A Health Assessment Method of Avionics Equipment

With the popularization of aircraft digitization, PHM (prognosis and health management) of avionics equipment is becoming increasingly important. Due to the difficulty in collecting performance parameters for avionics equipment, we propose a new method, which achieves component-level health assessment based on fault risk. In response to the issue of assessment weight dilution in the system, considering the impact of serial and parallel structures on system functionality, an improved health assessment method based on reliability logic was proposed to achieve system-level health assessment. And then, based on the above, we integrated a health assessment algorithm for avionics equipment. Through example Analysis, the methodology proposed in this paper can effectively evaluate the health status of the avionics equipment population. The analytical health calculation method proposed in this article has a fast calculation speed, which is easily deployed onboard health assessment systems and enhances the health management capabilities of avionics equipment.