机械与电子2025，Vol.43Issue(4)：12-18,7.
基于递归变模式提取的管道滑坡变形信号分解方法研究
Study on the Decomposition Method of Pipeline Landslide Deformation Signal Based on Recursive Variable Mode Extraction
摘要
Abstract
To address the issues of significant cumulative measurement errors,the inability to cali-brate,and the lack of consideration for sudden deformations in studies on pipeline deformation caused by landslides,this paper proposes an integrated fiber Bragg grating sensing and information processing method that fuses inclination and vibration information.Firstly,the principle of Cumulative deformation of pipes under the mode of distributed fiber grating dip measurement points and the sensing method of vibration in-formation under the sudden deformation of pipe are studied respectively.Thus,the theoretical basis for the calculation of sudden deformation and cumulative deformation is established.Then,a decomposition algo-rithm of fiber grating inclinometer multi-component signals based on recursive variational mode extrac-tion(RVME)is proposed,which effectively solves the problem of central frequency and penalty factor dif-ficult to be determined in the traditional variable mode decomposition(VMD)algorithms.Finally,through the self-developed sensor and the construction of the experimental platform,under the condition of apply-ing lateral displacement and impact vibration at the same time,the separation of tilt information and vibra-tion information has been successfully performed by the decomposition method of fiber grating inclinome-ter signal based on RVME.The experimental results show that the researched method has high engineering application value.关键词
光纤光栅/测斜信号/突发变形/累积变形/递归变分模式提取/模式分解Key words
fiber bragg grating/inclinometer signal/sudden deformation/cumulative deformation/recur-sive variational mode extraction/mode decomposition分类
电子信息工程引用本文复制引用
兰正悦,史雄风,周文龙..基于递归变模式提取的管道滑坡变形信号分解方法研究[J].机械与电子,2025,43(4):12-18,7.基金项目
国家自然科学基金资助项目(51805382) （51805382）
湖北省安全生产专项资金科技项目(KJZX2022) （KJZX2022）
