Fatigue Quick Start Guide > Wheels Module - Analysis of Rotating Structures > Problem Description
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Problem Description
This simple example is used to demonstrate the Wheels module in MSC Fatigue. To aid in quick familiarity with this module .op2 files for Windows and Unix platforms are included for the model shown below.
The model is an 80 in (L) by 20in (R) hollow cylindrical modeled with cquad4 elements (t=0.01in.) meshed using a 10 in. by 10 degree increment mesh. The tube is clamped at each end and point loads of 0.5 lb. have been applied at 10-degree increments in separate subcases on the peripheral nodes. The reason for the application of the load of this magnitude is due to the fact that the wheels module, treats the output stresses in KSI units and any significant stresses in the plates will lead to erroneous interpretation of reported lives.