欢迎来到天天文库
浏览记录
ID:40844473
大小:659.64 KB
页数:10页
时间:2019-08-08
《Victor J. Wagner Richard Malnory华格纳malnory胜利J》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、RapidOpto-MechanicalDesignUsingPro/E,MSC/NASTRANandCodeV.VictorJ.WagnerRichardMalnoryK.Scott.EllisRaytheonMissileSystemsCompanyP.O.Box11337Bldg840,N0109BTucson,AZ85734-11337ABSTRACT:ThemechanicaldesignofOpticalsystems(Opto-MechanicalDesign)istypicallyconcernedwithm
2、inimizingtheimpactofthemechanicalstructureandenvironmentsonopticalperformance.Structurallyinsignificantloadsmayinduceunacceptablemotionand/ordistortionintotheopticalelements,whicharesummedalongtheopticalpathresultingintotalimagebluranderror.Opticalsystemdesignsaret
3、hereforeextremelysensitivetomountingconfigurationsandstructuraldynamiccharacteristicsofthemechanicalsystem.Aprocessforefficientdesigninvestigationisdiscussedthatprovidesrapidsystemandindividualopticalelementerrorpredictionsformechanicalsystemdesign.Topicsincludedis
4、cussionsoffundamentalOpto-Mechanicaldesignconsiderations,Pro/Emodelmodificationtofacilitateautomeshtechniques,variousautomeshapproachesusingMSC/PATRANandPro/Engineer,tet4vstet10elementperformanceandaccuracywithMSC/NASTRAN,LineOfSight(LOS)errorpredictions,andZernike
5、polynomialcalculationsforopticalsurfaceaberrationsusingtheMSC/OPOLYutilityandCodeV.________________________________________________________________________________Email:vjwagner@west.raytheon.com,rbmalnory@west.raytheon.com,ksellis@west.raytheon.com1INTRODUCTION:Ac
6、ommonconcernformechanicalengineersworkingonpackagingandmountingopticalsystemsistheinherentproblemofthemechanicalstructuredistortingtheopticalpathandthustheimage.Mountingrequiresphysicallyrestrainingtheopticalelements,eithermirrorsorlenses,byvarioustechniquesintoaco
7、mpletemechanicalsystem.Anymechanicalloadordisplacementimposedonthesystemistosomedegreetransferredintotheopticalelements,resultingindistortionoftheelementsfromtheirbaselineshapeandposition.Typically,opticalsystemsaredesignedbyopticsengineerswithoutfullaccountingofde
8、tailedmechanicalenvironmentalrequirementsormountingconstraintssuchaspackaging.Thentheelementpositioningandrestraintmethodsareiteratedbythemechani
此文档下载收益归作者所有