A transmission shaft spline full tooth surface grinding residual stress simulation method

A residual stress and simulation method technology, applied in special data processing applications, instruments, calculations, etc., can solve problems such as different processing directions, and achieve the effect of reducing time and economic costs

Inactive Publication Date: 2019-04-09
BEIHANG UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

For the space-complex geometric surface such as the spline tooth surface, the machining direction at each node on it may be different. At present, there is no ready-made analysis module or existing solution to realize the residual stress on the machined surface. the mapping of

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  • A transmission shaft spline full tooth surface grinding residual stress simulation method
  • A transmission shaft spline full tooth surface grinding residual stress simulation method

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Embodiment Construction

[0022] The implementation of the method of the present invention will be described in detail below in conjunction with the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, the embodiments are provided for more thorough understanding of the present disclosure, and for fully conveying the scope of the present disclosure to those skilled in the art. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] The embodiment of the present invention takes a spline tooth on the transmission shaft as an object, maps the grinding residual stress tensor obtained from the simulation analysis of the existing simple grinding process to the entire spline tooth surface node, and realizes grinding based on simple local ...

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Abstract

The invention relates to a transmission shaft spline full tooth surface grinding residual stress simulation method. The method comprises the following steps: 1, preparing a residual stress analysis ortest result of universal grinding; 2, establishing a local grinding coordinate system for each finite element grid unit on the surface layer of the spline tooth; 3, according to the coordinate transformation relation between the local grinding coordinate system on the spline tooth and the spline global coordinate system, converting the single-point universal grinding residual stress obtained through analysis or testing to the spline global coordinate system for expression; And 4, traversing all tooth surface grid units, and carrying out the coordinate system transformation operation to finally obtain the residual stress distribution of the full tooth surface. A spline part grinding test and a test process can be replaced by a simple and universal grinding test and finite element simulation combined way, a tooth surface residual stress distribution result which is finer and clearer than that of a complete part test is obtained, meanwhile, the number of samples is greatly reduced, the test period is shortened, and the economic cost and the time cost are reduced.

Description

technical field [0001] The invention belongs to the field of high-performance and long-life transmission, and in particular relates to a grinding residual stress analysis method of spline tooth surface of a transmission shaft. Background technique [0002] The transmission shaft is an indispensable key component in the transmission system of heavy-duty vehicles, and its performance plays a vital role in the function realization and reliability of the entire transmission device. With the development of vehicles in the direction of diversification of types and functions in the future, the demand for high mobility and high power density will become clearer, which will inevitably lead to a more compact structure, lighter weight, and significantly higher speed of the vehicle drive shaft, and the operation The conditions are even worse, and the vibration and shock loads are greatly increased. The increasingly severe external working conditions above have resulted in more complex ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2119/06G06F30/20
Inventor 王延忠陈燕燕张炜李菲王成
Owner BEIHANG UNIV
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