中文摘要：

摘要：为了抑制输电线在运行过程中的舞动，将多个弹簧振子通过间隔棒等周期安装于输电线上，设计出了一种具有声子晶体带隙特性的导线结构。建立了有限长振子导线有限元模型，并对其传输特性进行了测试，证明了该类导线带隙特性的存在。通过改变弹簧振子的自振频率，发现了弹簧振子自振频率决定了带隙所处的频率段。通过改变弹簧振子的数量和质量，分析了导线系统在不同参数下的减振效果，发现弹簧振子的数量和质量对减振效果有显著影响。

英文摘要：

In order to prevent the gallop of transmission lines, muhiple spring oscillators were installed on the spacers at equal period. A line structure with band gaps was designed. A finite element model of the finite line with spring oscillators was built and the transmission characteristic was tested. The results prove the existence of band gaps. A result was worked out by altering the natural frequency of a spring oscillator and it indicates that the natural frequencies of spring oscillators decide the frequency range of band gaps. The damping effect of lines was analyzed by changing the number of spring oscillators and mass. The results indicate that the number of springs and mass remarkably affect the damping effect.