Automobile cast aluminum alloy part collision simulation method considering casting defect damage

A technology for casting aluminum alloys and casting defects, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve problems such as low simulation accuracy, ensure state consistency, reduce modeling complexity, and improve calculation accuracy sexual effect

Pending Publication Date: 2022-04-22
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The technical problem to be solved by the present invention is to overcome the problem of low simulation accuracy existing in the prior art, and to provide a collision simulation method for automobile casting aluminum alloy parts considering casting defect damage

Method used

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  • Automobile cast aluminum alloy part collision simulation method considering casting defect damage
  • Automobile cast aluminum alloy part collision simulation method considering casting defect damage
  • Automobile cast aluminum alloy part collision simulation method considering casting defect damage

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Embodiment Construction

[0058] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention belongs to the technical field of automobile passive safety simulation, and relates to an automobile cast aluminum alloy part collision simulation method considering casting defect damage. Comprising the following steps: partitioning cast aluminum alloy parts, determining defects of the cast aluminum alloy parts, establishing a defect-free cast aluminum alloy material card, calculating a casting defect damage value, and mapping the casting defect damage value and a collision model damage variable; mapping the obtained damage value into a collision simulation model; for a damage variable D of a unit in the collision simulation model, the relation between the damage variable D and Dn is that the calculation accuracy of the simulation model is greatly improved; the state consistency of the parts used in the collision test and the simulation model is ensured; and the modeling complexity of cast aluminum parts with defects is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of automobile passive safety simulation, and relates to a collision simulation method for automobile casting aluminum alloy parts considering casting defect damage. Background technique [0002] In recent years, with the continuous increase of car ownership and the increasing number of traffic accidents, the government and consumers have paid more and more attention to car safety year by year. With the increasingly stringent automobile emission and energy consumption regulations, the lightweight of automobiles has attracted more and more attention from the industry. The high strength and low density of cast aluminum alloys, and the characteristics of forming complex cross-section parts make them suitable for automobiles, especially automobile chassis. Applications are becoming more common. [0003] At present, cast aluminum materials are widely used in automobile subframes, steering knuckles, shock towers a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/17G06F30/23G06F119/14
CPCG06F30/15G06F30/17G06F30/23G06F2119/14
Inventor 芦强强王士彬朱学武刘国军姚宙娄方明
Owner CHINA FIRST AUTOMOBILE
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