulation comes to following conclusions. Error shows a decreasing trend with increasing number of basic functions, and increases as the example calculated differs greatly with samples. Proper orthogonal decomposition method can get result of high accuracy with appropriate sample and enough basis functions, and the speed is higher than direct simulation significantly.

Key words: gas face seal, proper orthogonal decomposition, Reynolds equation, transient response

CLC Number:

TH136

YIN Yuan, HUANG Weifeng, LIU Xiangfeng, HU Songtao, LIU Ying. Spiral Groove Gas Face Seal Transient Response Analysis Based on Proper Orthogonal Decomposition Method[J]. Journal of Mechanical Engineering, 2017, 53(21): 79-85.

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