Title of Paper:A study on optimal control of the aero-propulsion system acceleration process under the supersonic state

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Affiliation of Author(s):能源与动力学院

Journal:CHINESE JOURNAL OF AERONAUTICS

Key Words:Acceleration control Inlet control design Inlet and engine cooperative working Optimal control

Abstract:In order to solve the aero-propulsion system acceleration optimal problem, the necessity of inlet control is discussed, and a fully new aero-propulsion system acceleration process control design including the inlet, engine, and nozzle is proposed in this paper. In the proposed propulsion system control scheme, the inlet, engine, and nozzle are simultaneously adjusted through the FSQP method. In order to implement the control scheme design, an aero-propulsion system component-level model is built to simulate the inlet working performance and the matching problems between the inlet and engine. Meanwhile, a stabilizing inlet control scheme is designed to solve the inlet control problems. In optimal control of the aero-propulsion system acceleration process, the inlet is an emphasized control unit in the optimal acceleration control system. Two inlet control patterns are discussed in the simulation. The simulation results prove that by taking the inlet ramp angle as an active control variable instead of being modulated passively, acceleration performance could be obviously enhanced. Acceleration objectives could be obtained with a faster acceleration time by 5%. (C) 2017 Production and hosting by Elsevier Ltd.

ISSN No.:1000-9361

Translation or Not:no

Date of Publication:2017-04-01

Co-author:Sun Fengyong,Du Yao

Correspondence Author:zhb