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Acta Aeronautica et Astronautica Sinica ›› 2025, Vol. 46 ›› Issue (16): 331685.doi: 10.7527/S1000-6893.2025.31685

• Electronics and Electrical Engineering and Control • Previous Articles    

Electrical characteristics analysis of composite aircraft electrical structure network system

Zhangang YANG1,2, Yuhao WEI1, Juan YANG3()   

  1. 1.College of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China
    2.Tianjin Aviation Equipment Safety and Airworthiness Technology Innovation Center,Tianjin 300300,China
    3.Engineering Techniques Training Center,Civil Aviation University of China,Tianjin 300300,China
  • Received:2024-12-19 Revised:2025-01-03 Accepted:2025-02-19 Online:2025-03-25 Published:2025-02-25
  • Contact: Juan YANG E-mail:haishi_yj11@126.com
  • Supported by:
    Open Fund of Tianjin Aviation Equipment Safety and Airworthiness Technology Innovation Center(JCZX-2023-KF-06)

Abstract:

The high resistivity of composite materials affects the original conductive path of the aircraft. To ensure the normal operation of the aircraft electrical system, it is necessary to construct a composite aircraft electrical structure network system model to explore its electrical characteristics. Firstly, to address the calculation of the electrical characteristics of the electrical structure network under electromagnetic field, the finite element method and the stable double conjugate gradient method are adopted to jointly construct the electrical structure network system model, achieving a computational consumption reduction of 63.92% compared to Partial Element Equivalent Circuit (PEEC) method. Secondly, by exploring the combination of multi-type excitation sources/multi-area access points, the multi-dimensional electrical results and performance impacts, such as area impedance characteristics, potential distribution profiles, and current density vectors, are analyzed. By constructing and measuring the physical model, the difference between the measured and simulated results is analyzed, and the compliance with the airworthiness regulation HB 6129 is verified. Finally, based on the actual working condition perspective and airworthiness regulation, contact factor system error analysis, refined ideal model analysis and component stress factor analysis of the system model are conducted. The obtained results and analyses are of great significance for the construction of electrical structure network of composite/electric aircraft.

Key words: composite aircraft, electrical structure network, electrical characteristics analysis, contact resistance, Biconjugate Gradient Stabilized Method (BICGSTAB)

CLC Number: