复杂结构优化选型的计算方法

本文为复杂结构优化选型提供了一个比较实用的计算方法:根据原有结构型式和设计经验来建立优化选型计算模型;对目标函数和约束条件作数学上近似处理后,利用Kuhn-Tucker条件和Lagrange乘子,把选型问题转化为求解典型二次规划问题;引进加权因子和利用改进后的变尺度法使计算过程简化、可靠,而且精度较高.

A METHOD OF CALCULATION OF THE OPTIMAL LECTOTYPE FOR COMPLEX STRUCTURES

A practical method of calculation for the optimal lectotype of complex structures is presented in this paper. On the basis of the initial structural style and designing experience, a calculating model for the optimal lectotype is established. After approximate processing of the objective functions and constraint conditions, the lectotype problem is transformed into one for solving canonical quadratic programming based on the Kuhn-Tucker condition and lagrange multiplier. Thus the calculating process will become simpler, more reliable and accurate by introducing the weighted factor and atilizing an improved variable metric method [1].