CAE Oriented Error Evaluation and Information Reuse of Simplified Models

China Mechanical Engineering ›› 2012, Vol. 23 ›› Issue (8): 961-967.

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CAE Oriented Error Evaluation and Information Reuse of Simplified Models

Tang Jianguo;Cao Weijuan;Gao Shuming

State Key Lab of CAD&CG,Zhejiang University,Hangzhou,310058

Online:2012-04-25 Published:2012-05-10
Supported by:
National Natural Science Foundation of China（No. 60736019）

面向CAE的简化模型误差评估与信息重用

唐建国;曹魏娟;高曙明

浙江大学CAD&CG国家重点实验室,杭州,310058

基金资助:
国家自然科学基金资助项目(60736019)
National Natural Science Foundation of China（No. 60736019）

Abstract

Abstract:

A method of error evaluation and information reuse in the analysis of simplified models was proposed.After evaluating the impacts of suppressed features on initial simplified models,the impacts were utilized to guide model simplification,and the analysis information was reused through partial matrix refactorization to accelerate the analysis process of the final simplified models.It is a computationally non-intensive method and can be used to improve the analysis accuracy and efficiency for the final simplified models. It can be applied to the linear static analysis of elastic structures.

Key words: CAD/CAE, model simplification, defeaturing, information reuse

摘要：

提出了一种面向CAE的简化模型误差评估与信息重用方法。首先对简化模型的分析结果进行评估,根据被抑制特征对分析结果的影响生成最终简化模型。然后重用简化模型的分析信息,利用稀疏矩阵局部分解技术,完成对最终简化模型总刚度矩阵的分解。该方法可以评估简化模型的分析精度，生成满足分析精度的最终简化模型，实现对最终简化模型的快速分析。实例表明,简化模型的误差评估与信息重用方法提高了最终简化模型的分析精度和分析效率,可用于线性弹性结构的静力分析。


关键词: CAD/CAE, 模型简化, 特征抑制, 信息重用

CLC Number:

TP391

TANG Jian-Guo, CAO Wei-Juan, GAO Shu-Meng. CAE Oriented Error Evaluation and Information Reuse of Simplified Models[J]. China Mechanical Engineering, 2012, 23(8): 961-967.

唐建国, 曹魏娟, 高曙明. 面向CAE的简化模型误差评估与信息重用[J]. 中国机械工程, 2012, 23(8): 961-967.

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CAE Oriented Error Evaluation and Information Reuse of Simplified Models

面向CAE的简化模型误差评估与信息重用

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