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Carbon Fiber Reinforced Polymer (CFRP) is a kind of common composite materials which are widely used in aviation and aerospace fields. CFRP materials possess excellent specific strength but worse electric conductivity than traditional metallic materials, which may easily be damaged by lightning strikes. Therefore, to fulfill the safety requirements of aircrafts in lightning environment, experimental...
ESE is a new type of lightning protection device which is claimed to have an excellent lightning protection performance by injecting current to generate a lightning leader. In this paper a comparative method is applied to test ESE lightning protection performance. Rod-Rod discharge electrodes are used to simulated lightning discharge and attachment. The upper rod is worked as downward lightning leader...
Lightning is one of the most serious atmospheric hazards to aircrafts. Few methods can be employed for the lightning protection of the aircrafts constructed with nonconducting soft shells. This paper presents a novel Lightweight lightning-protection cable for the lightning protection of the aircrafts constructed with soft shells. This kind of lightning-protection cable was fabricated by covering metallic...
The lightning protection performance of the carbon fiber composite (CFC) main rotor blade of a helicopter is studied by using high-voltage large-current generators. According to the lightning zoning of this helicopter, the blade tip of the main rotor blade was considered belonging to lightning Zone 1A, the blade airfoil part and the blade root of main rotor blade were considered belonging to lightning...
Mode frequency shifts and Q-factor changes in 2D microflower cavity and its deformed cavity are analyzed. The effective mode-splitting of double-degenerate WG modes is obtained and the Q-factor changes of matched and mismatched modes are discussed for the microflower cavity. The Q-factor stability of the splitted WGH (8,1) modes due to two types of local deformations is studied, showing that...
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