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ME 611 Mechanical Design of Internal Combustion Engines


Catalog Description

ME 610 Mechanical Design of Internal Combustion Engines (3). Prerequisites: ME 442 and ME 310. 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

  1. Thermodynamics
  2. Computer solid modeling and finite element analysis
  3. Machine component design

Textbook

C.F. Taylor, The Internal Combustion Engine in Theory and Practice, Volumes 1 and 2, Second Edition, M.I.T. Press, 1984.

References

  1. R. Stone, Introduction to Internal Combustion Engines, Third Edition, Palgrave Macmillan, 1999.
  2. J. Heywood, Internal Combustion Engine Fundamentals, Second Edition, McGraw-Hill College, 1984.
  3. T. Monroe, Engine Builder's Handbook, HPBooks, 1996.
  4. K.W. Stinson, Diesel Engineering Handbook, 12th Edition, 1980.

Coordinator

G. Prater, Professor of Mechanical Engineering.

Course Objectives

This course provides senior undergraduate and graduate 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 as design tools.

Topics

  1. Introduction to internal combustion engines: classification, operating principles, system identification (5 50 minute classes)
  2. Power train design: pressure, friction, and inertia forces. Balancing schemes, vibration control, mounting systems (4 classes)
  3. Power train component design: crankshafts, connecting rods, pistons, cylinders, frames, bearings (5 classes)
  4. Valve train design: operational and performance considerations (1 classes)
  5. Valve train design: dynamic considerations, cam profile optimization, valve train component design (6 classes)
  6. Mechanical and turbo supercharging. Acoustic tuning of induction and exhaust systems (3 classes)
  7. Engine characteristics, similitude (2 classes)
  8. Effects of engine architecture and component configurations on fuel requirements. Fuel characterization, knock due to auto-ignition or ignition delay, exhaust emissions (5 classes)
  9. Fuel metering systems (4 classes)
  10. Ignition systems (4 classes)
  11. Cooling systems (3 classes)
  12. Special design requirements for compression ignition engines.
  13. Design projects (2 classes)
  14. Tests and final examination (2 classes and 2.5 hrs.)

Computer Use

MATLAB is used for eigenproblem solutions associated with torsional crankshaft vibration, valve train response, and engine mount optimization. Proprietary engine simulation software (DYnoSim) is used for conducting engine optimization studies. Solid modeling and finite element packages are used for component detail design.

Class/Laboratory Schedule

Three 50 minute sessions per week devoted to lecture, discussion, and design/analysis problem solving.

Evaluation

Weekly homework assignments: 15%, midterm examinations (2): 30%, design projects (2): 40%, final exam: 15%. Graduate students are required to perform a special assignment on complex domain eigensolution for damped valvetrain vibration.

Professional Component Contribution

Engineering design: 2 credits, engineering science, 1 credit.

Relationship to Program Objectives

This course supports Mechanical Engineering B.Sc. and M.Eng. 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.
Prepared by G. Prater, January 2009
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