My Mechanical Vibration CSUF EGME 431 course web page

Nasser M. Abbasi

Last updated May 22, 2009

 Introduction I took this course in Spring 2009 at CSUF to learn more about Vibration and control of vibration Not part of a degree program. In the Mechanical Eng. department. Text Book Instructor Dr Sang June Oh sjoh@fullerton.edu  714-278-2458

Course Material

Project

Using Simulink to analyze 2 degrees of freedom system (moved to my main notes)

Exams

 exam My score Class average exam First midterm 100/100 71 PDF Second midterm 98/100 PDF Final exam 87/100 PDF

PDF

## Cheat sheets

First midterm  PDF

Quizz

PDF

Homeworks

 HW number Description of HW Grade Solution Key 1 1.      Equation of motion of spring mass on an incline surface 2.      Equation of motion of pendulum attached to spring 3.      Solving 2nd order ODE’s 4.      Equation of motion of mass attached to 2 pulley’s 66/70 HTML   Graded solution PDF PDF 2 1.      Find solution to spring mass system with forcing function for different IC’ 2.      Compute IC for spring mass system to cause it to oscillate at some frequency 3.      Find EQM for spring-damper-mass system on incline surface 4.      Car and passengers and different speeds, deflection calculations 5.     The unbalanced mass rotating, the washing machine problem OK HTML 3 1.      Find solution to second order ODE with impulse as input 2.      Spring-damper-mass dropped from height h, find resulting EQM 3.      Find solution to second order ODE with 2 impulses as input, one delayed. 4.      Find response of undamped system to half sin input force, using convolution 5.      As above, but the forcing function is triangle looking. Use convolution also. 6.      Find Fourier series for sawtooth function 7.      Solving 2nd order ODE with impulse as input using Laplace transform 8.      Find shock response spectrum to half-sine input (hard) 9.      Find H(s), the transfer function for ODE 10.   Find the frequency response for the above H(s), i.e. set s=jw and plot Ok HTML PDF