关键词: 正向概念设计, T型接头, 快速优化, 多目标优化, 工程实用性

Abstract:

In  the conceptual design phase of  a  vehicle body,the rapid optimization idea oriented forward conceptual design for T-joint was proposed.The full parametric model of T-joint driven by implicit parameters was directly established using joint cross-section information quickly,rather than using the CAD model,and the automatic multi-objective optimization design process of T-joint was created. With the constraints of meeting the strength and stiffness requirements, took below joint of B pillar of a certain car for example, the T-joint structure with better side impact performance and quality targets was designed quickly. Optimization results were  applied to the actual vehicle after appropriate adjustments according to the requirements of stamping process and the outer shape.

Key words: forward conceptual design, T-type joint, rapid optimization, multi-objective optimization, engineering practicability