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A hybrid and automated approach to adapt geometry model for CAD/CAE integration
Engineering with Computers ( IF 8.7 ) Pub Date : 2019-02-09 , DOI: 10.1007/s00366-019-00713-4 Qingqing Feng , Xionghui Zhou , Junjie Li
Engineering with Computers ( IF 8.7 ) Pub Date : 2019-02-09 , DOI: 10.1007/s00366-019-00713-4 Qingqing Feng , Xionghui Zhou , Junjie Li
Traditional adaption of CAD geometry, which plays an important role in generating effective and fit-for-purpose finite element models, is usually carried out manually and optionally with excessive dependence on engineer’s experience. Automatic and efficient geometry modification before simulation evidently improves design efficiency and quality, and cuts down product life cycle. This paper represents an automatic approach to generate simplified and idealized geometry models for CAE simulation, which consists of hybrid model simplification criteria, feature-based model simplification, and simulation intent driven geometry modification. Hybrid adaption criteria takes detailed features geometric dimension, geometry topology, design intent into consideration synthetically. Simulation intent-driven modification with the help of virtual topology operators helps to deal with geometry at a higher level to get an ameliorative boundary for mesh without perturbing the original design model with constructing history for down-stream manufacture-oriented application, such as machining feature recognition and process planning. Development of plug-in toolkit guarantees automation of the simplification process and helps generate simulation-fitted geometry for subsequent analysis and simulation process. Prototype system and cases are implemented to demonstrate the result and efficiency of the proposed approach.
中文翻译:
一种为 CAD/CAE 集成调整几何模型的混合和自动化方法
CAD 几何的传统调整在生成有效且适合用途的有限元模型方面发挥着重要作用,通常是手动进行的,并且有选择地过度依赖工程师的经验。仿真前自动高效的几何修改显着提高了设计效率和质量,缩短了产品生命周期。本文提出了一种为 CAE 仿真生成简化和理想化几何模型的自动方法,它包括混合模型简化标准、基于特征的模型简化和仿真意图驱动的几何修改。混合自适应标准综合考虑了详细特征几何尺寸、几何拓扑、设计意图。在虚拟拓扑算子的帮助下,仿真意图驱动的修改有助于在更高层次上处理几何,以获得改进的网格边界,而不会扰乱原始设计模型,并为下游面向制造的应用构建历史,例如加工特征识别和流程规划。插件工具包的开发保证了简化过程的自动化,并有助于生成适合后续分析和仿真过程的仿真几何。实施原型系统和案例以证明所提出方法的结果和效率。例如加工特征识别和工艺规划。插件工具包的开发保证了简化过程的自动化,并有助于生成适合后续分析和仿真过程的仿真几何。实施原型系统和案例以证明所提出方法的结果和效率。例如加工特征识别和工艺规划。插件工具包的开发保证了简化过程的自动化,并有助于生成适合后续分析和仿真过程的仿真几何。实施原型系统和案例以证明所提出方法的结果和效率。
更新日期:2019-02-09
中文翻译:
一种为 CAD/CAE 集成调整几何模型的混合和自动化方法
CAD 几何的传统调整在生成有效且适合用途的有限元模型方面发挥着重要作用,通常是手动进行的,并且有选择地过度依赖工程师的经验。仿真前自动高效的几何修改显着提高了设计效率和质量,缩短了产品生命周期。本文提出了一种为 CAE 仿真生成简化和理想化几何模型的自动方法,它包括混合模型简化标准、基于特征的模型简化和仿真意图驱动的几何修改。混合自适应标准综合考虑了详细特征几何尺寸、几何拓扑、设计意图。在虚拟拓扑算子的帮助下,仿真意图驱动的修改有助于在更高层次上处理几何,以获得改进的网格边界,而不会扰乱原始设计模型,并为下游面向制造的应用构建历史,例如加工特征识别和流程规划。插件工具包的开发保证了简化过程的自动化,并有助于生成适合后续分析和仿真过程的仿真几何。实施原型系统和案例以证明所提出方法的结果和效率。例如加工特征识别和工艺规划。插件工具包的开发保证了简化过程的自动化,并有助于生成适合后续分析和仿真过程的仿真几何。实施原型系统和案例以证明所提出方法的结果和效率。例如加工特征识别和工艺规划。插件工具包的开发保证了简化过程的自动化,并有助于生成适合后续分析和仿真过程的仿真几何。实施原型系统和案例以证明所提出方法的结果和效率。