International Standard Serial Number:

ISSN 1001-4551

Sponsor:

Zhejiang University;

Zhejiang Machinery and Electrical Group

Edited by:

Editorial of Journal of Mechanical & Electrical Engineering

Chief Editor:

ZHAO Qun

Vice Chief Editor:

TANG ren-zhong,

LUO Xiang-yang

Tel:

86-571-87041360,87239525

Fax:

86-571-87239571

Add:

No.9 Gaoguannong,Daxue Road,Hangzhou,China

P.C:

310009

E-mail:

meem_contribute@163.com

Influence of crack front grid parameters on stress intensity factor of pulley
Published:2022-06-16 author:WENG Jian-cheng, ZHANG Hao-cheng, DING Xing-bo, et al. Browse: 33 Check PDF documents
Influence of crack front grid parameters on stress intensity factor of pulley


WENG Jian-cheng, ZHANG Hao-cheng, DING Xing-bo, HUANG Yi-jie

(College of Physics and Mechanical and Electrical Engineering, Longyan College, Longyan 364000, China )


Abstract:  Aiming at the optimization to determine the number of meshes on the end face and axial meshes of a threedimensional cracked body, the grid parameters of the crack front of the belt pulley with opening surface crack were studied by orthogonal experiments based on the stress intensity factor theory. Firstly, the orthogonal design theory and the displacement method calculation principle of the stress intensity factor were studied. Secondly, a crack of a certain size was established at the stress concentration position of the spinning pulley and the stress intensity factor of the crack was calculated. Finally, the orthogonal design method was used to design the experimental schemes of different factor levels of the grid around the cracked body. According to the results of the I-type maximum stress intensity factor, the number of grids around the cracked body was studied. The results show that the radial mesh number has the greatest impact on the maximum stress strength factor of belt wheel crack type I, followed by the number of circumferential mesh, and the axial mesh number has the least impat. After orthogonal optimization, as the best grid division scheme for the crack structure: the radial grid number is 8,the number of circumferential grid is 16, and the number of axial grids is 15.

Key words:  belt wheel;threedimensional cracked body; stress strength factor;orthogonal experimental design;mesh number

  • Chinese Core Periodicals
  • Chinese Sci-tech Core Periodicals
  • SA, INSPEC Indexed
  • CSA: T Indexed
  • UPD:Indexed

Copyright 2010 Zhejiang Information Institute of Mechinery Industry All Rights Reserved

Technical Support:Hangzhou Bory science and technology

You are 1895221 visit this site