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Structure and Temperature Field Analysis for the Scheme of the Train Wheel Equipped with Buckle

Author: WeiLingYun
Tutor: ZhouTingMei
School: Wuhan University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Finite Element Stress field Temperature field Nonlinear contact analysis Tire retardation
CLC: U262
Type: Master's thesis
Year: 2005
Downloads: 65
Quote: 1
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Abstract

To prevent the locomotive derailment accident caused by the diesel locomotive wheel tire loose , Zhengzhou Railway Bureau locomotive at a machine wheel and Tire Equipped with Buckle program . Machine wheel round of changes in the structure of the wheel will have some impact on the stress distribution in the process of applying state of the lead after the tire Equipped with Buckle , braking due to the friction caused by the high temperature may cause tire retardation. The rim turning , plus the gasket gap the size of the wheel to have an impact , there is no theoretical research . Tire retardation research is of great significance because of the slow economic losses caused by adverse effects and social protection of railway transport safety , the protection of national and personal property security , avoid . Therefore , it is necessary to machine wheels Equipped with Buckle program analysis theory to provide a theoretical basis for the the Machine wheels on the overhaul limits to ensure the safe operation of the railway locomotive . DF _4B -type locomotive , for example , the Zhengzhou Railway Bureau locomotive to the assembled machine wheel tire Equipped with Buckle program , first the program conducted a detailed analysis to establish a related model , the selected structural static analysis in the worst of conditions , the use of large-scale three-dimensional finite element analysis software ANSYS calculation and simulation , simulation analysis concluded that Equipped with Buckle wheel on the overall stress small, and the rim of the S-type shape of the webs made ??certain optimization; Second, for due to the wear of the rim caused by the the retrofitting gasket model , the analysis of the gap size of the gasket on wheel pairs . The final analysis in emergency braking conditions, the size of the wheel on the boundary conditions and friction heat , and established a physical model based on the actual situation , the temperature field analysis to determine the wheel each wheel Equipped with Buckle part of the temperature distribution and thermal stress distribution . The main findings of this paper is : Equipped with Buckle program structure , static analysis and emergency braking process temperature field analysis , slow phenomenon does not occur in the most severe conditions , this program has been proved theoretically is practicable. Finally, a summary of this work , pointed out that the focus of future research work .

Structure and Temperature Field Analysis for the Scheme of the Train Wheel Equipped with Buckle

Abstract

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