한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2000년도 춘계학술대회논문집
- /
- Pages.531-535
- /
- 2000
- /
- 1598-2548(pISSN)
2차원 연속 Scanning을 이용한 진동모드 해석
The Analysis of Mode Shape using 2 Dimensional Continuous Scanning
- 발행 : 2000.06.22
초록
If the displacement of the structure is obtained by integrating the signal from accelorometer and laser, the vibration mode can be examined. This conventional method, however, has the disadvantage of the necessity of multiple accelerometers and many data processing steps such as frequency response function(FRF). In order to get smooth mode shape, we should also use algorithms of cubic spline or others. In this paper, we propose a method which gets the mode shape by using the velocity signal directly obtained from the plane scanning. In this method, we just use coefficients and phases for specific frequency.
키워드