Analysis method for obtaining transmission stress of harmonic gear

An analysis method and technology of harmonic gears, applied in special data processing applications, instruments, geometric CAD, etc., can solve the problems of inconsistent stress distribution in analysis results, unclear application of boundary conditions, and inaccurate strength analysis results. Accurate and efficient strength analysis results, extracting the stress distribution of harmonic gear transmission, and the effect of standardized analysis steps

Active Publication Date: 2021-08-17
CHONGQING UNIV +1
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AI Technical Summary

Benefits of technology

The technical effect described in this patented technology allows for an improved understanding of how harmonious gears work without being affected or damaged due to external forces such as vibrations caused from machinery operations. By simplifying the mathematical models involved, these methods allow for more precise simulation over time while maintaining their validity under different operating environments. Additionally, they provide valuable insights into the structure and behavior of the drive system's component parts when subjected to high loads. Overall, it provides better quality control measures than existing techniques which have been developed earlier but still require significant effort and resources.

Problems solved by technology

This patented technical solution described by the inventors involves analyzing damage caused during machining processes or use of harmonics gears due to external forces such as impact loads. However existing analyte solutions have limitations with regards to accurately calculating tensile stresses under complex loading environments without requiring expensive equipment like experiments.

Method used

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  • Analysis method for obtaining transmission stress of harmonic gear
  • Analysis method for obtaining transmission stress of harmonic gear
  • Analysis method for obtaining transmission stress of harmonic gear

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Embodiment Construction

[0029] The following is further described in detail through specific implementation methods:

[0030] Such as figure 2 The shown harmonic gear reducer includes a wave generator (composed of cam 4 and flexible bearing 3), flexible spline 1 and rigid spline 2, the flexible spline 1 and rigid spline 2 are meshed, the wave generator is in contact with the inner wall of the flexible spline 1, and the cam 4 Wearing in the inner ring of the flexible bearing 3, the outer ring of the flexible bearing 3 is in contact with the inner wall of the flexspline 1, and the finite element modeling analysis method for obtaining the stress of the harmonic gear transmission includes the following figure 1 The following steps are shown:

[0031] S1: According to the structure of the harmonic gear reducer, use the 3D modeling software SolidWorks to establish the assembly model of the harmonic gear reducer including the wave generator, flexible spline, and rigid spline, and export the step format file

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Abstract

The invention particularly discloses an analysis method for obtaining transmission stress of a harmonic gear, which comprises the following steps of simplifying a model established in three-dimensional software, and performing finite element mesh division on an assembly model by adopting hexahedral mesh units; importing the inp format grid model into ABAQUS, and giving material attributes to the component; setting an analysis step and an analysis process output item; defining mutual contact action on the grid assembly body model, and applying load and boundary constraint conditions; analyzing the calculated and displayed data, and extracting stress, strain and other data of a unit integration point of a certain increment step under a certain analysis step of the harmonic gear from an analysis result; the harmonic reducer finite element strength analysis method is beneficial to representing the mutual relation among all the parts of the harmonic reducer, can truly simulate the stress condition of the harmonic reducer, improves the accuracy of harmonic reducer finite element strength analysis, provides a theoretical basis for strength analysis of harmonic gear key parts, and is suitable for popularization and application, and the defects of high cost, long time consumption and the like of an experimental mode are effectively avoided.

Description

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Claims

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Application Information

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Owner CHONGQING UNIV
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