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Dynamic analysis modular-modeling method for gear transmission system

A technology of system dynamics and analysis modules, which is applied in the field of modular modeling of gear transmission system dynamics analysis, can solve problems that affect the accuracy of dynamic calculation results, lack of versatility, and low efficiency, so as to improve modeling efficiency and the effect on the accuracy of the calculated results

Inactive Publication Date: 2014-06-18
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

This method has the limitation that it is not universal. If the configuration of the gear transmission system changes, it is necessary to re-analyze the force analysis of each part of the system to establish a dynamic model, which makes it difficult for various gear transmission system structures. The process of evaluating the dynamic characteristics of the type scheme becomes very complicated and inefficient; in addition, abstracting the shaft with a complex structure into a concentrated mass point will affect the accuracy of the dynamic calculation results to a large extent

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  • Dynamic analysis modular-modeling method for gear transmission system
  • Dynamic analysis modular-modeling method for gear transmission system
  • Dynamic analysis modular-modeling method for gear transmission system

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Embodiment Construction

[0039] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0040] The gear transmission system dynamics analysis process that the present invention establishes is as follows figure 1 As shown, the specific steps are as follows:

[0041] 1) Transmission chain configuration initialization: refers to the automatic initialization of the transmission chain of the gear transmission system according to the information data of the transmission chain, that is, the number of composition stages, gear types, connection relations, etc. of the transmission system are obtained;

[0042] 2) Calculation of inertia and stiffness: refers to the calculation of the moment of inertia and meshing stiffness of the gear, and the calculation of the moment of inertia and torsional stiffness of the shaft;

[0043] 3) Dynamic model construction: refers to the automatic creation of the unit and node information of each modu...

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Abstract

The invention discloses a dynamic analysis modular-modeling method for a gear transmission system. Parts of the gear transmission system are modularly processed to form three modules with specific input and output interfaces, i.e. a shaft module, a gear pair module and a planetary gear module, according to the dynamic rapid evaluation requirements of a gear transmission system configuration design scheme; an overall mass matrix and an overall rigidity matrix of the gear transmission system can be rapidly generated only by using transmission part connecting relationship information, gear basic parameters and shaft structure basic parameters are in the gear transmission system configuration design scheme as input data, so that a dynamic analysis model of the gear transmission system is established, and the dynamic analysis efficiency of the gear transmission system can be greatly improved. In addition, a shaft with a complex structure is discretized into a plurality of shaft sections to form a plurality of shaft units, so that the accuracy of a dynamic calculation result can be improved.

Description

technical field [0001] The invention belongs to the technical field of dynamics and relates to a modular modeling method for dynamic analysis of a gear transmission system. Background technique [0002] Gear transmission system dynamics is a science that studies the dynamic behavior of a gear transmission system in the process of transmitting motion and power. It takes the gear transmission system as the object and takes the dynamic characteristics of the gear pair meshing process as the core to improve and improve the gear transmission system. For the purpose of the dynamic behavior of the system, on the basis of considering the dynamic characteristics of each component of the system, using the theory and method of vibration mechanics, to study the basic laws of vibration, impact and noise in the transmission power and motion of the gear transmission system, for the design and manufacture of small The gear transmission system with vibration, low noise, high reliability and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 王海伟刘更吴立言常乐浩韩冰杨小辉刘岚佟瑞庭马尚君
Owner NORTHWESTERN POLYTECHNICAL UNIV
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