计算机辅助工程(CAE)及其发展

 CAD/CAM/CAE三者中，前两者概念较直观，CAE概念则是发展的，涵盖范围 广，比较灵活. 当前，CAE已由数值计算发展到仿真，并向CAD/CAM全面融合的虚拟现实拓 展. 随着有限元技术的成熟以及神经网络、遗传算法等智能算法的引入，计算机辅助工程分 析不仅服务于详细设计，而且支持总体方案设计. 基于产品研发过程，对CAE本身进行 了分析，全面阐述了CAE的目标、物理内容、算法，说明了有限元/人工智能在方案设计中 的应用. 对优化技术的发展历程进行了回顾，并展望了未来CAE的发展动向及若干重要问题.

RESEARCH ON CAE AND ITS DEVELOPMENT

Among the family. of CAD/CAM/CAE, CAD and CAM are more straight-forward in concept, while CAE covers a wider area and is fast developing. Now CAE has developed from numerical computation to simulation, towards a realization of virtual reality with CAE and CAD being closely combined. With the development of FEM and new artificial intelligence algorithms including ANN and GA, not only detailed designs but also global designs are supported by CAE. On the basis of a R & D scheme, CAE is analyzed in terms of its target, physical content and algorithm. The application of finite-element-based and Al-based algorithms in conceptual design phase is illustrated. Advances of the modern design optimization are reviewed. The progress of CAE and some important research directions in a near future are discussed.