exam02_review - ME 375 Spring 2011 Topics Covered on Exam...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ME 375 – Spring 2011 Topics Covered on Exam No. 2 Steady-state response to harmonic excitation Y s ( ) = G s ( ) U s ( ) = N 1 s ( ) N 2 s ( ) ... N m s ( ) D 1 s ( ) D 2 s ( ) ... D n s ( ) U s ( ) For u t ( ) = sin ω t : y ss t ( ) = G j ( ) sin t + G j ( ) ( ) where 1 G j ( ) = Real 2 G j ( ) { } + Imag 2 G j ( ) { } = N 1 j ( ) N 2 j ( ) ... N m j ( ) D 1 j ( ) D 2 j ( ) ... D n j ( ) G j ( ) = tan 1 Imag G j ( ) { } Real G j ( ) { } = N 1 j ( ) + N 2 j ( ) + ... + N m j ( ) − ∠ D 1 j ( ) − ∠ D 2 j ( ) ... − ∠ D n j ( ) are the amplitude and phase frequency response functions (FRFs), respectively. Plots of G j ( ) dB and G j ( ) vs. (on a log 10 axis) are known as the Bode plots for the steady-state harmonic response. If N k s ( ) and D k s ( ) represent constant, linear and quadratic factors of the numerator and denominator of G s
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/22/2011 for the course ME 375 taught by Professor Meckle during the Fall '10 term at Purdue University-West Lafayette.

Page1 / 2

exam02_review - ME 375 Spring 2011 Topics Covered on Exam...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online