Method for analyzing meshing characteristic of gear pair

An analysis method and characteristic analysis technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of low efficiency in the analysis of gear pair meshing characteristics, and achieve the effect of high calculation accuracy and high calculation efficiency

Active Publication Date: 2018-11-20
NORTHEASTERN UNIV
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[0010] The invention provides a method for analyzing the meshing characteristics of gear pairs, which ha

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  • Method for analyzing meshing characteristic of gear pair
  • Method for analyzing meshing characteristic of gear pair
  • Method for analyzing meshing characteristic of gear pair

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[0056] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below in conjunction with the accompanying drawings and through specific embodiments.

[0057] In order to facilitate the understanding of the present invention, the gear meshing theory is introduced as follows: According to the gear meshing theory, at any moment in a meshing cycle T of gear pair meshing, there are at most two pairs of gear teeth participating in meshing at the same time; In the meshing period T, the driving wheel or the driven wheel is in its meshing area, and at most 3 pairs of adjacent gears enter into the meshing area successively. That is, there are cases of early engagement and late engagement.

[0058] When calculating the time-varying mesh stiffness of a gear pair, it is necessary to calculate the tooth stiffness of the driving wheel and the driven wheel respectively. In the gear meshing theory, in the single tooth me...

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Abstract

The invention relates to a method for analyzing a meshing characteristic of a gear pair. Based on the finite element model, the method for analyzing the meshing characteristic of the gear pair adoptsthe analytical method to analyze whole deformation and local contact deformation of the gear pair, and can the time-varying meshing stiffness and the bending stress of tooth roots. The method avoids nonlinear contact iteration and has higher computational efficiency and higher computational accuracy. The method can consider addendum modification, extended meshing contact and complex tooth bases ofa spur gear pair.

Description

technical field [0001] The invention belongs to the technical field of mechanical dynamics, and in particular relates to a method for analyzing the meshing characteristics of a gear pair. Background technique [0002] In gear transmission, mesh stiffness excitation is one of the main dynamic excitations of gear meshing. Accurate evaluation of meshing characteristics is very important for predicting dynamic performance and improving design of spur gear pairs. At present, the existing methods for analyzing the meshing characteristics of spur gear pairs have the following characteristics: [0003] 1) Finite element method [0004] When the finite element method simulates the contact process of the gear pair, the contact element is usually established to simulate the real contact relationship. This method requires a sufficiently fine mesh of the contact area to ensure convergence. Because of the large-scale nonlinear iterative solution involved, the efficiency of this method ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/23G06F2119/04G06F2119/06
Inventor 马辉皇甫一樊陈康康孙衍宁闻邦椿
Owner NORTHEASTERN UNIV
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