fb2_28

# fb2_28 - PROBLEM 2.28 KNOWN A force input signal varies...

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Unformatted text preview: PROBLEM 2.28 KNOWN: A force input signal varies between 100 and 170 N (100 < F <17o N) at a frequency of 0= 10 rad/s. FIND: Signal average value, ampliwdc and frequency. Express the signaL )0), as a Fourier series. SOLUTION: The signal characteristics may be determined by writing the signal as )(r) = 135 + 35 sin 10: [N] a) .11.,7 Average value=(170+ 100).I‘Z= 135 N b) C.=(170—100)/2 = 135 N; f. =co/21r -'-‘ lO/27r= 1.59 Hz c) )0) = I35 + 35 sin (10mm) ...
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