Calculation method of radial stress and deformation on conic threaded connections with interference fit

2010年第5卷第3期

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《机械工程前沿（英文）》 >> 2010年第5卷第3期 doi: 10.1007/s11465-010-0018-9

Calculation method of radial stress and deformation on conic threaded connections with interference fit

School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China;

发布日期： 2010-09-05

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摘要

This paper presents a calculation method for radial stress distribution and deformation on conic threaded connections with interference fit. Based on elastic mechanics, a new calculation model is established using the thick-walled-cylindrical theory. A sample calculation for API 88.9 mm conic threaded connection indicates that the method proposed in this paper is reasonable, and the finite element analysis (FEA) method is used to validate the proposed method. The results obtained by the proposed method and FEA method are identical. The model offers a new way of calculating the radial stress and deformation on conic thread connections with interference fit.

关键词

conic threaded connections ; interference fit ; radial stress ; deformation ; finite element analysis (FEA)