飞机客舱的屏蔽效能研究

A evaluation research of the shielding effectivenes for the aircraft cabin

功率平衡法的网络化公式是以电磁拓扑学和统计电磁学为基础而发展起来的一种电大尺寸系统电磁效应的系统级评估方法。利用全波仿真的方法验证了功率平衡法的可行性,在此基础上,对波音747-8客舱的品质因数和屏蔽效能进行了评估。该方法具有快速便捷和适用范围广的特点。

Based on electromagnetic topology and statistical concepts, Power Balance （PWB） method is used to estimate the magnitude of electromagnetic energy in electrically large system under high-frequency interference. The comparison of results obtained from PWB method and full-wave analysis method shows that PWB method can indeed provide effective data that meets certain accuracy requirement. This article uses PWB method to evaluate mean quality factor and the shielding effectivenes of the the Boeing 747-8.Comparison with the full-wave analysis method proves that this method has advantage of convenient and fast and has wide range of usage scenario.