Motorcycle strength CAE analysis method based on virtual road surface and explicit transient dynamics

An analysis method, motorcycle technology, applied in the field of CAE analysis of motorcycle strength, can solve the problems of low personal safety and long time for the driver, and achieve the effect of safety guarantee and short cycle

Active Publication Date: 2021-05-28
CHONGQING IONCIN NAVIGATION ENGINE MFG C0 LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is the oldest, takes the longest time, often takes more than 3 months, and the driver's personal safety is very low

Method used

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  • Motorcycle strength CAE analysis method based on virtual road surface and explicit transient dynamics
  • Motorcycle strength CAE analysis method based on virtual road surface and explicit transient dynamics

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Embodiment Construction

[0043] Below in conjunction with accompanying drawing, the present invention is further described:

[0044] The present invention provides a kind of CAE analysis method based on the motorcycle intensity of virtual road surface and explicit transient dynamics, it is characterized in that: described method comprises the following steps: as figure 1 as shown,

[0045] S1: Construct a virtual road surface for testing the fatigue strength of motorcycles, and determine the stress-strain curves corresponding to the materials used in motorcycles;

[0046] Constructing a virtual road surface specifically includes the following steps:

[0047] S11: Obtain the original road surface point cloud through laser 3D scanning, and import the road surface point cloud into CATIA software; CATIA is a high-end CAD / CAM software developed by Dassault Aircraft Company of France. CATIA software enjoys a high reputation in the fields of aircraft, automobile, ship and other design for its powerful surf...

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Abstract

The invention provides a CAE analysis method for motorcycle strength based on a virtual pavement and explicit transient dynamics, and the method comprises the following steps: S1, constructing a virtual pavement for testing the fatigue strength of a motorcycle, and determining a stress-strain curve corresponding to a material used by the motorcycle; s2, determining a rigidity and damping force curve of a shock absorber of the motorcycle; s3, building a tire model of the motorcycle through finite element software; s4, constructing a whole motorcycle 3D model matched with the motorcycle through finite element software; s5, constructing a driving system model of the whole vehicle and the virtual road surface in finite element software; s6, calculating the running process of the whole vehicle on the virtual road surface through finite element software, and obtaining acceleration, displacement and stress information in the calculation process; and S7, through the acceleration, displacement and stress information, optimizing and improving the whole vehicle by utilizing an optimization function of the finite element software, entering the step S4 until the optimization is completed, obtaining the optimal acceleration, displacement and stress information, and ending.

Description

technical field [0001] The invention relates to the technical field of motorcycle fatigue strength, in particular to a CAE analysis method for motorcycle strength based on virtual road surface and explicit transient dynamics. Background technique [0002] In the automobile and motorcycle industry, the fatigue strength and vibration of the whole vehicle are mainly studied from the chassis (frame). At present, the method of examining the frame strength in the motorcycle industry is roughly divided into two types: CAE simulation and test. CAE simulation method: The main CAE simulation methods include the static strength analysis method combined with engineering experience, and the quasi-static fatigue strength analysis method based on road spectrum collection and load iterative decomposition combined with tests. The static strength analysis method combines the experience of engineers to artificially simplify the problem and cannot examine the dynamic strength, which has low ana...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/15G06F119/14
CPCG06F30/23G06F30/15G06F2119/14Y02T90/00
Inventor 涂奎刘进伟贾志超汪平波邓煜坤傅云周玉军
Owner CHONGQING IONCIN NAVIGATION ENGINE MFG C0 LTD
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