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Virtual car crash detecting system and construction method thereof

A construction method and collision detection technology, applied in the field of virtual experiment system, can solve the problems of restricting the development of the automobile industry, long cycle and high cost, and achieve the effects of low cost, short development cycle and high repeatability

Inactive Publication Date: 2010-01-13
HEFEI VRVIEW INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country's automobile companies still adopt the vehicle development method mainly based on imitation design, physical sample vehicle test verification, subjective experience evaluation, and repeated revisions, which cost a lot of money and have a long cycle, which seriously restricts the development of my country's automobile industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The establishment of the virtual vehicle crash test field The model of each object of the virtual test is established: the solution to the current various simulation and test platforms is simply a single software form for a certain vehicle type and movement. (1) Establish a model library of vehicles and people. The finite element model library of the tested vehicle is the primary task of the virtual crash test. It is combined with the design platform. The external dimensions of the components establish the geometric solid model of the car. Then the geometric model needs to be meshed according to the crash test project. Important components that play a decisive role in the entire collision deformation mode need to establish accurate geometric models and fine mesh sizes; non-important components, such as engines, can use approximate models. Finally, it is necessary to define the material of each part of the car and the connection form between each part, such as welding a...

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Abstract

The invention relates to a virtual car crash detecting system and a construction method thereof. The construction method comprises the following steps: constructing a car geometrical entity model according to car total quality, total size, car type base information and the external dimension of parts; constructing a finite element model of a dummy man; respectively constructing a safety belt, a safe air bag and a barrier model; constructing a virtual emulation and calculation testing table; transferring various original models in a virtual testing field to construct a virtual testing field; transferring various virtual models to be presented in a virtual environment; defining collision experimental conditions; and starting a simulation test. The virtual car crash detecting system has short development period, low use cost and realer test result.

Description

technical field [0001] The utility model relates to a virtual experiment system, in particular to a virtual experiment system for automobile collision experiments and a construction method thereof. Background technique [0002] For a long time, the improvement of the safety performance of cars has always been the goal pursued by the automotive industry. The safety performance of a car can be determined by a real vehicle crash test. The safety performance of a car can be determined by a real vehicle crash test, but because it needs to install various test equipment on a real prototype vehicle to conduct a real crash test, the cost is expensive and the cycle is very long. In China, the computer simulation application of automobile collision accidents has also been explored , developed a vehicle-to-vehicle computer simulation software, indicating that my country has made some progress in the reproduction of vehicle collision accidents. At present, my country's automobile comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G06F17/50
Inventor 陈拥权
Owner HEFEI VRVIEW INFORMATION TECH
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