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Optimization design method for heavy-load and unbalance-load gear transmission system based on motion stability

A motion stability and optimization design technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve the problems of gear transmission system vibration, reduce the service life of gear transmission system, noise, etc., to improve work performance, Modeling considers all factors and optimizes the effect of the design

Active Publication Date: 2021-06-22
BEIHANG UNIV
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Problems solved by technology

Special nonlinear dynamic behaviors such as bifurcation, chaos, and amplitude mutation caused by resonance will cause the meshing force between gears to be in a state of irregular motion for a long time, or even change abruptly, resulting in vibration and noise in the entire gear transmission system. Reduced service life of the gear drive system

Method used

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  • Optimization design method for heavy-load and unbalance-load gear transmission system based on motion stability
  • Optimization design method for heavy-load and unbalance-load gear transmission system based on motion stability
  • Optimization design method for heavy-load and unbalance-load gear transmission system based on motion stability

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Embodiment Construction

[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation of the present invention is not limited thereto.

[0053] The present invention proposes an optimal design method for heavy-duty and partial-load gear transmission systems based on motion stability, and realizes the optimization of gears by establishing a nonlinear dynamic model of the gear transmission system and combining nonlinear dynamic theory knowledge design.

[0054] Including nonlinear dynamic modeling and dynamic characteristic analysis of gear transmission system. In order to clearly and concisely illustrate the method proposed by the present invention, in figure 1 The concrete gear train model is replaced by a simplified model in . The method design flow chart is as follows figure 2 As shown, the specific steps are as follows:

[0055] Step 1: Extract various internal and external motivating factors...

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Abstract

The invention discloses an optimal design method for a heavy-load and unbalanced-load gear transmission system based on motion stability. The method comprises the steps: extracting various internal and external excitation factors which affect the stability and accuracy of gear transmission; the influence of a time-varying center distance caused by factors such as deformation of a transmission shaft and a supporting part due to heavy load on a meshing line and a gear swing effect caused by unbalance loading are mainly introduced, and a bending-torsion-swing coupling nonlinear kinetic equation of a gear transmission system is established and solved; and a parameter interval of stable movement of the system is extracted by means of a nonlinear dynamics theory, so that the system avoids complex nonlinear dynamics behaviors, and the purposes of guiding gear machining design and parameter optimization are achieved.

Description

technical field [0001] The invention relates to an optimal design method for heavy-duty and partial-load gear transmission systems based on motion stability. On the basis of extracting various internal and external incentive factors that affect the stability and accuracy of gear transmission, it focuses on factors caused by heavy loads. Based on the influence of the time-varying center distance on the meshing line caused by factors such as the deformation of the transmission shaft and the support element caused by the load, and the gear swing effect caused by the eccentric load, the bending-torsion-pendulum coupling nonlinear dynamic equation of the gear transmission system is established and analyzed. Solve the problem, judge the motion stability of the system with the help of nonlinear dynamic theory, extract the parameter interval of the stable motion of the system, and avoid complex dynamic characteristic responses, so as to achieve the purpose of guiding gear machining des...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/20G06F119/14
CPCG06F30/17G06F30/20G06F2119/14Y02T90/00
Inventor 边宇枢刘喜辉田冬博靳博涵彭佳乐
Owner BEIHANG UNIV
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