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面向CAE的简化模型误差评估与信息重用! 被引量:8

CAE Oriented Error Evaluation and Information Reuse of Simplified Models
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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。 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.
出处 《中国机械工程》 EI CAS CSCD 北大核心 2012年第8期961-967,共7页 China Mechanical Engineering
基金 国家自然科学基金资助项目(60736019)
关键词 CAD/CAE 模型简化 特征抑制 信息重用 CAD/CAE model simplification defeaturing information reuse
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参考文献18

  • 1Foucalt G,Marin P,Lfon J C. Mechanical Criteria for the Preparation of Finite Element Model[A].Williamsburg,2004.413-426.
  • 2Lee J Y,Lee J H,Kim H. A Cellular Topology--based Approach to Generating Progressive Solid Models from Feature-centric Models[J].Computer-Aided Design,2004,(03):217-229.doi:10.1016/S0010-4485(03)00094-0.
  • 3Lee S H. A CAD-CAE Integration Approach Using Feature based Multi--resolution and Multi--abstraction Modelling Techniques[J].Computer-Aided Design,2005,(09):941-955.doi:10.1016/j.cad.2004.09.021.
  • 4Thakur A,Banerjee A G,Gupta S K. A Survey of Model Simplification Techniques for Physics-based Simulation Applications[J].Computer--Ai-ded Design,2009,(02):65-80.
  • 5Gopalakrishnan S H,Suresh K. A Formal Theory for Estimating Defeaturing-induced Engineering Analysis Errors[J].Computer-Aided Design,2007,(01):60-68.doi:10.1016/j.cad.2006.09.006.
  • 6Gopalakrishnan S H;Suresh K.Estimating the Im-pact of Large Design Changes on Field Problems[A]北京,2007205-215.
  • 7Ferrandes R,Marin P M,Leon J C. A Posteriori Evaluation of Simplification Details for Finite Element Model Preparation[J].Computers & Structures,2009,(1/2):73-80.
  • 8龚志辉,李光耀,钟志华,刘迪辉.基于仿真误差补偿模型的回弹补偿新方法[J].中国机械工程,2008,19(11):1358-1362. 被引量:14
  • 9刘晓平,金灿,李书杰.有限元仿真分析软件中建模的多态机理研究[J].系统仿真学报,2007,19(3):538-542. 被引量:14
  • 10金灿,刘晓平.抛物问题中面向协调元的模型态误差估计方法[J].计算机辅助设计与图形学学报,2011,23(4):656-666. 被引量:1

二级参考文献44

  • 1亓文果,金先龙,张晓云,李渊印,李根国.汽车碰撞有限元仿真的并行计算及其性能研究[J].系统仿真学报,2004,16(11):2428-2431. 被引量:19
  • 2李延平,朱东波,卢秉恒.基于RP/RT/RE技术的金属板料冲压成形回弹误差补偿系统[J].中国机械工程,2005,16(7):636-640. 被引量:13
  • 3周广平,高曙明,崔秀芬,杨文珍.面向网络基于分治策略的加工特征识别算法[J].计算机辅助设计与图形学学报,2005,17(6):1152-1158. 被引量:2
  • 4Wu B S, Limb C W, Li Z G. A finite element algorithm for reanalysis of structures with added degrees of freedom [J]. Finite Elements in Analysis and Design, 2004, 40 (13/14):1791-1801.
  • 5Wu B S, Li Z G. Reanalysis of structural modifications due to removal of degrees of freedom [J]. Acta Mechanica, 2005, 180(114) :61-71.
  • 6Foucalt G, Marin P M, L4on J C. Mechanical criteria for the preparation of finite element models [C] //Proceedings of the 13th International Meshing Roundtable, Williamsburg, 2004: 413-426.
  • 7Thakur A, Banerjee A G, Gupta S K. A survey of CAD model simplification techniques for physics-based simulation applications [J]. Computer-Aided Design, 2009, 41(2): 65-80.
  • 8Gopalakrishnan S H, Suresh K. A formal theory for estimating defeaturing-induced engineering analysis errors [J]. Computer-Aided Design, 2007, 39(1): 60-68.
  • 9Gopalakrishnan S H, Suresh K. Estimating the impact of large design changes on field problems [C] //Proceedings of ACM Symposium on Solid and Physical Modeling, Beijing, 2007:205-215.
  • 10Ferrandes R, Marin P M, Leon J C, et al. A posteriori evaluation of simplification details for finite element model preparation [J]. Computers and Structures, 2009, 87(1/2) : 73-80.

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