**ME-340**

**INTRODUCTION TO MECHANICAL SYSTEMS**

**SUMMER, 2001**

**INSTRUCTOR:** John Baker

**Office:
Home: **

Crounse Hall, Room 206**
**Phone: (270) 534-1066

Phone: (270) 534-6342 Email: jrbaker@gateway.net

FAX: (270) 534-6292

Office Hours: T-W-R: 2:00 p.m. - 4:00 p.m. (Central Time)

**COURSE**

** Web Site
**http://www.engr.uky.edu/~jrbake01/me340.html

** Meeting Times
**T-W-R: 5:30 p.m. - 7:10 p.m (Central Time)

** Prerequisites
**EM-313, CS-221, engineering standing

** Required Text
**Close and Frederick, *Modeling and Analysis of Dynamic Systems*, Second Edition,
John Wiley and Sons, Inc., 1995

**GRADING**

**Scale
**90-100
A

80-89 B

70-79 C

60-69 D

Below 60 E

** Distribution **In-Class Exercises
5%

Quizzes 15%

Homework / MATLAB 10%

Exam I 22.5%

Exam II 22.5%

Final Exam 25%

**NOTES**

•The instructor will be available at other times, in addition to those listed above, for office hours. Students are encouraged to stop by the office, call, or send an email, whenever help is needed. Feel free to call at home on evenings and weekends.

• Students are provided course lecture notes. However, additional information may occasionally be included in the lectures which is not in the notes. It is very important that students preview course notes related to expected lecture material prior to each lecture, and also read the relevant sections of the textbook. The lectures will be delivered at a relatively fast pace, because students are provided notes in advance, requiring less writing during class on the part of students.

•The grading scale shown is a guideline, so adjustments may be made.

•A number of short, in-class exercises will be given. These will not typically be announced in advance. Sometimes, these will involve solving a problem, similar to a quiz. Students should bring some blank paper to class on which to work through in-class exercises. Much of the credit on in-class exercises will be based on participation. To receive credit, you must be in attendance. Except in cases of emergency, if you must miss a class, you should inform the instructor in advance. If you have an excusable reason for missing the class, and if the instructor is informed in advance of the absence, then a missed in-class exercise will not count against you. The two lowest in-class exercise grades will be dropped.

•There will be approximately seven quizzes. These will be announced at least one class period in advance. Except in cases of emergency, if you cannot attend class for some excusable reason on a quiz day, it is essential that the instructor be notified in advance. Arrangements for special circumstances must be made in advance of the time of the quiz. Otherwise, the student will receive a grade of zero for the quiz. No quiz grades will be dropped.

•There will be approximately nine homework assignments. Homework must be turned in at the start of class on the due date. No late homework will be accepted. Grading on the homework will be based to some extent on effort. A perfect score on a particular homework problem does not necessarily indicate that the problem solution had no errors. A full homework solution will be made available after each homework due date. Each student should thoroughly review the homework solutions. Students may wish to keep a copy of their solutions to compare immediately to the provided solution, because it will be available before the graded homework is returned.

•There will be probably three assignments during the semester based on the software tool, MATLAB. These will not be accepted after the due date. These will count as part of the homework grade.

• There will be two exams during the 8-week session, and a comprehensive final exam. Make-up exams will only be given in special circumstances. If any student cannot attend class, for some excusable reason, on one of the scheduled exam dates, it is essential that the instructor be notified as soon as possible, so that other arrangements can be made. Anyone who misses an exam without being granted approval in advance will receive a grade of zero for the exam.

• Course announcements may occasionally be made via email or posted on the course website. Students should check email and the course website regularly.

**GOALS**

• To become familiar with mathematical modeling methods for systems, such as mechanical and electrical systems.

• To become familiar with methods for solving the mathematical models to gain insight into how a system will respond to various types of inputs.

**OUTCOMES**

Students will be able to:

1. Construct mathematical models of translational and rotational mechanical systems, passive electrical systems, and thermal systems, using idealized elements.

2. Arrange the resulting equations in a form suitable for solution such as state-space form or input/output equation form.

3. Using analytical methods, solve first- and second-order ordinary differential equations to determine free, step, and impulse responses.

4. Show how the system response is affected by the choice of time constant, damping ratio, and natural frequency.

5. Apply Laplace transform principles to find the complete time response of a system to a given input. Determine the zero-input and zero-state responses.

6. Determine the transfer function and the frequency response of a system.

7. Use modern engineering tools such as MATLAB to determine system response.