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Dynamic performance evaluation and optimization method for arc-shaped tooth surface worm reducer

A worm reducer, dynamic performance technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as low precision and poor accuracy, and achieve the effect of ensuring calculation accuracy

Active Publication Date: 2018-05-22
HAIAN COUNTY SHENLING ELECTRICAL APPLIANCE MFG +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a dynamic performance evaluation and optimal design method of a worm reducer, which can analyze the dynamic Accurate assessment of performance and optimization of its dynamic performance

Method used

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  • Dynamic performance evaluation and optimization method for arc-shaped tooth surface worm reducer
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  • Dynamic performance evaluation and optimization method for arc-shaped tooth surface worm reducer

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Embodiment Construction

[0026] A method for evaluating and optimizing the dynamic performance of an arc-shaped worm reducer, comprising the following steps:

[0027] Step 1. Establish the solid model of the worm reducer according to the two-dimensional parts diagram of the worm reducer. In the assembly modeling environment, first determine the assembly position reference of the main components, and then use the parametric method to establish the solid model.

[0028] Step 2. Simplify the parts of the solid model, perform the Boolean merge operation of the solid model on the bolted parts with the same material, and convert the simplified model of the solid into .stp format and import it into the software ANSYS Workbench.

[0029] Step 3. Mesh the simplified solid model, and use the meshing method combining tetrahedron elements and hexahedron elements to establish the finite element model of the whole machine, in which the worm gear, worm, worm gear seat, and output shaft adopt hexahedron solid elements...

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Abstract

The invention discloses a dynamic performance evaluation and optimization method for an arc-shaped tooth surface worm reducer and belongs to the technical field of lifting conveying transmission devices. According to the method, dynamic model construction and parameter identification are performed on the worm reducer, and dynamic performance analysis is performed in combination with finite elementanalysis software to obtain vibration displacement, vibration acceleration and vibration acceleration time-domain response of the worm reducer; fast Fourier transformation is performed on a time-domain response signal to obtain a frequency function with frequency being an independent variable and amplitudes of all frequency components forming the signal being dependent variables, and frequency analysis is used for determining the authenticity of potential resonance points; and based on this, a gear system coupling dynamic model is established based on a lumped parameter method, an optimization objective function is determined, a dynamic performance optimization model is constructed, optimal configuration is solved, and therefore the complete machine dynamic performance of the worm reduceris optimized.

Description

technical field [0001] The invention belongs to the technical field of lifting and conveying transmission devices, and in particular relates to a method for optimizing the dynamic performance of an arc-shaped tooth surface worm reducer. Background technique [0002] In the analysis of the dynamic performance of the reducer, the modal analysis is the most basic content. Modal analysis is based on vibration theory, through calculating the vibration characteristics of mechanical structures or mechanical parts - natural frequency and mode shape, to perform direct dynamic performance estimation. Modal analysis can be used as a starting point for other dynamic analysis problems such as transient dynamic analysis, harmonic response analysis, and spectral analysis. [0003] Transient dynamics analysis is a technique for determining the response of a structure under time-varying loads. Transient dynamics is a time-domain analysis. The input excitation is a time-varying load, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 吉卫喜范小斌马玉娟李春涛程峰
Owner HAIAN COUNTY SHENLING ELECTRICAL APPLIANCE MFG