Course Description

University of California, Davis
Department of Mechanical and Aerospace Engineering
Introduction to Mechanical Vibrations - ENG 122
Fall 2016, Lecture: MW 4:10-6:00PM
CRN: 32317

Mechanical structures and systems are susceptible to vibrations, i.e. periodic changes in the physical state. Vibrations can both be a hindrance and a benefit to machines. In this course we will learn how one can predict vibrations and interpret simulated and measured vibrations using analytical and computational means. We will cover topics ranging from free and forced vibrations in lumped-parameter systems with and without damping, vibrations in coupled systems, electromechanical analogs, and use of energy conservation principles.

Learning Objectives

  1. Students will derive and interpret analytical vibrational theory.
  2. Students will create models of mechanical systems capable of explaining vibrational phenomena.
  3. Students will write computer programs that simulate and explore vibrating mechanical systems.
  4. Students will analyze and interpret simulations and measurements of mechanical systems.


  • ENG 102
  • EME 5[*], ENG 6 or ECS 30
  • Ability to program in Matlab or similar language.
[*]Note that the course catalog incorrectly lists ENG 5 as an optional prerequisite. It should be EME 5.


Jason K. Moore
2095 Bainer Hall

Kenneth Lyons

Time and Location

The lecture/discussion meets on Mondays and Wednesdays from 4:10-6:00 PM in Haring Hall 1204.

If you have any conflicts with the schedule, especially for the midterm or exam, you must tell me in the first week of class (emergencies will be the only exception).

Office Hours

Instructor Office Hours
Bainer 2095
Th 10-11, F 11-12

TA Office Hours
Bainer 2071 (CAE Lab)
Th 3-4, F 2-3

To schedule an appointment with Jason, check his work calendar and select at least three potential times on different weekdays between 8 AM and 6PM. Send him an email requesting an appointment at the suggested meeting times.

Academic Integrity

Academic dishonesty will not be tolerated. Please visit the Academic Integrity web page from UC Davis Office of Student Judicial Affairs to review the campus' policy on academic responsibility and integrity and read the UC Davis code of academic conduct.

The midterm and final exam will be closed note, closed book and done on an individual basis.

Feel free to discuss homework assignments and work on them together, but each student must turn in a unique solution. Keep in mind that actually doing all of the homework yourself is critical for learning and passing the course.


Engineering Vibration, Daniel J. Inman, 4th Edition, Pearson Education. ISBN 978-0-13-287169-3 [Book Information]

Most homework problems will come from the book.

Assignments & Grades

Grades will be available in the grade book periodically throughout the course along with class statistics. Check the website on a regular basis to gauge your performance. Keep in mind that 15% is deducted per business day late on all assignments.

Classwork 5%
Homework 15%
Midterm 35%
Final 45%
There will be in class quizzes and computational exercises. These will be sometimes be graded for participation and sometimes for correctness.
Weekly homework will be assigned from the book which will be due before class the following week in the mechanical engineering homework drop box A in Bainer Hall.


We will make use of Canvas for the course. Log in to with your Kerberos ID and passphrase then select ENG 122 001 FQ 2016.

We will be using several features in canvas:

This will be my primary communication avenue to you. These announcements will be forwarded automatically to your UCD email address. You are expected to read these either through your email program or on the Canvas website.
The electronic assignments will be distributed and collected here.
Your grades and basic stats on your relative performance will be available as the course goes along.
Copyrighted and private files, documents, and other resources will be available here for download. The rest will be available for download on this website.



Personal electronic correspondence from the instructors will be made to your UCD email address. It is your responsibility to check this regularly.

Electronic announcements from the instructors to the whole class will be made through Canvas. By default, Canvas will automatically send the announcement to your UCD email address. You can change your Canvas settings to opt out, send it them to a different email, or as an SMS. You are responsible for reading the announcements made via canvas.

When contacting the instructors via email you should default to submitting it via Piazza (see next section) unless the question is a private matter.


Piazza should be used for all questions about the class, homework, theory, projects, etc that is not of a private nature. Piazza allows both the instructors and students to collectively answer questions for the whole classes benefit. The instructors can also endorse the student answer if it is correct. The top student askers and answerers, to be judged by the instructors, will be rewarded with bonus points to their final grade.

The Piazza forum can be reached here: