MAE147-lecture+15

# MAE147-lecture+15 - MAE 147 "Vibrations" Lecture 15...

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MAE 147 “Vibrations” Lecture 15 Instructor: Professor Andrei Shkel Email: [email protected] Office: EG4208

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L15-2 MAE 147 “Vibrations” Professor Andrei M. Shkel Winter 2008 Before we get started ± For this week ² Quiz today ² Finishing Chapter 6 and Starting Chapter 7 ² HW 8 (due March 5) ² Reading: Sections 7.1-7.3 (due March 3 rd ) ± Last Time ² Free Vibration Analysis ± Natural Frequency ± Characteristic equation ± Principle modes of vibration ± Laplace transform method of analysis
L15-3 MAE 147 “Vibrations” Professor Andrei M. Shkel Winter 2008 Lecture Outline ± Modes of Vibration ± Nodes ± Principal Coordinates

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L15-4 MAE 147 “Vibrations” Professor Andrei M. Shkel Winter 2008 Example, 2DOF: m 1 =1kg, m 2 =1kg k 1 =k 2 =k 3 =2N/m ± Find equations of motion
L15-5 MAE 147 “Vibrations” Professor Andrei M. Shkel Winter 2008 Steps for Finding Natural Frequencies 1. Equations of Motion 2. Laplace Transform 3. Solve Characteristic Equation (CE) 4.

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## This note was uploaded on 04/07/2008 for the course MAE 147 taught by Professor Shkel during the Winter '08 term at UC Irvine.

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MAE147-lecture+15 - MAE 147 "Vibrations" Lecture 15...

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