关键词: 碳纤维复合材料, 电热除冰, 多层材料结构, 物性测试, 实验研究, 除冰验证装置

Abstract: Based on the research status of the electro-thermal deicing technique for the carbon fiber composite airfoil, a multi-materials structure was proposed. The deicer pad consists of multi-materials, and each kind of material is with specific thermal properties. A part of these materials were manufactured in the laboratory based on the property requirements. The finite volume method was adopted to simulate the performance of deicing pad, and the proper thickness of the insulation layer was determined. Through the numerical simulation the uniformity of the heating circuit was also verified. According to the scheme an electro-thermal deicer pad was developed, and a deicing validation device was designed and adopted to carry out experimental study on the performance of the deicer pad. The influence rules of heat flux and airflow velocity and angle between airflow and deicing surface on the deicing performance were obtained. The study shows that the electro-thermal deicer pad is provided with good deicing performance, and the deicing scheme is feasible.

Key words: carbon fiber composite, electro-thermal deicing, multi-materials structure, physical properties measurement, experimental study, deicing validation device