水平对数周期天线振子杆裹冰模拟试验

Simulation test of oscillating rod of horizontal logarithm period antenna under wrap ice

为研究水平对数周期天线振子杆的抗裹冰能力,以某地区天线的振子杆为研究对像,进行了裹冰模拟试验和仿真分析。结果表明,改进设计后振子杆无损坏,可满足重裹冰区的裹冰要求。试验数据同时还验证了理论分析结果的可使用性,两者的变化趋势一致,振子杆最大节点位移出现在工况二下第4节末端为347.55 mm,与仿真结果相对误差为5.87%。表明在条件不允许做试验的情况下,可通过仿真代替试验指导设计,该方法方便快捷经济。

To research the level of log-periodic oscillating element rod anti-wrapped ice ability,the simulation test and simulation analysis on the image of the antenna in a certain area was carried out.The analysis results show that the improved design can avoid the damage of oscillating rod,which can meet the requirements of the heavy ice wrapped ice. Experimental data also confirm the theoretical analysis results can be used,both trends are the same. The maximum node displacement of the oscillating rod is 347. 55 mm at the end of the 4 section of the second working condition,and the relative error of the simulation results is 5. 87%. The above data shows that,instead of the field test,simulation test and analysis can guide the design,which is convenient and economical method.