摘要
提出了一种利用光纤布拉格光栅(FBG)传感器测量复杂结构固有频率的新方法。将FBG粘贴在钻台上,通过检测钻台表面的应变变化并进行数据处理进而实现对台钻的固有频率的测量,测得台钻的一阶固有频率为23.9Hz。将测量结果与ANSYS有限元仿真分析结果相比较,验证了此测量方法的可靠性。
A new method for measuring the natural frequency of a complex structure using fiber Bragg grating （FBG） sensor is introduced. The FBG strain sensor is stuck on the surface of the drill block. The natural frequency of the drill is measured to be 23.9 Hz by monitoring the strain change caused by mechanical vibration. It matches the result achieved by ANSYS finite element analysis very well.
出处
《激光与光电子学进展》
CSCD
北大核心
2013年第2期100-104,共5页
Laser & Optoelectronics Progress
