Dynamic analysis method of air compressor frame

An analysis method and air compressor technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of long cycle and high development cost, and achieve the effect of short time consumption, simple steps and strong reliability

Inactive Publication Date: 2014-04-16
GUANGXI UNIVERSITY OF TECHNOLOGY +3
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a dynamic analysis method for the air compressor frame, which overcomes the defects that the structure design of the existing air compressor fr

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  • Dynamic analysis method of air compressor frame
  • Dynamic analysis method of air compressor frame
  • Dynamic analysis method of air compressor frame

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Embodiment 1

[0022] The steps of the dynamic analysis method for the frame of the air compressor in this embodiment are as follows:

[0023] The technical scheme of the present invention is as follows: a dynamic analysis method for an air compressor frame, comprising the following steps:

[0024] A. Establish the finite element model of the air compressor frame, define the unit properties and material properties; divide the model into grids, and use grid units to connect the connection parts to bear and transmit force;

[0025] B. Carry out harmonic response analysis on the finite element model, and draw the displacement-frequency curve at the vulnerable point according to the harmonic response analysis results;

[0026] C. Perform modal response analysis on the finite element model, and determine the key frequency range according to the modal response analysis results;

[0027] D. Perform frequency response analysis according to the key frequency range determined in step C, perform rando...

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Abstract

The invention aims to provide a dynamic analysis method of an air compressor frame. The dynamic analysis method includes the steps: structuring a finite element module of the air compressor frame; subjecting the finite element module to harmonic response analysis, modal response analysis and random response analysis respectively; using a displacement-frequent curve acquired from the harmonic response analysis, a PSD (phase-sensitive detector) acceleration response curve acquired from the random response analysis and low frequency acquired from the modal response analysis for contractive analysis and judging whether an air compressor frame structure is satisfactory to quality requirements or not. The dynamic analysis method has the advantages that the defects that an existing air compressor frame needs to be committed through loads of tests on structural design, is high in development cost and long in cycle length are overcome; the dynamic analysis method is simple in step, short in time consumption and highly reliable, and a theoretical foundation is provided for optimal design of the air compressor frame.

Description

technical field [0001] The invention relates to the field of frame structure analysis, in particular to a dynamic analysis method for an air compressor frame. Background technique [0002] my country's mobile air compressor market will account for more than 1 / 3 of the entire compressor market. As an emerging market, the market space for mobile air compressors is relatively larger and the profits are higher. At present, the mobile air compressor market is mainly occupied by Taiwan-funded and foreign-funded enterprises, and there are few self-developed air compressors on the market. The frame is the main bearing part of the mobile air compressor. At present, the domestic design of this type of frame is still in the empirical design stage, and the damage to the frame caused by the force of the air compressor during operation has not yet been solved. Quantitative research leads to structural fractures in the initial development stage of the product, and a large number of tests ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 尹辉俊孙钊莫翔明刘媛媛李峰王新宇
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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