【作者】 杜骞；

【导师】 朱春玲；

【作者基本信息】 南京航空航天大学 ， 人机与环境工程， 2009， 硕士

【摘要】 飞机电脉冲除冰是利用高压电容器向脉冲线圈瞬间放电,在线圈周围建立起快速形成并迅速衰减的磁场,金属蒙皮内将出现涡流,产生一类似“锤击”的脉冲作用力,使冰破裂、脱离蒙皮并弹走。电脉冲除冰的显著特点是低能耗、高可靠性且几乎不需进行维护。本文着重围绕电脉冲除冰系统设计制作展开研究,选择利用地面除冰试验来检验自制电脉冲除冰系统除冰效果的方案。自行设计制造出电脉冲除冰系统样机一套,其中包括非金属板的设计制作、脉冲线圈的绕制、充电电容器及快速晶闸管的选择、固定安装架的设计制作、控制箱制作及试验系统电路图设计等细节;搭建成地面电脉冲除冰试验台一个,通过试验测量出电容器放电瞬间脉冲线圈中产生的峰值电流和试验蒙皮上出现的振动加速度峰值,得出了放电电压与峰值电流之间的关系曲线、放电电压与振动加速度峰值之间的关系图像;建立了电脉冲除冰系统瞬间放电理想二阶RLC振荡回路模型,通过进行Matlab仿真,得出峰值电流随线圈电感、线圈电阻及时间的变化关系曲线;利用Visual C++编写了电脉冲除冰电气参数计算程序,并制作出相应的计算软件;通过人工结冰试验验证了电脉冲除冰方法的可行性,并为试验研究的深入进行提出展望。更多还原

【Abstract】 De-icing of aircraft by using electro-impulse is accomplished by rapidly discharging high voltage capacitor into a wire coil rigidly supported just insided the aircraft skin.The discharge of capacitor through the impulse coil creates a rapidly forming and collapsing electro-magnetic field which induces eddy currents in the skin and creates a repulsive force resulting in a hammer-like force which cracks,debonds and expels ice on the skin surface. The promised advantages are very low engery,high reliability of de-icing and low maintenance.This paper mainly focuses on the design of electro-impulse de-icing (EIDI) system, verifying the de-icing effect of a self-made electro-impulse de-icing system by several ground tests. The author managed to design and make a set of components of the electro-impulse de-icing system, including the non-metallic plate, the impulse coil, the choice of capacitor and fast thyristor, the fixed mount of the coil, a power supply-and-control box and the circuit diagram. A ground EIDI test-bed was built. In the test the peak current in the coil and the vibration peak acceleration on the skin could be got when the capacitor discharged. Then can get. the“discharge voltage-peak current”diagram and the“discharge voltage-vibration peak acceleration”diagram.The ideal second-order R-L-C current model of the EIDI system was built, and simulated the peak current changing with the coil inductor, coil resistance and time by using Matlab. The calculation program of the electrical parameters of the EIDI system has been completed with Visual C++, and corresponding software has been set up.Through the artificial icing test, it has been proved that the EIDI method is feasible and reliable.At last, based on the research conclusion , some prospect for further study on the test are given.更多还原