Abstract
The objective of this research is to investigate the vibration characteristic of the blade of a camera shutter unit. The shutter blade is a thin platy part which is combined four different shape narrow plates and two different length support arms. Measurements are carried out by the forced vibration testing method on different component parts of shutter blade. The results show that the shutter blade has two resonance frequencies in variable frequency range. And it is clear that these peak frequencies are different from that of the unit plate test. But one of them is agree with the resonant frequency of the single arm. In addition, the center of gravity position of the shutter blade has an effect on the resonance frequency.
