基于能量平衡法的阻尼线防振性能分析

Analysis of Vibration Resistance of Damping Line Based on Energy Balance Method

针对当前阻尼线防振性能分析方法存在计算的输电导线振幅误差较大问题,设计一种新的基于能量平衡法的阻尼线防振性能分析方法。分析能量平衡法中风能能量输入、自阻尼能量消耗以及阻尼线能量消耗要素,并对其优化。根据输电导线、实际工况以及阻尼线的自身性质,重组和简化计算公式。设计实验装置以及实验工况,得到不同张力和激振频率下传统方法和所设计方法的导线振幅计算结果。实验结果表明,所设计方法得到的结果与理想理论值更接近,验证了所设计方法具有更强的应用性能。

In order to solve the problem that the amplitude error of transmission wire is large in the current analysis method of damping wire vibration resistance performance,a new analysis method of damping wire vibration resistance performance based on energy balance method is designed.The wind energy input,self-damping energy consumption and damping line energy consumption in energy balance method are analyzed and optimized.The formulas are reorganized and simplified according to transmission wires,actual working conditions and the properties of damper wires.The experimental equipment and experimental conditions are designed to obtain the calculation results of wire amplitudes of the traditional method and the designed method under different tension and excitation frequencies.The experimental results show that the results obtained by the designed method are closer to the ideal theoretical value,which verifies that the designed method has stronger application performance.