Page 22 - Vibrations
P. 22

If the applied stress is


                                                                  low you can bend it


                                                                  many times before it


                                                                  fails.











            If the bending causes a lot of stress it will fail after


            fewer bendings.



            During a vibration a mechanical component is


            displaced (bending occurs) and it is stressed.



            The greater the displacement, the greater the


            stress.


            A point of vibration will be a point of stressing and


            bending.



















            Consider a rotating shaft held in position by two


            bearings. As it rotates is flexes and bends very


            slightly.




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