%0 Journal Article
%T TRUSS GEOMETRY OPTIMIZATION BASED ON TWO STEP METHOD LINKED WITH SENSITIVITY OF OPTIMAL OBJECTIVE<br>最优目标敏度紧系的桁架几何两步优化方法
%A Sui Yunkang
%A Yang Deqing
%A Sun Huanchun
%A <br>隋允康
%A 杨德庆
%A 孙焕纯
%J 力学学报
%D 1997
%I 
%X The problem of the truss geometry optimization is solved by a sequential two step method. After finishing cross section optimization the first and second order derivatives of optimum objective with respect to nodal coordinate variables are calculated to construct a model of the shape optimization. Therefore, an approximate explicit formulation is established to overcome the difficulty of forming the optimization model of the second subproblem. It is easily solved by the sequential quadratic program algorithm and satisfactory numerical results can be obtained.
%K sensitivity analysis
%K the optimal objective
%K two
%K step optimization strategy
%K geometry optimization of truss structure
%K modelling<br>最优目标
%K 敏度分析
%K 桁架
%K 几何优化设计
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=AE6D6FBC5E5081AC4B07EDBEC43C196A&yid=5370399DC954B911&vid=771469D9D58C34FF&iid=E158A972A605785F&sid=47F7649551A37CFC&eid=D93AD940782892D0&journal_id=0459-1879&journal_name=力学学报&referenced_num=1&reference_num=3