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Method and device for evaluating automobile parts damage based on CAE crash simulation

A technology for auto parts and damage assessment, which is applied in design optimization/simulation, instrumentation, electrical digital data processing, etc.

Active Publication Date: 2016-09-28
DALIAN ROILAND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of determining the damage level, the present invention provides a method for evaluating damage to auto parts based on CAE collision simulation, and its technical points are:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: a kind of damage assessment method of auto parts based on CAE collision simulation, including

[0023] S1: Carry out classification and statistics of various automobile collision accidents, and extract relevant data used in CAE simulation in collision accidents;

[0024] S2: Establish vehicle CAE finite element simulation model;

[0025] S3: Establish a CAE finite element simulation model of the collision object according to the data extracted in step S1;

[0026] S4. Establish a standard library for damage repair and replacement of auto parts, define different levels for the stress and strain limit values ​​of parts, and establish a corresponding loss level library. The loss level library is based on the matching level The ratio of the area of ​​all damaged CAE cells within the range to the area of ​​the component is established;

[0027] S5: Extract relevant data from the actual collision accident, and adjust the working conditions of the CAE simulatio...

Embodiment 2

[0033] Embodiment 2: a kind of auto parts damage assessment device based on CAE collision simulation, comprising

[0034] Statistical module, which classifies and counts various automobile collision accidents, and extracts relevant data for CAE simulation in collision accidents;

[0035] The vehicle model building module is used to establish the CAE finite element simulation model of the vehicle;

[0036] The collision object simulation building module uses the data extracted by the statistics module to establish a CAE finite element simulation model of the collision object;

[0037] The damage grade library building module establishes the damage repair and replacement standard library of auto parts, demarcates different grades for the stress and strain limit values ​​of parts, and establishes the corresponding loss grade library. The loss grade library, It is established according to the ratio of the area of ​​all damaged CAE cells in the matching grade range to the area of ...

Embodiment 3

[0043] Embodiment 3: a kind of damage assessment technology based on CAE collision simulation auto parts is realized by the following steps:

[0044] S1: Classify and count various automobile collision accidents, and extract relevant data that can be used for CAE simulation in the collision accident, including but not limited to the vehicle's current speed, acceleration, and the above relevant data of the collision object and the relevant collision environment, etc.;

[0045] S2: Establish vehicle CAE finite element simulation model;

[0046] S3: Establish a CAE finite element simulation model of the collision object according to the data extracted in step S1;

[0047] S4: According to the relevant data extracted from the actual collision accident, adjust the working conditions of the CAE simulation model, that is, restore the collision accident at that time;

[0048] S5: After setting the working conditions, perform calculation and analysis to obtain the stress value, strain...

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PUM

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Abstract

The invention discloses a method and a device for evaluating automobile parts damage based on CAE crash simulation, belongs to the field of automobile crash parts damage evaluation, and aims to solve the problem of damage grade determination. The method comprises the steps of: establishing an automobile parts damage repair and replacement standard library, dividing stress and strain limit values of parts into different grades, and establishing a corresponding loss grade library, wherein the loss grade library is established according to a proportion of an area of all damaged CAE cells in a matched grade range to the parts area; and in the established automobile parts damage repair and replacement standard library, dividing the stress and strain limit values of the parts into different grades, matching the stress limit values and the strain limit values of the damaged parts in the step S6 with the grades, and calculating the area of all damaged CAE cells in the grade range.

Description

technical field [0001] The invention belongs to the field of auto parts damage assessment, in particular to a damage assessment method for auto parts based on CAE collision simulation technology. Background technique [0002] With the rapid development of computer software and hardware, CAE simulation technology has also been greatly improved. CAE simulation technology has been used by various automobile manufacturers to test vehicle performance in collision experiments, and the corresponding technical processes and required conditions are becoming more and more perfect. , with the advent of the era of big data, if CAE simulation is used to simulate collision accidents and classify the corresponding lost parts, it can be applied to the fields of auto insurance claim settlement, auto collision maintenance assessment and quotation, etc. Contents of the invention [0003] In order to solve the problem of determining the damage level, the present invention provides a method fo...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06Q40/08
CPCG06F30/23G06Q40/08
Inventor 田雨农吕文策
Owner DALIAN ROILAND SCI & TECH CO LTD
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