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  3. the punch press can be modeled for vibration analysis in...

Question: the punch press can be modeled for vibration analysis in...

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The punch press can be modeled for vibration analysis in the x direction as indicated by th e three-degree-of-freedom system. The system has the following parameters: mi 400 kg, m2 2000 kg, m 1000 kg, k 300 000 N/m, k2 80 000 Nm, k3 - 800 000 N/m. The floor is subjected to a force of 10* Cos(0) (in Newtons). Assume reasonable initial conditions. I) Consider the unforced system: 1) Derive the equations of motion; 2) Find the natural frequencies and mode shapes. 3) Calculate the response. 4) Plot the response. 10Cos(t) $1 Tool-base mass my ky Mounting pad Platform mass Rubber mounting rrn3 Floor k3

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