【摘要】 采用一种直线单元的非线性有限元法 ,建立了增量形式的索杆混合体系的静、动力平衡方程 ,并用Newton Raphson法求解了增量静力平衡方程 ,用Newmark β法直接积分了增量动力平衡方程 .以此为基础 ,分析了江阴的50 0kV输电线路中的一座拉线式塔的动力特性更多还原

【Abstract】 Using nonlinear finite element method with a type of st raight element,the static and dynamic increment equilibrium equations of cable- strut system are obtained.The former is solved by Newton-Raphson method and the latter is directly integrated by using Newmark-β method.Based on the discussi on above,a 500 kV guyed transmission tower in Jiangyin is analyzed.更多还原