Mechanical Engineering 4610: Dynamics of Machines

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Mechanical Engineering 4610: Dynamics of Machines
Fall Semester, 2003
Instructor: Dr. Thomas Thompson Office: ENS 177
MWF 11am; TR 1pm
Meeting Time: Lecture MW 2:00 - 2:50 pm
Lab F 2:00 - 3:50 pm
Text: Design of Machinery
, Robert L. Norton, McGraw-Hill, 2
nd
ed.
(same text was used for EGME 3610, Kinematics and Design of Machines)
Integration of Biblical Truth
. God has created the universe so that physical bodies obey certain dynamic laws of motion.
Throughout history, people have discovered these laws, quantified them mathematically, and used them in designing machines
capable of converting and transmitting power. In this course we shall study and learn to apply these dynamic principles to linkage
mechanisms and rotating components (especially those in internal combustion engines). Modes of learning will be lecture,
reading, analysis and solution of homework problems, laboratory work, and examinations.
Learning Objectives
.
1. Understand and analyze the effects of mass distribution in rigid body dynamics.
2. Analyze and compute link forces in moving linkage mechanisms.
3. Design a flywheel for a machine.
4. Analyze shaking forces in single- and multi-cylinder engines.
5. Understand the influence of shaking forces on engine design.
Standards
. Each student will be responsible for completing each reading assignment specified on the accompanying
schedule.
One homework problem will generally be assigned along with each lecture. Homework problems from a given week
are to be handed in the following Monday. One problem from each set will be selected for detailed grading; the rest will be
checked for completeness. Each student should collect completed homework problems in a binder. Homework problems may
involve analysis or computer solution using TK Solver and special programs supplied with the textbook.
Fifteen to 25 minutes will be allocated during scheduled labs or class sessions for quizzes over Chapters 10, 11, 12, 13,
14, and 15.
There will be five laboratory experiences complete during the two-hour Friday sessions. Each lab report will be due
one week after the last lab day allocated for that experience. Appropriate eye protection and shoes must be worn for all laboratory
experiences in accordance with all verbal or posted instructions.
The numerical course grade is to be determined by the following components.
Homework 15%
Quizzes 45
Chapter 10 5%
11 10
12 5
13 10
14 10
15 5
Labs 20
Final Exam 20
100%
Attendance is mandatory. Students who miss class more than twice without legitimate cause will have their final grade
reduced by a full letter. Clear absences with Dr. Thompson beforehand if possible.
Missed lab work will be made up on an individual basis.
If you have a disability covered by the Americans with Disabilities Act for which academic accommodations might need to be provided in this course,
please contact me or t he Academic Assistance Office (Dr. Pamela Johnson, Ext. 7765, johnsonp@cedarville.edu
or Mrs. Marilyn Meyer, Ext. 7633,
meyerm@cedarville.edu
) as soon as possible so that the appropriate accommodations can be determined and arranged.
EGME 4610 Dynamics of Machines Fall Semester, 2003
Day Date Topic Reading Assignment or
Lab (tentative)
Wed
Fri
Aug. 20
22
1. Introduction; Dynamics Fundamentals
Lab I: Moment of Inertia
Sections 10.0 - 10.6 Pr. 10-1, etc.
Mon
Wed
Fri
25
27
29
2. Dynamics Fundamentals; Introduction to Design Project
3. Newtonian solution method; Three-bar linkage
Lab I: Baseball Bat; Chapter 10 Quiz
10.7,10.8,10.11,10.12,10.13
11.0 - 11.3
Hoe
Ex. 11-2
Mon
Wed
Fri
Sept. 1
35
Labor Day–No Class
4. Force Analysis of Four-bar Mechanisms
Lab II: TK Solver Four-bar Force Solution
11.4 - 11.5 Four-bar solver
Mon
Wed
Fri
8
1012
5. Inverted Four-bar and Multiple-bar Mechanisms
6. Shaking; Dynafour Program
Lab II: Shaking and Flywheel (Inductive)
11.6 - 11.7
11.8 - 11.9
Four-bar list-
solver Pr. 11-3
Mon
Wed
Fri
15
17
19
7. Energy Methods and Flywheels
8. Flywheels; Discuss Design Project
Lab II: Flywheel Lab (Deductive); Chapter 11 Quiz
11.10 - 11.11
11.13
Pr. 11-4a
Flywheel Design
Mon
Wed
Fri
22
24
26
9. Static Balance; Dynamic Balance
10. Dynamic Balance; Balancing Fourbar
Lab III: Dynamic Balancing
12.0 - 12.1
12.2 - 12.4
Pr. 12-1a,b; 12-2
Pr. 12-5a,b
Mon
Wed
Fri
29
Oct.1
3
11. Balancing with Dynafour; Correcting Imbalance
12. Engine Design; Slider-Crank Kinematics
Lab III: Dynamic Balancing and Slider-crank Acceleration;
Chapter 12 Quiz
12.5 - 12.6
13.0 - 13.2
Pr. 12-6
Pr. 13-1
Mon
Wed
Fri
6
8
10
13. Gas Forces; Equivalent Masses
14. Shaking Forces and Torques; Total Engine Torque; Flywheels
Lab V: Engine Tear-down
13.3 - 13.4
13.5 - 13.8
Pr. 13-3, 7
Pr. 13-9, 11
Mon
Wed
Fri
13
15
17
15. Pin Forces and Balancing
16. Design Trade-offs; Discuss Design Project; Multicylinder Engines
Lab IV: TK Solver Engine Forces; Chapter 13 Quiz
13.9 - 13.10
13.11; 14.0-14.1
Pr. 13-19
Engine
Mon
Wed
Fri
20
2224
17. Multicylinder Engines; Crank Phase;
(Day of Prayer) 18. Forces, Torques, and Moments in In-Line Engines
Fall Break–No Class (
14.2
14.3 - 14.5
Pr. 14-1a
Pr. 14-1
Mon
Wed
Fri
27
2931
19. Even Firing
20. Vee and Opposed Engines
Lab IV: Program Engine In-Line Analysis
14.6
14.7 - 14.8
Pr. 14-2a
V-6 Firing
Mon
Wed
Fri
Nov. 3
57
21. Balancing Multicylinder Engines; Program Engine
22. Balancing Multicylinder Engines; Chapter 14 Quiz
Lab IV: Program Engine Vee
14.9; Chapter 16 Engine chart
TBA
Mon
Wed
Fri
10
1214
23. Lumped-Parameter Models; Equivalent Systems
24. Dynamic Force Analysis of the Force-Closed Cam Follower
Lab V: Engine Component Measurement
15.0 - 15.2
15.3
TBA
TBA
Mon
Wed
Fri
17
19
21
25. Resonance; Force-Closed Cam Follower
26. Form-Closed Cam Follower; Camshaft Torque
Lab V: Engine Cam Test; Chapter 15 Quiz
15.4 - 15.5
15.6 - 15.7
TBA
TBA
Mon
Wed
24
26
27. Polydyne Cams; Dynamic Force Measurement
1:00 pm Thanksgiving Vacation begins–No Class
15.8 - 15.10 TBA
Wed
Fri
Dec.3
5
28. Presentations and review
Lab V: Engine Simulation
TBA
Mon
Fri
8
12
Review
Final Exam--1:00 - 3:00 pm