Research on the Airworthiness Verification Method of HIRF Protection for the CCAR23 Aircraft

Abstract

In order to obtain the operating permit in the high-intensity radiation field (HIRF) 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 issued by airworthiness authorities. Currently, the internal HIRF environment of aircraft is determined mainly through test methods and similarity assessment method, which has the defects of large working amount and high test cost. The data estimation method is firstly used to determine the internal environment level of HIRF for the CCAR23 aircraft with only category A display system, so as to realize the airworthiness verification of HIRF protection for the whole aircraft. A set of airworthiness verification method suitable for CCAR23 aircraft HIRF protection is proposed, and its key technology and feasibility of this method are analyzed. The proposed method is applied to the practical enginee-ring of Y12F aircraft HIRF protection airworthiness verification, which can effectively reduce the complexity of the whole aircraft protection airworthiness verification, save the test cost and improve the test efficiency, and provide the reference for HIRF protection verification of civil aircraft.

Keywords

• high energy electromagnetic radiation field
• ccar23
• civil aircraft
• hirf protection verification