双层0.618法在某力学问题中的应用

Application of Double 0.618 Method on One Mechanical Problem

建立了一组平行移动荷载作用下,简支桥梁挠度的数学模型;利用双层0.618法搜索梁的绝对最大挠度对应的最危险截面位置以及移动荷载最不利位置,计算该位置相应的挠度得到梁的绝对最大挠度.本文算法以计算机为工具,适用于任意有限多个平行移动荷载,对于桥梁的设计计算与安全评估,有一定的实用价值.

The mathematical model of deflection on simply supported beam acted by any finite parallel moving loads was given in this article. Double 0, 618 method was used to search the most dangerous section and the worst load position, The absolute maximum deflection was got by calculating the corresponding deflection. By using computer, the method can he used to any finite parallel moving loads, so it is very useful to bridge design and safety evaluation.