Unbalance에 의한 Impressed Force를 받는 System의 진동

Abstract

Systme 내부의 회전체의 회전에 의하여 진동하게 되는 System의 진동에 관하여 고찰했다. 진동은 1차원으로 한정해서 생각했고 초기의 Transient Vibration 보다는 Steady-state에 도달한 후의 진동에 주의하여 System과 그 내부 회전체의 Circular Frequency가 일치함을 밝혔다. damping이 적을때는 자유진동수 근처에서의 속도가 위험하나 속도가 클때에는 damping에 관계없이 진폭은 일정한 겂에 가까워짐을 밝혔다.

The vibration fo system which has single degree of freedom and is excited by the rotation of its member with unbalance si discussed. This note is concerned mainly with steady-state vibration rather than transient one. The circular frequency of the system is showed to be same as rotation member after a definite interval of time has passed. When the amount of damping is small, the speed near natural frequency is dangerous, but if the rotation speed be hagh, the amplitude of system approaches a constant value independently of damping.

The vibration fo system which has single degree of freedom and is excited by the rotation of its member with unbalance si discussed. This note is concerned mainly with steady-state vibration rather than transient one. The circular frequency of the system is showed to be same as rotation member after a definite interval of time has passed. When the amount of damping is small, the speed near natural frequency is dangerous, but if the rotation speed be hagh, the amplitude of system approaches a constant value independently of damping.