高层筒中筒结构协同分析的状态空间法

State Space Metod for Cooperating Analysis of Tube-in-Tube Structure

将状态空间方法引入筒中筒结构的协同分析中,在结构连续化假定的基础上,建立起结构的状态空间方程.即采用连续化模型,用空间坐标模拟时间坐标,导出筒中筒结构协同分析的状态空间表达式,进而用精细积分法求出问题的高精度数值解.提出一套分析筒中筒结构协同工作的方法,对筒中筒结构进行协同计算,将所要解决的边值问题转化为初值问题,进而用Matlab编程求解.最后,通过实例给予验证.

The state space method in modern control theory is used for the cooperative analysis of the tube-in-tube structure. Based on the assumption of the structure continuum, the state space equations are established. The high accuracy numerical solutions of the equations are obtained using the precise integration method. A new simple and convenient method for the cooperative analysis of the tube^in-tube structures with variable cross section is proposed. The established computer program can analyze preliminarily these structures, and can also determine the rational plan of the structures and design the structures, which is examined by the practical engineering.