Post on 24-Feb-2018
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MECH 4010/4015: Design Review Package
In partial full!ent "f t#e re$uire!ents "f t#e Mec#anicalEngineering seni"r %ear &esign pr"'ect "f a Magnetic (evitati"n
&e!"nstrati"n &evice
)ea! *11+u%uan (inMarl"n McC"!,ie-'a% Puppala
.ia"&"ng ang
Dept "f Mec#anical EngineeringDal#"usie niversit%
23r&ct",er 2013
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21st ct",er 2013
)ea! 11
Depart!ent "f Mec#anical Engineering
Dal#"usie niversit%
Subject: Invitati"n t" 6eni"r 7ear Design Review Panel f"r )ea! 11
e w"ul& like t" re$uest %"ur participati"n in a 6eni"r Design Pr"'ect Review
!eeting "n +ri&a% ct",er 25 2013 fr"! 11:30 t" 12:30
ur tea! is w"rking "n t#e &esign an& &evel"p!ent "f a Magnetic (evitati"n
De!" f"r t#e Mec#anical Engineering c"urse C"ntr"l 6%ste!s II -ttac#e& t"
t#is invitati"n are an agen&a f"r t#e &esign review t#e pr"'ect sc"pe
&eniti"n preli!inar% re$uire!ents s"!e inf"r!ati"n "n "ur current
pr"gress an& a gra&ing sc#e!e f"r t#e review
)#e purp"se "f t#e &esign review is t" intr"&uce "ur pr"'ect its preli!inar%
re$uire!ents an& anticipate& c#allenges In a&&iti"n t#e &esign review is
!eant t" initiate &iscussi"n "n t#e pr"'ect an& t" receive pr"fessi"nal
fee&,ack "n "ur current appr"ac# t" a s"luti"n
7"ur participati"n in t#e &esign review is vital t" t#e success "f t#e review
an& "ur pr"'ect If %"u #ave an% $uesti"ns a,"ut t#e review please feel free
t" c"ntact an% !e!,er "f "ur tea! ur c"ntact inf"r!ati"n is as f"ll"ws:
+u%uan (in f%3308839&alca
Marl"n McC"!,ie!r5;2289&alca
-'a% Puppala a';48489&alca
.ia"&"ng ang
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MECH 4010/4015: Design Pr"'ect I
Agenda
11:30AM 11:35AM Introductory Remarks
elc"!e
>r"up Me!,ers ? 6upervis"r Intr"&ucti"n
11:35AM 12:00PM Project Oer!e"
Pr"'ect @ackgr"un& an& 6c"pe
Pr"'ect Re$uire!ents
-nticipate& C#allenges
Current Pr"gress
12:00PM 12:25PM O#en $!scuss!on
Auesti"ns ? -nswers
+ee&,ack
12:25PM 12:30PM %&os!ng Remarks
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Project 'ackground ( Sco#e
De!"nstrati"ns pr"vi&e t#e "pp"rtunit% f"r stu&ents t" pre&ict t#e"retical
"utc"!es "f real life applicati"ns "f c"urse !aterial w#ic# in turn all"w t#e!t" c"nr! t#eir initial un&erstan&ing "f t#"se sa!e c"ncepts @% !aking a
pre&icti"n stu&ents &evel"p an e
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Thus, the scope of our project is to design and build a portable and
compact device that magnetically levitates an object to
demonstrate the dierent design theories presented in MECH49
!ystems ""
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$es!gn Re)u!rements
)#e !ain purp"se "f t#e pr"'ect is t" &esign an& ,uil& a p"rta,le c"ntr"l
s%ste! &e!"nstrati"n platf"r! t" !agneticall% levitate an ",'ect )#e
&e!"nstrati"n &evice !ust ,e capa,le "f i!ple!enting t#e vari"us c"ntr"l
&esign t#e"ries presente& in t#e Mec#anical Engineering c"urse 6%ste!s II
MECH 4=00F at Dal#"usie niversit%
6ince t#e s%ste! is use& f"r pe&ag"gical &e!"nstrati"n it !ust ,e viewa,le
fr"! a &istance an&/"r using ca!eras In a&&iti"n t#e &evice s#all n"t
eIF
c"nse$uentl% t#e &evice s#all re$uire n" a&&iti"nal pr"gra!!ing ,% an%
user )#e &evice s#all ,e capa,le "f presenting t#e c"ntr"l s%ste!s "utput
"n a gure t#at superi!p"ses t#e &esire& si!ulate& !anipulate& an&
!easure& c"ntr"ller varia,les an& "t#er inf"r!ati"n suc# as ,"&e
&iagra!s an& %$uist pl"ts )#e c"st "f t#e &esign s#"ul& n"t e
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Ant!c!#ated %*a&&enges
Pr"gra!!ing !icr"c"ntr"ller
o )ea! #as previ"us pr"gra!!ing e
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%urrent Progress
+enera& System Sc*emat!c
,P*oto courtesy o-:
*tt#:..!mages*ack/us.a.!mg11.22.ca#turea!d/#ng
Researc* on magnet!c &e!tat!on
It is p"ssi,le t" calculate t#e !a 1= wire at a lengt# "f 338
feet )#e !a
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s#"p an& a suita,le sp""l "f wire f"r sale "n e@a%
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Se&ect!on and Pre#arat!on o- M!crocontro&&er
It was &eter!ine& t#at a !icr"c"ntr"ller unit MCF w"ul& ,e nee&e& t"
facilitate c"ntr"l "f t#e electr"!agnet an& retrieval "f s"!e kin& "f fee&,ack
eg p"siti"n "f t#e levitate& ",'ectF f"r t#e s%ste! t" w"rk as re$uire& Itwas furt#er &eter!ine& t#at "ur "pti"ns f"r MCs were li!ite& ,ase& "n
availa,le t""l,"
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sens"r is place& "n t#e "t#er si&e )#e s%ste! is pr"gra!!e& in suc# a wa%
t#at it w"ul& let !"re current int" t#e electr"!agnet t" increase t#e
strengt# "f t#e !agnetic el& ar"un& t#e c"ilF if t#e ,all is !"ving awa% fr"!
t#e range "f (ED - !a'"r li!itati"n in using t#is t%pe "f sens"r is cause& ,%
t#e siKe "f t#e (ED arra% w#ic# li!its t#e range "f &etecta,le !"ti"n
-n"t#er t%pe "f sens"r c"nsi&ere& f"r t#e &esign is t#e Hall EBect sens"r It
pri!aril% &etects t#e !agnetic strengt# "f t#e el& t#at passes t#r"ug# it
)#e sens"r is place& at t#e ,"tt"! "f t#e electr"!agnet an& it !easures t#e
c"!,ine& el& strengt# "f t#e electr"!agnet an& levitating ",'ect )#e
sens"r all"ws f"r t#e c"ntr"l s%ste! t" ,e pr"gra!!e& in suc# a wa% t#at it
w"ul& let !"re current int" t#e electr"!agnet if t#e strengt# !easure!ent
,% t#e sens"r is l"w )#e !a'"r li!itati"n wit# t#is t%pe "f sens"r is t#at it
re$uires a reference ta,le "f !agnetic strengt# versus t#e c"rresp"n&ing
p"siti"n "f t#e levitate& ",'ect
t#er t%pes "f sens"rs t#at can ,e use& are (JD) an& i!age sens"rs +urt#er
researc# is nee&e& t" un&erstan& t#eir suita,ilit%
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4!gure 1 Magnet!c 6e!tat!on 7rack des!gn
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4!gure 2 S!ng&e e&ectromagnet des!gn "!t* #*otoe&ectr!c sensor
4!gure 3 S!ng&e e&ectromagnet des!gn "!t* 8a&& 9ect sensor
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4!gure ; $oub&e e&ectromagnet des!gn "!t* 8a&& 9ect sensor
4!gure 5 S!ng&e mu&t!#&e co!& e&ectromagnet des!gn "!t* 8a&& 9ect
sensor
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4!gure
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4uture P&ans
ur current plans inclu&e t#e f"ll"wing:
M"re researc# "n eBects "f electr"!agnet c"re siKe an& !aterial wire
!aterial an& "perati"nal currents
Design ,l"ck &iagra! "f s%ste!
Design c"ntr"lling electrical circuit
Deci&ing "n all t#e"ries t" ,e &e!"nstrate& ,% s%ste!
6electi"n "f sens"r ,ase& "n !ec#anical &esign "f &evice
)est retrieval an& pl"tting "f &ata fr"! sens"rs fr"! M-)(-@ t#r"ug#
-r&uin"
@uil& an electr"!agnet pr"t"t%pe ,ase& "n calculate& t#e"ries f"r
levitati"n ,% en& "f "ve!,ero )" ,e p"were& ,% a v"lt!etero )" facilitate testing f"r a c"rrelati"n ,etween !agnetic el&
strengt#/input signal an& p"siti"n "f t#e levitate& ",'ecto )" &eter!ine an "pti!al ",'ect f"r levitati"n
C"ntr"l electr"!agnet fr"! M-)(-@ an& -r&uin"
Preparati"n "f @ill "f Materials f"r &evice
o Plan f"r lea& ti!e in "r&ering parts
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