论文部分内容阅读
本文提出了一个新的求结构设计最优解的搜索法,斜网格二次搜索法。该法对无初始随机搜索法的初始复形作了较大的改革,在产生了有效的投点域后运用投点域上一些简单的斜网格点形成一个初始形而后进行模式搜索。由于斜网格点具有较好的目标函数值,因此有利于极值的搜索.从而使收敛速度加快,计算时间减少。该法为处理不同性质材料混用或复杂结构提供了有效的方法。 文中讨论了其它搜索法在钢筋混凝土框架优化设计中应用的可能性。对四个实例运用几种方法进行计算,结果表明斜网格二次搜索法取得了更好的效果。
This paper proposes a new search method for the optimal solution of structural design, diagonal grid quadratic search method. This method makes a great deal of reform in the initial complex without initial random search method. After generating an effective projection field, it uses some simple oblique grid points on the shooting point to form an initial shape and then performs pattern search. Since the diagonal grid points have a better objective function value, it is advantageous for the search of the extreme value, so that the convergence speed is accelerated and the calculation time is reduced. This method provides an effective method for dealing with mixed materials or complex structures with different properties. This paper discusses the possibility of applying other search methods in the optimization design of reinforced concrete frames. Four examples were calculated using several methods. The results show that the diagonal grid secondary search method achieves better results.