华中科技大学学报（自然科学版）2024，Vol.52Issue(12)：127-134,184,9.DOI:10.13245/j.hust.241215
多尺度模型下基于能量相关性的冲击源定位方法
Impact source localization method based on energy correlation under multi-scale models
摘要
Abstract
According to wave propagation characteristic of different scale structure models,it was theoretically verified that logarithm of signal energy had linear correlation with relative position of sensors and impact source,and a multi-parameter model of signal energy with sensor relative position of impact source was established.Location of impact source was calculated by minimizing objective function of grey wolf optimization algorithm through knocking on flat plate and large-scale cabin.Experiment results show that impact source localization error and localization error degree have a strong linear negative correlation with correlation coefficient of flat plate and large-scale cabin model.Due to wave reflection,prediction accuracy of impact source localization decreases with the increase of data signal length.Correlation coefficient of flat is higher than that of large-scale cabin.Under variation range of 10％～22％,impact source localization error degree of flat plate and that of large-scale cabin is consistent.关键词
能量法/冲击源定位/灰狼优化算法/相关系数/平板/舱段Key words
energy method/impact source localization/grey wolf optimization algorithm/correlation coefficient/flat plate/cabin分类
机械制造引用本文复制引用
黄秀峰,徐荣武,余文晶,崔立林,程果..多尺度模型下基于能量相关性的冲击源定位方法[J].华中科技大学学报（自然科学版）,2024,52(12):127-134,184,9.基金项目
国家自然科学基金资助项目(11904407) （11904407）
船舶振动噪声重点实验室基金资助项目(JCKY2024207CI06). （JCKY2024207CI06）
