混合遗传算法在桁架优化中的应用

APPLICATION OF A HYBRID GENETIC ALGORITHM IN OPTIMIZATION DESIGN OF TRUSS STRUCTURE

应用遗传算法,并对基本遗传算法进行相应的改进,对空间桁架结构截面进行优化。在应用遗传算法的同时,考虑满应力解通常处在最优解附近的原理,将满应力解作为种群中的一个个体参与计算,并通过MATLAB编制相应的程序实现。算例表明,该方法能得到理想效果,并减少程序运算时间。

A method based on modified genetic algorithm(GA) is developed for the optimum design of space truss structureThe full stress solution is added to the GA method considering the principle that the full stress solution is near by the optimal oneA space truss structure MATLAB program was designed based on this methodThe example shows that the method can get ideal results and reduce the operation time