CCAR23部飞机HIRF防护适航验证方法研究

民用飞机为获得在高强辐射场环境中的运营许可,必须按照适航当局发布的高能电磁辐射场( HIRF )防护相关适航条款进行防护设计和适航验证。当前确定航空器内部 HIRF 环境主要通过试验方法和相似性评估法,具有工作量大、测试成本高等缺点。针对仅有 A 类显示系统的 CCAR23 部飞机首次使用数据推算方法,确定飞机内部 HIRF 环境电平,用于实现整机的 HIRF 防护适航验证;提出一套适用于 CCAR23 部飞机 HIRF防护适航验证的方法,分析该方法的关键技术及可行性。本文所提出的方法已应用于 Y12F 飞机 HIRF 防护适航验证的实际工程,有效降低了整机 HIRF 防护适航验证的复杂程度,节约了整机试验所需的测试成本,提高了试验效率,为民用航空器 HIRF 防护验证提供参考。

Research on the Airworthiness Verification Method of HIRF Protectionfor the CCAR 23 Part Aircraft

In order to obtain the operating permit in the high-intensity radiation field environment, the civil aircraft must carry out the protection design and airworthiness verification in accordance with the airworthiness provisions related to the protection of high-intensity radiation field (HIRF) issued by airworthiness authorities. Currently, the internal HIRF environment of aircraft is determined mainly through test methods and similarity assessment method. In this paper, for the first time, the data estimation method is used to determine the internal environment level of HIRF for the 23 part aircraft with only class a display system, so as to realize the airworthiness verification of HIRF protection for the whole aircraft. The key technology and feasibility of this method are discussed, which provides reference for the protection verification of civil aircraft HIRF. The method proposed in this paper has been applied to the practical engineering of Y12F aircraft HIRF protection airworthiness verification, which effectively reduces the complexity of the whole machine protection airworthiness verification. The method saves the test cost and improves the test efficiency.