Enhancing Temperature Adaptability for Airborne Equipment in Non-Pressurized Cabin: A Methodological Investigation

This study proposes a method to improve the temperature adaptability of aircraft equipment in non-pressurized cabin. The focus is on resolving issues related to Non-Low Temperature Resistant Components in the drag cone retractable system. The study aims to design a heating and thermal insulation method for the equipment in non-pressurized airplane cabin. To achieve precise temperature control, this study shows the feasibility of using heating cables as heating elements. The controllability of these cables at elevated temperatures is highlighted. The minimum power demand of the heating components is ascertained using the thermal simulation software ICEPAK. Additionally, an advanced control algorithm is developed that utilizes an improved BP neural network and a traditional PID combination. Extensive simulations in MATLAB/Simulink demonstrate that the combined control system outperforms traditional PID alone. Experimental validation confirms high efficacy of the proposed system in stabilizing equipment temperature within non-pressurized cabin, ensuring it operates consistently at optimal working temperatures. Consequently, this method proposed in this paper significantly enhances the environmental adaptability of equipment within the non-pressurized cabin of aircraft.