汽车车身设计新方法与关键技术研究  

Solving 3 Dimensional Constraints with Sequential Quadratic Programming

作　　者：康友树 周济[1] 向文[1] 孙家广 陈立平[2] 

机构地区：[1]华中理工大学机械科学与工程学院 [2]华中理工大学博士学位论文

出　　处：《华中理工大学学报》1996年第9期56-60,共5页Journal of Huazhong University of Science and Technology

摘　　要：归纳总结出了部分三维几何约束形式，并用数学形式进行表达，然后把约束违反量当作优化目标，通过求解约束梯度，用序列二次规划法使约束违反量趋近于零来求解约束．这种方法避免了严格的方程组的建立，无论约束是否合理、冗余、欠缺，此算法都将给出一个最符合设计者意图的解．Based on the way of orientation of a 3 D body, some of the forms of 3 D constraints are summarized and mathematically expressed. The constraint transgression is then taken as the objective of optimization. After finding the constraint gradient, the serial quadratic programming is used to solve the constraint by making the transgression approach zero. Rigorous equations are no more required and the method will always give a satisfactory solution to meet the designers intention no matter whether the constraints are rational, redundant or deficient.

关 键 词：汽车 车身 CAD CIMS 

分 类 号：U463.820.2[机械工程—车辆工程]