基于弹丸底部形变重构的应变传感器最优布局

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引用格式：刘威，孙传猛，裴东兴，等.基于弹丸底部形变重构的应变传感器最优布局[J].现代电子技术，2026，49（7）：127-132.

关键词：传感器优化布设；形变重构；弹底；模态叠加法；模态评价准则；应变能密度；NSGA-I中图分类号：TN709-34；TP183 文献标识码：A 文章编号：1004-373X（2026）07-0127-06

Sensor placement optimization based on projectile base deformation reconstruction

LIU Wei1²， SUN Chuanmeng1，²，PEI Dongxing1，²，WANG Yu1，2 ，JINHong²，MENG Tong1，² （ial 2.Schoolof Electrical and Control Engineering，NorthUniversityofChina，TaiyuanO3oo51，China）

Abstract：In viewof thelimitation that existing parameters suchasprojectilebase strain failtocapture thefullresponseof thebase，this paper constructedatarget function bymaximumsumofstrainenergy densities，minimum ofroot mean square erors （RMSEs），andmodalassurancecriteria（MAC）.IncombinationwiththeNSGA-Igeneticalgorithm，thisapproachyielded anoptimalsensorlayout.Theappoachmaximizedfieldinformationacquisitionwith minimaldatapoints.Byextracting values fromtheoptimized locationsandapplyingmodal superpostion，theapproachreconstructedbasestrainanddisplacement.By comparing thesereconstructedvalueswithsimulatedtheoretical values，theefectivenessof theNSGA-Igeneticalgorithm objectivefunctionwasvalidated.Thereconstructionaccuracyof theNSGA-Iplacement methodreached92.7%.Comparisons were made betwentheproposedappoachandtheefectiveindependence （EI） method，modal kineticenergy （MKE）method，and theEI-DPR （efectiveindependence-drivenpointresidual）placement method.ThereconstructionacuracyoftheEIplacement method was 90.6% ，that of the MKE method was 91.2%，and that of the EI-DPR placement method was approximately 90.8%. The NSGA-I method yielded more precise sensor information.

Keywords：sensor placementoptimization；deformation reconstruction；projectile base;modal superposition;MAC；strain energy density; NSGA-II

0 引言

火炮是现代化军事装备中主要的火力打击装备，精确性是它的核心指标之一。（剩余7869字）