ME 625 Mechanical Design of Internal Combustion Engines
ME 625 Mechanical Design of Internal Combustion Engines (3). Prerequisites: ME 310, ME 380, and ME 442, or equivalents. Principles and procedures for the mechanical design of internal combustion engine components and systems for strength, endurance, and optimal performance. Design projects and computer applications are emphasized.
Prerequisites by Topic
Computer solid modeling and finite element analysis.
Machine component design.
C.F. Taylor, The Internal Combustion Engine in Theory and Practice, Volumes 1 and 2, 2nd edition, MIT Press, 1984.
R. Stone, Introduction to Internal Combustion Engines,
3rd edition, Palgrave Macmillan, 1999.
T. Monroe, Engine Builder's Handbook, HP Books, 1996.
K.W. Stinson, Diesel Engineering Handbook, 12th
G. Prater, Professor of Mechanical Engineering.
Course Learning Outcomes
This course provides graduate-level mechanical engineering students with a working knowledge of the functional principles, subsystems, and physical components associated with internal combustion engines used in a wide range of applications (automotive, marine, stationery power generation, low-power utility equipment, etc.). Two-stroke and four-stroke, spark-ignited and compression-ignited engines are covered. Students learn to design the subsystems and components of such engines for use in stand-alone applications, and as part of hybrid powertrains. Design projects are emphasized, and CAE software packages are used extensively.
Introduction to internal combustion engines: classification, operating principles, system identification (2 classes).
Power train design: pressure, friction, and inertia forces. Balancing schemes, vibration control, mounting systems (5 classes).
Power train component design: crankshafts, connecting rods, pistons, cylinders, frames, bearings (5 classes).
Valve train design: operational and performance considerations (3 classes).
Valve train design: dynamic considerations, cam profile optimization, valve train component design (3 classes).
Mechanical and turbo supercharging. Acoustic tuning of induction and exhaust systems (3 classes).
Engine characteristics, similitude (2 classes).
Effects of engine architecture and component configurations on fuel requirements. Fuel characterization, knock due to auto-ignition or ignition delay and exhaust emissions. Alternative fuels (3 classes).
Fuel metering systems (3 classes).
Ignition systems (3 classes).
Cooling systems (2 classes).
Special design requirements for compression ignition engines (3 classes).
Internal combustion engines in hybrid powertrains (2 classes).
Design project (1 class).
Examinations (2 classes).
MATLAB is used for eigenproblem solutions associated with torsional crankshaft vibration, valve train response, and engine mount optimization. Proprietary engine simulation software is used for conducting engine optimization studies. Solid modeling and finite element packages are used for component detail design.
Three 50 minute sessions per week devoted to lecture, discussion, and design/analysis problem solving.
Homework assignments (8) - 15%; midterm examinations (2) - 30%; design projects (2) - 40%; final exam - 15%.
Curriculum Criterion Contribution
Engineering design: 2 credits, engineering science, 1 credit.
Relationship to Program Outcomes
This course supports Mechanical Engineering academic program objectives by developing:
An ability to apply knowledge of mathematics, science, and engineering in the field of mechanical engineering.
An ability to design a system, component, or process to meet desired needs in the field of mechanical engineering.
An ability to identify, formulate and solve problems in the field of mechanical engineering.
A recognition of the need for, and an ability to engage in, life-long learning in the field of mechanical engineering.
An ability to use the techniques, skills, and modern tools necessary for the practice of mechanical engineering.