ME 460/660 : Engineering Vibration

Dr. Ravi C. Penmetsa
Room: 227 Russ Engineering Center
Phone: 775-5089

E-mail:     
pravi@cs.wright.edu

Web Page:
http://www.wright.edu/~ravi.penmetsa

Office Hours:
Distributed in class

Location:
Check ROX

Prerequisites:
ME 213 Dynamics
EE 321 Linear Systems 1

Course Objective

After completion of this course, the student will be able to:
Master the basic principles of mechanical vibrations and their properties.
Analyze real world engineering problems by formulating simplified models for initial design.

Measure mechanical vibrations by designing appropriate test procedures.

Write reports describing and evaluating the obtained results.

Design vibration isolators for a given system subject to certain design requirements.

Course Resources

Textbook

 

Inman, D. J., Engineering Vibration, Second Edition (Required).

Course Contents

Introduction To Free Vibration And The Free Response (Chapter 1)

Response To Harmonic Excitation (Chapter 2)

General Forced Response (Chapter 3)
Multiple-Degree-Of-Freedom Systems (Chapter 4)
Design For Vibration Suppression (Chapter 5)
Grad Students Only: Distributed Parameter Systems (Chapter 6)
Experimental Vibration Analysis

Course Structure (Prerequisites (5%) (Sample exam))

You are expected to know the following. You will be tested on them the third day of class. Please review your old course notes and texts.

Solution of homogeneous 1st and 2nd order linear differential equations.

Solution of homogeneous 1st and 2nd order linear differential equations to step, ramp and sinusoidal forcing functions.

Rigid body dynamics: Combining Newton’s law and kinematics to write the governing equation/s of motion for single degree of freedom systems.
Ability to find the Fourier series representation of a repeating function.
Design For Vibration Suppression (Chapter 5)Ability to solve linear differential equations using Laplace transforms.

Homework (10%)

 

Homework problems will be assigned at the end of each lecture to test students understanding of the material covered. Homework solutions will be collected a week from the day the questions were distributed. Each homework problem is worth 1 point. Your final homework score is your average total score of all the homework’s. Please see me should you experience any trouble with your homework. This class is a cooperative effort between you and me. You are also encouraged to do additional problems out of the text for practice on your own. Late homework would be given only partial credit, which would be determined based on the reason for late submission. I reserve the right to accept or reject late submissions.

Exams (50%)
  There will be two tests and a final exam graded on a straight scale ( 90 = A, 80 = B, 70 = C, 60 = D, < 59 = F). One exam grade will be dropped. The final exam will count as two tests and will be comprehensive. The two test grades plus the final exam grade (counted twice) yields four grades, one of which may be dropped (This is how you are compensated for illness, family emergencies, car trouble, poor alignment of the stars...). Tests will be returned as soon as possible. Solutions will be discussed during the lecture following the exam if time permits. All grading discrepancies must be brought up in writing no later than one week after the exam is returned. A simple note describing your contentions will do. You must receive an exam grade of at least 55% in order to pass the course. All work must be done on using pencil or black ink.
Labs (35%) 139 Russ
  Four experimental and four computational/design labs will be assigned during the lab sessions. See the lab handouts for more details. Chapter 8 of the textbook is a useful resource on experimental techniques. Please read the appropriate sections of the text before coming to the lab. All labs must be completed to receive a passing grade in the course. Lab reports will be worth a combined total of 20% and the lab final will be worth 15%. The lab final will be an open notes/open lab, so it is vital that you participate in the labs during the quarter and document for yourself how to perform them.
Graduate Work (20%)
  Graduate students will be expected to perform additional homework assignments. You will be responsible for them on the final exam. Graduate students may also be assigned additional topics in addition to chapter 6. Undergraduates who perform the extra graduate work may use these points as bonus points.

Attendance and Class Participation

Attendance at lectures is optional and you are not assigned any grade for attendance. If you miss class, you are responsible for obtaining missed material, including assignments, from another student. I will not repeat with you material covered in class if you do not attend.

Attendance in labs is mandatory. If you miss a lab, you must make it up. You must receive a passing grade for each lab assignment in order to complete the class. See the section on labs.

Problem Solutions

All problem solutions, whether on homework or exams, should be neat and orderly. They should begin with a brief problem statement and figure (Elaborate drawings are not expected). A freebody-diagram is REQUIRED if Newton’s law is applied. If Newton’s law is applied, and no freebody-diagram is given, no partial credit will be given. A brief description of each major step taken is necessary. Incomprehensible solutions will not receive partial credit.

Cheating

Don’t …

Important Dates

Distributed in Class  
   
 
 

 

© Dr. Ravi Penmetsa 2004. All rights reserved