电脉冲除冰系统除冰激励的仿真研究  

Simulation of Deicing Excitation of Electro-impulse Deicing System

作　　者：李清英[1] 白天[1] 朱春玲[1] 

机构地区：[1]南京航空航天大学航空宇航学院,南京210016

出　　处：《系统仿真学报》2011年第12期2799-2804,共6页Journal of System Simulation

基　　金：国家自然科学基金(10972106)

摘　　要：建立了电脉冲除冰实验系统的二维电磁涡流场分析模型,提出了数值计算后处理求解试验蒙皮表面除冰激励分布的方法,并利用有限元动力分析方法建立了试验蒙皮的三维动力分析模型,通过在模型上加载后处理所得的表面瞬态压力,仿真获得了试验蒙皮的响应加速度,最后引入加速度实验用以验证模拟值。结果表明,基于二维电磁涡流场数值计算后处理求解除冰激励与有限元动力分析试验蒙皮的方法,所得的加速度与实验测量值吻合较好,因此说明了所述方法的正确性,可为电脉冲除冰系统的冰层破坏分析奠定基础。A two-dimensional electromagnetic eddy current field analysis model of the experimental electro-impulse deicing system was developed.A numerical post-processing method was proposed to simulate the deicing excitation exerting on the testing skin.Moreover,a three-dimensional dynamic analysis model of the testing skin was built based on the dynamic finite element method.The accelerations were calculated by loading the transient pressure to the skin model.Then,the acceleration experiment was introduced to verify the simulation results.It is obtained that the numerical acceleration values agree well with the experimental data,which indicates that it is feasible for the deicing excitation to use the method of post-processing pressure distribution and the method of the dynamic finite elements of the testing skin.The presented methods provide a solid basis for the ice failure analysis of the electro-impulse deicing system.

关 键 词：电脉冲除冰系统 电磁涡流场 除冰激励 压力分布 加速度 

分 类 号：V244.15[航空宇航科学与技术—飞行器设计]