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Journal of System Simulation

Abstract

Abstract: For the problem of fatigue failure in stator rubber bushing of PDM, which reduces motor efficiency and restricts the rate of penetration, a numerical model of PDM’s stator-rotor is established. The thermal coupling problem of rubber bushing working in a well is analyzed. The displacement, temperature and stress distribution of rubber bushing under different conditions and interferences are calculated. A new harmonic-distance rubber bushing was designed based on the structure of rubber bushing, and a finite element simulation on it is taken. The research indicates that the harmonic-distance rubber bushing not only has the advantage of equal-distance rubber bushing, but also has higher life of fatigue and anti-wear than the equal-distance rubber bushing; the displacement distribution is more uniform than the equal-distance rubber bushing; the new structure can guarantee the stability and efficiency of PDM stator and increase the rate of penetration.

First Page

647

Last Page

653

CLC

TE924

Recommended Citation

Tong Hua, Chen Guoyin, Zhu Xiaohua. Linear Design and Simulation Analysis for Harmonic-distance Rubber Bushing of PDM[J]. Journal of System Simulation, 2018, 30(2): 647-653.

DOI

10.16182/j.issn1004731x.joss.201802034

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