摆式列车径向转向架优化设计及I—DEAS算法

针对我国首创的摆式列车径向转向架，不仅结构复杂，受力状态也相当复杂的现状。在讨论了著名的Ｉ－ＤＥＡＳ软件的优化算法之后，对摆式列车径向转向架的构架进行了优化设计。优化设计模型中，不仅考虑了应力约束，还考虑了位移约束及设计变量界限约束。优化设计结果表明，不仅降低了局部应力集中，同时又满足了刚度要求。

Structural Optimum Design about the Radial Bogie and Optimum Algorithm of I-DEAS

It is known that the loading state of the radial bogie of tilting train the first in China is complex as well as its structure. In this paper, first the optimum algorithm of famous I-DEAS software was discussed then the frame of radial bogie of tilting train was optimized. In the optimum design model not only the stress restraints but also the displac ment retraints and design variables limits have been put in. results of the frame of radial bogie of tilting train is very good not only the local stress centralization has been reduced but also the stiffness requirement has been met.