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  3. answer the following question it does not require numerical calculation...

Question: answer the following question it does not require numerical calculation...

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Answer the following question. It does not require numerical calculation. You must provide to earn credits. (a) 5%) Consider the S DOF, undamped, mass-spring system under harmonic force: mx土ㄨ三focos (ω) where ω un m. In general the vibration t) contains oscillations in both and ah-How can the vibration x(t) contains only one frequency of oscilation? wa ha ronll meus e machine surface shown below is known to exhibit sinusoidal vibration. To monitor the vibration mass-spring-damper system is put in between the machine and the rigid wall. The idea of the machine surface, a is to use the vibration z0)x)-yO) [7/10] Provide yo In what frequency range can the quantity you answer in (bl) be best captured? signal z() x(t)-y(t) to characterize the vibration property of the machine surface. (bl) velocity or acceleration that z can characterize. (b2) [3/10] ur reasons if it is the displacement, accelerat rigid wall ela, machine surface Asin(ot)
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