An important design indicator of aircraft hydraulic system is to meet the load flow demand in full flight profile scenes. This paper introduces a digital simulation analysis method of load flow demand for aircraft hydraulic system. According to the actual structure of the hydraulic system, mathematical models are developed to build the load subsystem model of the hydraulic energy subsystem and the hydraulic users. And then the simulation analysis of the load flow requirements of hydraulic system was carried out under typical flight profiles. The dynamic process of the aircraft hydraulic system is simulated, which can reflect the coupling dynamic characteristics between the aircraft hydraulic system and the hydraulic user load.The simulation results show that the hydraulic system model meets the requirements of hydraulic system analysis and can be used for hydraulic system design support.
[1] FRITZSON P. Principles of objectoriented modeling and simulation with Modelica 2.1[M].[S.l.]: John Wiley & Sons, 2010.
[2] ALLEN L D.Evolution of flight simulation[C]//AIAA Flight Simulation Technologies Conference, Monterey:AIAA,1993.
[3] ALDEN R E. Flight demonstration, evaluation and proposed applications for various all electric flight control actuation system concepts[C]// AIAA/AHS/ASEE Aerospace Design Conference,Irvine:AIAA,1993.
[4] SAEID H, GOLDENBERG A.Design of a new high performance electrohydraulic actuator[J]IEEE/ASME Transactions on Mechatronics,2000,5(2):158164.
[5] LANDI A, ANICHOLSON M.Guidelines for Development of Civil Aircraft and Systems[C]//Aerospace Technology Conference and Exposition,Seattle Washington:SAE International, 2011.
[6] WANG Z M, TAN S K. Vibration and pressure fluctuation in a flexible hydraulic power system on an aircraft[J]. Computers and Fluids, 1998,27(1):19.
[7] GILLESPIE A J, HANDLLEY S J. Development of a realtime simulation of a Vstol aircraft[J]. Aeronautical Journal,1996,100(999):397405.
相似文献
引证文献
引用本文
吴双.民用飞机液压系统建模与负载流量需求计算的研究[J].民用飞机设计与研 究,2018(3):WU Shuang. Research on Modeling and the Load Flow Demand Analysis for Hydraulic System of Civil Aircraft[J]. Civil Aircraft Design and Research,2018,(3). ( in Chinese)