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Self-adaptive modeling method for flexible supporting gear transmission device

A technology of gear transmission and modeling method, which is applied in the field of dynamics, can solve problems such as not considering the mutual influence of the system, and achieve the effect of convenient and fast modeling, good adaptability, and improved calculation efficiency

Active Publication Date: 2019-12-27
NORTHWESTERN POLYTECHNICAL UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When analyzing the vibration of the box, the conventional method is to establish a finite element model of the box and take into account the bearing excitation force of the uncoupled transmission system model, and also does not consider the mutual influence between the various systems

Method used

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  • Self-adaptive modeling method for flexible supporting gear transmission device
  • Self-adaptive modeling method for flexible supporting gear transmission device
  • Self-adaptive modeling method for flexible supporting gear transmission device

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Embodiment 1

[0036] The invention provides an adaptive modeling method for a flexible support gear transmission, which can perform adaptive modeling on complex flexible support gear transmissions, such as figure 1 As shown, the entire gear system is divided into: transmission system module 1, box module 2, vibration isolator module 3 and basic module 4, such as Figure 4 As shown, it specifically includes the following steps:

[0037] Step 1. For the transmission system module, the lumped mass method is used to extract the mass matrix, stiffness matrix and damping matrix of the transmission system module;

[0038] In this embodiment, the transmission system module in step 1 includes gears, shafts, and bearings. The lumped mass method is used to extract the mass matrix, stiffness matrix, and damping matrix of gears, shafts, and bearings, and then consider the relationship between gears, shafts, and bearings. The coupling effect of , the mass matrix, stiffness matrix and damping matrix of t...

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Abstract

The invention provides a self-adaptive modeling method for a flexible support gear transmission device, which belongs to the technical field of dynamics and divides a whole gear system into a transmission system module, a box body module, a vibration isolator module and a basic module. The transmission system module extracts a mass matrix, a rigidity matrix and a damping matrix by adopting a concentrated mass method, and the box body module extracts the mass matrix, the rigidity matrix and the damping matrix by adopting a substructure method; the vibration isolator module adopts a spring unitfor modeling; the basic module adopts a substructure method to extract a mass matrix, a rigidity matrix and a damping matrix; a mass matrix, a rigidity matrix and a damping matrix of the system are assembled to obtain a complete coupling system dynamic model. The method has the characteristic of convenience and quickness in modeling, and self-adaptive modeling can be performed according to different gears, different transmission modes and different vibration isolation modes.

Description

technical field [0001] The invention belongs to the technical field of dynamics, and in particular relates to an adaptive modeling method for a flexible support gear transmission. Background technique [0002] Rational prediction of gear system vibration requires consideration of all major mechanical elements in the dynamic model. Many scholars at home and abroad have done a lot of research on the gear system, the degree of freedom and scale of the model has been continuously expanded, the factors considered have become more and more comprehensive, and more coupling relationships have been established. The development of gear system dynamics model has gone through the following stages: 1) Dynamic load coefficient model, 2) Pure torsion model, 3) Mesh coupling model, 4) Gear-rotor coupling model, 5) Gear-rotor-support system model. The gear-rotor-support system model is the most general and complex model among all kinds of models. It not only considers the coupling effect be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCY02T90/00
Inventor 王海伟刘更刘岚吴立言任亚峰李健
Owner NORTHWESTERN POLYTECHNICAL UNIV
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