An estimation method of the fluid temperature for commercial aircraft hydraulic systems

This paper introduces an estimation method of the fluid temperature of commercial aircraft hydraulic systems. The hydraulic systems of aircraft are subjected to be investigated. Under this method, the average temperature of the fluid in the reservoir is calculated according to the flight profile. The calculating results are coincided with the actual values and reveal the varying tendency of the fluid temperature in the reservoir. This method provides a quick approach to the thermal management of the commercial aircraft hydraulic systems.