第44卷第6期2023年6月兵工学报ACTAARMAMENTARIIVol.44No.6Jun.2023DOI:10.12382/bgxb.2022.0081采用弹体追踪导引律的旋转弹锥形运动稳定性宋金超,赵良玉(北京理工大学宇航学院,北京100081)摘要:针对旋转弹采用捷联导引头和弹体追踪导引律时可能导致锥形运动失稳的问题,推导了捷联导引头在非旋转弹体坐标系下的动力学模型,建立了复数形式的弹体追踪制导控制系统数学模型;在不同弹体转速及阻尼回路增益情况下,分别考虑导引头响应延迟和陀螺标度因数误差,分析了上述制导控制系统的稳定性,并使用数值方法求得使其稳定的特征参数取值范围。研究结果表明:导引头延迟角越大,使系统稳定的制导回路增益上限越小;陀螺标度因数误差系数大于1时,使系统稳定的制导回路增益上限会变大,当陀螺标度因数误差系数小于1时,使系统稳定的制导回路增益稳定上限会变小。关键词:旋转弹;锥形运动;弹体追踪导引律;稳定性中图分类号:TJ765.3文献标志码:A文章编号:1000-1093(2023)06-1795-14收稿日期:2022-02-13基金项目:国家自然科学基金项目(12072027、11532002)AttitudePursuitGuidanceLawforConingMotionStabilityofSpinningMissilesSONGJinchao,ZHAOLiangyu(SchoolofAerospaceEngineering,BeijingInstituteofTechnology,Beijing100081,China)Abstract:Toaddresstheproblemofconingmotioninstabilityofspinningmissilesinducedbytheintroductionofthestrapdownseekerandattitudepursuitguidancelaw,thedynamicmodelofthestrapdownseekerinthenon-spinningmissilecoordinatesystemisderived,andthemathematicalmodeloftheattitudepursuitguidanceandcontrolsystemincomplexformisestablished.Theresponsedelayoftheseekerandthegyroscale-factorerrorareconsideredunderdifferentspinningratesanddampingloopgains.Thestabilityofthespinningmissile'scontrolandguidancesystemisanalyzed,andtherangeofthecorrespondingcharacteristicparametersaresolvedbynumericalmethods.Theresultsshowthatthelargerthedelayangleoftheseekeris,thesmallertheupperlimitoftheguidanceloopgainthatcanstabilizethesystemis.Whenthegyroscale-factorerrorcoefficientisgreaterthan1,theupperlimitoftheguidanceloopgainbecomelarger;whenthescale-factorerrorcoefficientislessthan1,theupperlimitbecomessmaller.Keywords:spinningmissile;coningmot...