资源描述：
《FUNdaMENTALs Topic 7 - Power Systems .pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、FUNdaMENTALSofDesignTopic7PowerSystems©2008AlexanderSlocum7-01/1/2008PowerSystemsaboutothertypesofactuatorsformoreadvanceddesigns!Inthisbook,thefirstfourchaptersfocussedondevelopingstrategiesandoverallconceptsformachinesThenextstepistoconsiderenergystoragemeth-withmotionstoachie
2、vethem.Beforedelvingintomoreods,whichincludemechanicalsprings,electricbatter-mechanicaldetail,itisimportanttoconsiderhowtheies,andcompressedairbottles.Umbilicals,whichintendedmotionswillbepowered.Infact,whencreat-deliverelectricityandcompressedair,mayalsobeingamachineconcept,one
3、ofthemostfundamental,available.Thecontrolofenergyintoanactuatorwillandlimiting,issuesispower:Howcanpowerbestbealsodirectlyaffectmachineperformance.Forexample,stored,used,andcontrolled?Perhapsmostimportantly,amotorcanbecontrolledbyamechanicalswitchthatonceyouunderstandthetypesofp
4、owersystemsthatareeitherturnsitonoroff(bang-bangcontrol),orapropor-available,howcanyoubestmanagepowerasaprecioustionalcontrollerthatenablesyoutocontrolthespeedofresourceforyourmachine?themotor.ThefirststepistoconsiderthedifferenttypesofWithanunderstandingofthesebasicissues,themo
5、torsthatareavailable.Amotorisadevicethatcon-designengineercanstarttoimaginehowthemachinevertsstoredenergyintomechanicalwork.Theenergymightbepowered.Inordertoallocatescarceresources,maybeelectrical,mechanical,orchemical.Theoutputthedesignengineermustcreateandmanageapowerofamotoro
6、ftengoesintoadevicesuchasalinkage,budgetforthemachine.Thepowerbudgetkeepstrackgearbox,orleadscrew1.Therearemanytypesofofallactuators’powerneedsasafunctionoftimetomotors,fartoomanytodiscussindetailhere,includingmakesurethatdemanddoesnotexceedsupply!theverymotorsoflifeitself.2Henc
7、ethischapterwillconsidersimpleelectromagnetliftingsystems,dcbrushedmotors,solenoids,andpneumaticcylinders.Itisassumedthatthereaderwillthenbepsychedtolearn1.ThesepowertransmissiondevicesarediscussedinChapters4-6.2.Seeforexample,T.Atsumi,“AnUltrasonicMotorModelforBacterialFlagella
8、rMotors”,J.Theo.Biol.(2001)213,31-51Topic7Power
