【摘要】 本文通过对桅杆结构中纤绳及杆身的非线性分析，建立了桅杆结构空间自由振动方程，应用子空间迭代法可求得任意个低阶振型和频率。对不同风向及不同纤绳初拉力下桅杆结构的动力特性进行分析，与试验研究比较表明，理论计算结果与试验结果吻合良好。更多还原

【Abstract】 In this paper the formula for calculating the free vibration of guyed mast has been presented through its nonlinear dynamic analysis. The Sub-space iterate method is used to find arbitrary numbers of lower modes and frequencies, and the influnce of initial cable stresses and wind directions on dynamic characteristic of guyed mast is analyzed. The results of the theory and the experiment agree satisfactorily.更多还原