ME429_Fall_2009_HW5_ - Assigned on 09.10.2009 Monday Due date 16.11.2009 Monday beginning of the lecture sharp ME429 Fall 2009 HW5 SOLUTION 1 Using

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Unformatted text preview: Assigned on 09.10.2009 Monday Due date 16.11.2009 Monday, beginning of the lecture, sharp! ME429 Fall 2009 HW5 - SOLUTION 1) Using the system characteristics from the solution of HW4 5 10 N/m k = , 0.03182 η = ( )( ) 5 10 0.03182 3182 N/m h k η = = = 100000 100 rad/s 10 n k m ω = = = Writing the receptance expression for a SDOF system with hysteretic damping; a) ( ) 5 2 2 5 2 1 1 1 10 m/N 10 10 3182 1 0.03182 1 100 n k i i i α ω ω ω ω η ω = = =- +    - +- +         b) Nyquist plot of α (ω) c) α ( ω ) vs. ω-2-1.5-1-0.5 0.5 1 1.5 2 x 10-4-3-2-1 x 10-4 real part of the c om plex rec eptanc e [m /N] imaginary part of the complex receptance [m/N] Im [ α ( ω )] vs Re[ α ( ω )] Assigned on 09.10.2009 Monday Due date 16.11.2009 Monday, beginning of the lecture, sharp! d) log ( α ( ω )) vs. ω e) log ( α ( ω )) vs. log ( ω ) 20 40 60 80 100 120 140 160 180 200 0.5 1 1.5 2 2.5 3 3.5 x 10-4 frequency [rad/s] modulus of the receptance [m/N]...
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This note was uploaded on 03/28/2010 for the course AEROSPACE aero520 taught by Professor Mok during the Spring '10 term at Istanbul Technical University.

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ME429_Fall_2009_HW5_ - Assigned on 09.10.2009 Monday Due date 16.11.2009 Monday beginning of the lecture sharp ME429 Fall 2009 HW5 SOLUTION 1 Using

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