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Mar 27, 2023
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ME 472 - Modeling and Simulation in the Design of Hydraulic Components2 lecture hours 2 lab hours 3 credits
Course Description
This course focuses on the continued development of analytical methods as applied to hydraulic components and circuits. Steady-state and limited transient performance of pumps, valves, accumulators, motors, and cylinders as components and systems are addressed (i.e. functional, steady state and dynamic). Linear and non-linear models for pumps, motors, and valves are also developed and applied to systems analysis. Laboratory sessions are included to relate model predictions to actual component performance. Use of Matlab/Simulink for model development is stressed. (prereq: ME 471 )
Course Learning Outcomes
Upon successful completion of this course, the student will be able to:
- Linearize equations to develop linear models
- Develop steady state models of pumps and valves
- Develop dynamic models of the pumps and valves
- Combine component models to form system models
- Solve the developed models to determine pressure and flow responses in hydraulic circuits
Prerequisites by Topic
Course Topics
- Introduction to modeling and simulation (1 class)
- Linearization of equations (1 class)
- Effective bulk modulus and dynamic continuity (1 class)
- Steady state modeling of pumps (2 classes)
- Steady state modeling of pressure and flow control valves (2 classes)
- Steady state modeling of direction valves (4 classes)
- Dynamic modeling of hydraulic pumps (1 class)
- Dynamic modeling of pressure control valves (1 class)
- Dynamic modeling of directional control valves (2 classes)
- Dynamic modeling of hydraulic accumulators (1 class)
- Review and testing (4 + comprehensive final exam) (5 classes)
- Literature paper review, analysis and presentation (2 classes)
Laboratory Topics
- Steady state model of an axial piston pump, relief valve, and directional control valve
- Dynamic model of an axial piston pump, pressure compensated
- Dynamic modeling of hydraulic cylinder cushions
- Modeling the effects of fluid compressibility, air entrainment and mechanical compliance on effective fluid bulk modulus
- Dynamic response of a hydraulic cylinder and directional control valve subjected to an overrunning load
- Steady state performance of proportional valve correlated to a linear valve model
Coordinator
John Pakkala
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