Validation and Sensitivity Analysis of Temperature Distribution in Aircraft Air Management System Valve Structures

This study addresses the issue of structural temperature distribution in the design of air management system valves and actuators for civil aviation aircraft. A structural analysis model utilizing equivalent convective heat transfer coefficients was developed to evaluate temperature distribution. Transient simulations and experimental validations were performed to investigate the temperature distribution in the valve and actuator. Sensitivity analyses were conducted to assess the impact of environmental temperature, internal airflow temperature, and flow rate on the temperature distribution. The results reveal that the temperature of the actuator surface is more significantly affected by environmental temperature than by the internal fluid temperature of the valve.