作者kindyoyotv (kindyoyotv)
看板Grad-ProbAsk
標題[理工] 機械-機械設計
時間Wed Jun 17 17:43:24 2009
A steel shaft is subjected to a completely reversed bending moment of 680N m.
A transition section at one end contains a fillet with a 2.5mm radius.The
steel has a tensile strength of 690 MPa,and the fatique limit is 310 MPa
.Kt for the fillet is about 2 and the dynamic factor of safety is 2.5
What is the minimum allowable diameter of the shaft?
這個題目我想很久 沒有方向 請各位大大幫解
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