摘要
为了探索光纤智能金属结构中光纤布喇格光栅(FBG)的温度灵敏度,必须对温度变化时光纤智能结构中FBG所受的应力应变进行分析。分析了FBG经过保护再埋入金属后温度变化时的应力应变,推导了FBG埋入金属后的温度灵敏度公式。以FBG埋入铝合金为例,对埋入金属后的FBG受温度变化时的应力应变进行了理论分析并用ANSYS软件进行了仿真(有限元分析),理论和仿真得到了一致结果。
In order to explore the temperature sensitivity of fiber bragg grating（FBG） in smart metal structure, the stress and strain of FBG under temperature variation must be analyzed. The strains and stresses on the embedded FBG sensors under varied temperature were analyzed , The temperature sensitivity of embedded FBG was deduced in theory. Taking FBG embedded in aluminum-alloy as example, the strains of FBG which embedded in metal under varied temperature was analyzed in theory and simulated by finite element analysis software （ANSYS）. The results of theoretical analysis matches the ones from simulation well.
出处
《压电与声光》
CAS
CSCD
北大核心
2008年第2期147-149,共3页
Piezoelectrics & Acoustooptics
基金
“九七三”前期研究专项基金资助项目(2005CCA04300)
关键词
智能金属结构
热应变
有限元分析
温度灵敏度
smart metal structure
thermal strain
finite element analysis
temperature sensitivity
