Modeling and Sensitivity Analysis of a Servohydraulic Pump

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Movahedi, Hamid Reza | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44104 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Kazemzadeh Hannani, Siamak; Saadat Foumani, Mahmoud
Abstract:
Servo hydraulic pumps are being utilized in hydraulic circuits to prevent hydraulic oil reaching high temperatures in result of relief valve’s functions. In this study, we focus on modeling and sensitivity analysis of a pump of this kind. At first the importance of the current study and some of related studies has been discussed and some of the appropriate results has been represented. Then by employing CFD and Fluent code, the flow around servo valve of pump has been simulated, and operational curve of the valve has been calculated. This curve has been verified by results of the experimental set. At the next stage of the study, by modeling Dynamic parts of the pump in SIMULINK software and operational curve of the servo valve, P-Q curve of the pump has been reached. Then by changing physical characteristics of the pump, sensitivity of the P-Q curve related to those characteristics has been represented
Keywords:
Sensitivity Analysis ; Simulation ; Variable Displacement ; Servohydraulic Valve ; Servo Hydrauliz Pump

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