Plenum Pressure Controller Design for a Specific Supersonic Wind Tunnel Using ANFIS and Fuzzy Logic
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 443
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شناسه ملی سند علمی:
METEC01_006
تاریخ نمایه سازی: 21 دی 1398
چکیده مقاله:
In this paper, an intelligent pressure controller for a specific Blowdown Supersonic Wind Tunnels (BSWTs) based on fuzzy logic with the aim of achieving the accurate and acceptable results is presented. The quality of the proposed Fuzzy Logic Controller (FLC) can be drastically affected by the choice of membership functions domains. Thus, optimal methods for designing the FLC are needed. Adaptive Neuro-Fuzzy Inference System (ANFIS) is used in a novel way to solve the problem of designing the membership function for the FLC output or control valve opening. In this way, firstly, the nonlinear mathematical model of the special BSWT consisting of a set of ordinary differential and algebraic equation that derived from mass and energy conservation equations is developed in Matlab/Simulink. Secondly, an ANFIS network is used as an inverse model of the tunnel for finding the optimum membership functions of the FLC output. This optimal method can help for reasonable system recognition. Finally, the simulation results based on the wind tunnel operational map and experimental verifications for a Mach 3 blowdown run are presented. The results demonstrate the accuracy and robustness of the wind tunnel simulator model and its FLC system. The optimal design of the pressure controller is caused to achieve a minimal transient run time (less than 1 sec).
کلیدواژه ها:
Supersonic wind tunnel ، optimal design ، inverse model ، adaptive neuro-fuzzy inference system ، plenum pressure control.
نویسندگان
Mohammad Salehabadi
PhD Candidate, Mechanical & Aerospace Engineering Department, Malek-Ashtar University of Technology (MUT), Isfahan, Iran.
Amin Nazarian Sh
PhD Candidate, Mechanical & Aerospace Engineering Department, Malek-Ashtar University of Technology (MUT), Isfahan, Iran.
M. Dehghan M
Associate Professor of Mechanical & Aerospace Engineering Department, Malek-Ashtar University of (MUT) Technology, Isfahan, Iran.