Transactions of Materials and Heat Treatment

Title：Finite element simulation and application on steel wire wound cylinder with equal-shear stress

Authors： Yang Xiaojun Xia Weiming

Unit： Changzhou Liu Guojun Vocational Technology College Jiangsu Xuzhou Forging Machine Group Co. Ltd.

KeyWords： equal shear stress prestress pretension coefficient steel wire winding cylinder tangential stress

ClassificationCode：TH123

year,vol(issue):pagenumber：2020,45(9):201-210

Abstract：

For the thick-walled cylinder, combining with the theory of equal-shear stress steel wire winding, the finite element simulation method of equal-shear stress steel wire winding was presented. Because the steel wire layers were simplified into the multiple equal thickness steps in finite element simulation and actual winding construction, the shear stress in each steel wire step after winding was slightly lower than the theoretical value, and the actual pretension effect was slightly lower than that of the theoretical design. According to the difference value of shear stress for each steel wire step between finite element solution and theoretical solution, the concept of error rate was put forward, and the error compensation measures were given. After error compensation, the finite element solution consisted with the theoretical solution. Furthermore, the significance and value range of pretension coefficient were discussed, and combined with the design of 50 MN pretension steel wire winding hydraulic cylinder, the variation law of initial winding stress with pretension coefficient in the range of minimum and limit pretension coefficients and the variation law of radial and tangential stresses on the inner and outer walls of core cylinder under the pretension and synthetic conditions were studied.

Funds：

杨晓俊（1983-），男，硕士，副教授 E-mail：54866966@qq.com

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