回转支承的优化设计具有与某些工程优化问题相同的两个特点。其一是反映设计优劣的实际指标不是一、二个值而是一段曲线;其二是该曲线上每一个点都是通过迭代运算求得的数值解。本文通过对这个问题的分析,提出了一个称为“浮动约束”的方法,可方便地求得与该问题对应的二目标函数的有效解,并对这一方法在工程优化中的意义作了初步的讨论。 The sleek design has the same two characteristics as some engineering optimization problems. One is that the actual indicators that reflect the pros and cons of design are not one or two but a curve; the other is that each point on the curve is obtained by iterative calculation. By analyzing this problem, this paper proposes a method called “Floating Constraint”, which can easily find the effective solution of the two-objective function corresponding to this problem. The significance of this method in project optimization Preliminary discussion.