基于概念设计的框架车身多目标优化系统

为实现概念设计阶段车身结构和性能的快速优化，构建多工况、多目标优化系统FVO，其中包括车身几何建模、有限元分析、结构优化等。该系统可以快速建立参数化框架车身几何模型，自动生成满足多工况要求的高精度有限元模型，利用多目标优化算法对车身的梁和板结构进行多工况优化计算，为用户提供满足众多约束条件的优化设计方案。在阐述FVO系统整体结构和具体方法的基础上，通过简单设计实例证明系统的有效性和准确性。

Multi objective optimization system based on frame vehicle body concept design

In order to realize the rapid optimization of the vehicle body structure and performance in the conceptual design, the system named FVO with multiple modes and multi objective optimization is constructed, including geometric modeling, finite element analysis, structural optimization and other body design. By using this system, the parametric frame body geometric model can be established quickly, and the high precision finite element model in multiple modes can be generated automatically. The multi objective optimization algorithm can be used to optimize the beam and plate of the vehicle body under multiple modes. The system provides users with an optimized design solution satisfying many constraint conditions. Based on the explanation of overall structure and specific methods of the FVO system, the effectiveness and accuracy of the system can be proved with simple design examples.