吉利自主车型的综合性能开发与CAE协同优化技术

摘要

为了完成集碰撞安全性、乘坐舒适性、结构可靠性和成本控制等诸多性能于一体的车型开发，需要在汽车新产品开发的整个过程中，充分运用计算机辅助工程（CAE）分析技术，通过多学科交叉和多目标优化手段，兼顾综合性能目标和整车开发效率。本文依托吉利车型研发流程，引入参数化柔性技术和多系统优化方法，实施整车碰撞、噪声振动舒适性（NVH）和结构强度等性能的预测和优化，保证整车综合性能和设计效能，最终实现吉利自主品牌车型的高效开发。%To achieve satisfied automobile development that integrates various functionalities such as crashworthiness,passengers’comfort,structure reliability and cost control etc.,it is necessary to fully utilize computer aided engineering(CAE)analytical technologies with cross-disciplinary and multi-purpose approach,while taking account of comprehensive performance objectives and automobile development efficiency during the entire process of automobile new product development. Based on research and development process of Geely automobile,the parametric flex technology and multisystem optimization method are introduced to perform pre-diction and optimization in automobile crash,noise vibration harshness(NVH)and structure strength etc. so as to ensure automobile overall performance and design efficiency,and realize high-efficient development of Geely self-owned brand models eventually.