| 面向产品级仿真的零部件模型降阶方法 |
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| 引用本文： | 薛莲,田凌,范灿升,郝文涛.面向产品级仿真的零部件模型降阶方法[J].计算机仿真,2009,26(6):100-103. |
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| 作者姓名： | 薛莲 田凌 范灿升 郝文涛 |
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| 作者单位： | 清华大学精密仪器与机械学系,北京,100084 |
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| 基金项目： | 国家863/CIM3主题资助项目 |
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| 摘 要： | 为了提高复杂产品的产品级仿真速度,缩短产品开发周期,基于模态分析理论提出一种针对零部件结构的模型降阶方法,根据零部件几何模型网格划分结果,构建质量矩阵和刚度矩阵,计算结构的模态,根据合理的方法选取尽量少的模态构建零部件的降阶模型.最后通过对一个机翼模型进行降阶处理,对比分析降阶前后计算结果,证明了方法在保证精度的前提下,有效地降低了机翼模型的自由度,为产品级仿真提供了先决条件.
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| 关 键 词： | 产品级仿真 降阶模型 模态选取 |
A Component Model Order Reduction Method for Product-Level Simulation |
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| XUE Li-an,TIAN Ling,FAN Can-sheng,HAO Wen-tao.A Component Model Order Reduction Method for Product-Level Simulation[J].Computer Simulation,2009,26(6):100-103. |
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| Authors: | XUE Li-an TIAN Ling FAN Can-sheng HAO Wen-tao |
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| Affiliation: | Department of Precision Instruments and Mechanology;Tsinghua University;Beijing 100084;China |
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| Abstract: | A component model order reduction method based on mode analysis theory was designed to speed up product-level simulation and decrease product lifecycle.Based on grid partitioning of component geometry model,mass matrix and stiffness matrix were composed,modes of structural were calculated.Then some modes were selected in a proper way to compose the reduced-order model.Finally the method was used on an aerofoil model.The results show that the reduced-order method effectively reduces the number of degrees of ... |
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| Keywords: | Product-level simulation Reduced-order model Mode selection |
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