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Endurance Vibration Analysis

josephmalvinraj

We are trying to correlate experimental setup which is excited for 4.5 g at 33 Hz for 24 hours

and Stimulate it to FEA, Please can i have a sample deck.or to set the deck for this in FRF analysis

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Rahul Rajan_21763

Please refer the attached deck for sine sweep fatigue analysis. Please use OptiStruct 2017.2.2 or above version for analysis. Refer the user guide for the details of sine sweep fatigue analysis.

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josephmalvinraj

Thanks Rahul,Please let me know that Frequency Response will have Various Frequency and at which frequency we are Getting maximum,

But

My case the excitation frequency and amplitude is constant over a particular time period

that is excitation frequency is 33 HZ and 4.5 G level.

Rahul Rajan_21763

Please try with modal transient analysis.

josephmalvinraj

How to do fatigue for this

Rahul Rajan_21763

PFA sample example for Modal Transient Fatigue analysis.

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josephmalvinraj

Thanks i will let you know for further doubts

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