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FEA for rotational shaft with variable load

Question asked by W.G.D.S. Ranasgalla on Oct 13, 2020
Latest reply on Oct 14, 2020 by W.G.D.S. Ranasgalla

hi,

A square bar has fixed with bearing support at one end and a cloth layer with 90kg has rolled and inserted to it. (refer below image)

Then, consider the cloth layer is pulled by free end with constant force of 100N. (Refer image) And it tends to rotate the shaft.

The layer roller weight slightly reduce with the time and rotating speed is increasing.

My question is, the shaft get subjected to fatigue failure in the physical condition. I need to do a FEA regarding this.

 

Thanks.

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