激光与光电子学进展, 2013, 50 (2): 020601, 网络出版: 2013-01-08
光纤布拉格光栅用于台钻固有频率测量
Measurement of the Natural Frequency of Bench Drill Based on Fiber Bragg Grating
光纤光学 光纤光栅传感器 台钻 ANSYS有限元分析 固有频率 fiber optics fiber grating sensor bench drill ANSYS finite element analysis natural frequency
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23.9 Hz。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。
Abstract
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.
刘春晓, 余有龙, 洪俊, 薛航. 光纤布拉格光栅用于台钻固有频率测量[J]. 激光与光电子学进展, 2013, 50(2): 020601. Liu Chunxiao, Yu Youlong, Hong Jun, Xue Hang. Measurement of the Natural Frequency of Bench Drill Based on Fiber Bragg Grating[J]. Laser & Optoelectronics Progress, 2013, 50(2): 020601.
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