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本文讨论工程结构动力响应最优化设计问题,即利用最优化方法选择结构参效,使结构对于干扰的反应最大或最小,以满足工程上的需要。在动力响应的计算上,本文利用傅立叶变换将振动微分方程转化成复代数方程,然后求解复线性代数方程得到系统的动力响应。与通常采用的模态迭加法比较,本文的方法简便,迅速。在最优化计算上,本文采用了单纯形法。本文提供了杆系结构在位移激振和力激振两种情况下的动力响应计算机程序,并对YZS0.6型手扶振动式压路机扶手的结构参数进行了最优化选择.
This paper discusses the optimal design of the dynamic response of the engineering structure, that is, the use of the optimization method to select the structural effect, so that the response of the structure to the interference is the largest or the smallest to meet the engineering needs. In the calculation of dynamic response, this paper uses the Fourier transform to transform the vibration differential equation into a complex algebraic equation. Then the complex linear algebraic equation is solved to obtain the dynamic response of the system. Compared with the commonly used modal superposition method, the method in this paper is simple and rapid. For the optimization calculation, the simplex method is used in this paper. This paper provides a computer program for dynamic response of the pole structure under both displacement excitation and force excitation, and optimizes the structural parameters of the handrail type YZS0.6 hand-held vibratory roller.