|Table of Contents|

Theoretical and experimental research of plastoelastic deformationand failure of ball screw under high load condition

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2016年01期
Page:
89-
Research Field:
Publishing date:

Info

Title:
Theoretical and experimental research of plastoelastic deformationand failure of ball screw under high load condition
Author(s):
Zhao Guoping1Fan Yuanxun2Zhang Lizhu2Liu Sheng2Li Liyi1
1.School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China; 2.School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
Keywords:
ball screws contact theory elastic-plastic deformation failure mechanisms high loads
PACS:
TH114
DOI:
-
Abstract:
In order to explore the failure mechanism of ball screws under the high load,according to the characteristics of contact deformation between the ball and the raceway surface in the high load working condition,a linear hardening elastic-plastic deformation analysis model is established.Application of Hertz contact theory derives elastic-plastic deformation of a contact place between the ball and the raceway.A linear strengthening elastic-plastic model is established.The calculation method of the elastic-plastic deformation on contact points of the ball and the raceway is proposed.Through the analyses of the plastic flow of raceway surface and friction characteristics,the failure mode and the failure mechanism of ball screws under the high load condition is obtained.The rationality of theoretical analysis is verified by the experiments.The research results provide a theoretical and experimental basis for the failure mechanisms and designing theory of ball screws under the high load conditions.

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Last Update: 2016-02-29