Mechanical Vibrations

MECHANICAL VIBRATION   - Guided by Prof. Umesh Chavan Introduction Mechanical vibration is the motion of a particle or body which oscillates about a position of equilibrium. Most vibrations in machines and structures are undesirable due to increased stresses and energy losses. It deals with the relationship between forces acting on the mechanical system and the oscillatory motion of mechanical system about a point within the system.  The main reasons of vibration are as follows : Unbalanced centrifugal force in the system. This is caused because of nonuniform material distribution in a rotating machine element. Elastic nature of the system. External excitation applied on the system. Winds may cause vibrations of certain systems such as electricity lines, telephone lines, etc Importance of Vibration Study The structures designed to support the high-speed engines and turbines are subjected to vibration. • Faulty design and poor manufacture can cause unbalance in the engines...