Strand 7 Assignment - Computational Mechanics PDF

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Strand7 Assignment MECH4400–Comput at i onalMechani c s C31831 72–J as onAr ens c 31 83127@uon. edu. au

St r and7As s i gnment 

Strand7 Assignment MECH4400–Comput at i onalMechani cs

Introduction Theai m oft heas s i gnme nti st oc r ea t eamode lofac ar r amp( pi c t ur e dr i ght )i nus i ngt hebe am fini t ee l eme ntme t hod andt hepl a t efini t ee l e me ntme t hod. Thec arr a mpi sas t r uc t ur et ha ti sus e dpr e domi na nt l yby homeme c hani c sal l owi ngt he mt or a i s et hehei ghtoft he i r ve hi c l ef ore as ya c c e s st heunde r s i deoft heve hi c l e .I npr ac t i c e t her ampsa r eus e di npai r swi t he i t he rt hef r ontorr e arwhe e l s dr i ve ni nt ot her amp.Theve hi c l es t opswhent het yr ei sl oc a t e dbe t we ent heups i dedown25x2 5 x5 angl ea ndt heangl ene art hee ndoft hehor i z ont als ec t i onoft her ampa tt het opoft hepl a t f or m. Themode l smus ts i mul a t eandpr ovi deval ue soft hedefle c t i onands t r e s s e soft her ampwhe ni t i se xpe r i e nc esl oadi ngvi ave hi c l edr i vi ngup.I twi l lal s opr ovi det her e s ul t swhent heve hi c l ei s s t a t i onar yont opoft her amp. Thet womode l swi l lt he nbec ompar e da gai ns te ac hot he r ,andanydi ffer e nc e si ndi s pl ac e me nt ands t r e s s e swi l lbedi s c us s e d.

Method Eac hoft hemode l s ,be am andpl a t e ,wi l lbepr epar edi nafini t ee l eme nts of t wa r e ,St r a nd7.Eac h mode lwi l lbeaha l fmode l , ast hemode li ss ymme t r i cont hezaxi s . Thi swi l lhe l ps i mpl i f yt hemode l f orbot hbui l di ngpur pos e sandunde r s t andi ngr e s ul t s . Eac hoft he25x25x 5angl ewi l lha vei t sownl oadc as es howi ngt hee ffec toft hel oa dappl i e dt oi t , vi at hec ar ’ st yr eof500 kgasi tmove supt her amp.Anot he rl oa dc as ewi l lbec r e a t e dwe r et het yr ei s s t a t i onar ya tt het op.Thi sl oadwi l lbeequal l ydi vi dedbet we ent het wo25x25x5angl e .

Re s ul t s : 1

St r and7As s i gnme nt 

Models Beam:

Fi gur e1)Beam Model–Si deVi ew

Fi gur e2)Beam Model-I s omet r i c

Re s ul t s : 2

St r and7As s i gnme nt 

Plate:

Fi gur e3)Pl at eModel–Si deVi ew

Fi gur e4)Pl at eModel–I s omet r i c

Re s ul t s : 3

St r and7As s i gnme nt 

Results: Beam: Load Case 1: Hal ft hel oadappl i edbyt hewhee lwaspl ac e dont hefir s t25x25x5angl e .Thefigur ebe l ow s howst he di s pl a c e mentoft hi sbeam whendi s pl ac e menti si nc r eas e dby10%.

Fi gur e5)Di s pl ac ementofLoadCas e1

Fi gur e6)Axi alSt r es sofLoadCas e1

Re s ul t s : 4

St r and7As s i gnme nt 

Load Case 2: Hal ft hel oadappl i edbyt hewhee lwaspl ac e dont hes ec ond25x25x5angl e .Thefigur ebe l ow s hows t hedi s pl a c e me ntoft hi sbe am whe ndi s pl a c eme nti si nc r e as e dby10%.

Fi gur e7)Di s pl ac ementofLoadCas e2

Fi gur e8)Axi alSt r es sofLoadCas e2

Re s ul t s : 5

St r and7As s i gnme nt 

Load Case 3: Hal ft hel oadappl i edbyt hewhee lwaspl ac e dont hes ec ond25x25x5angl e .Thefigur ebe l ow s hows t hedi s pl a c e me ntoft hi sbe am whe ndi s pl a c eme nti si nc r e as e dby10%.

3

Fi gur e9)Di s pl ac ementofLoadCas e3

Fi gur e10)Axi alSt r es sofLoadCas e3

Re s ul t s : 6

St r and7As s i gnme nt 

Load Case 4: Thel oadappl i edbyt hewhe e lwaspl ac e dont hef our t h25x25x5angl e .Thefigur ebe l ow s howst he di s pl a c e mentoft hi sbeam whendi s pl ac e menti si nc r eas e dby10%.

Fi gur e11)Di s pl ac ementofLoadCas e4

Fi gur e12)Axi alSt r es sofLoadCas e4

Re s ul t s : 7

St r and7As s i gnme nt 

Load Case 5: Hal ft hel oadappl i edbyt hewhee lwaspl ac e dont hes ec ond25x25x5angl e .Thefigur ebe l ow s hows t hedi s pl a c e me ntoft hi sbe am whe ndi s pl a c eme nti si nc r e as e dby10%.

Fi gur e13)Di s pl ac ementofLoadCas e5

Fi gur e14)Axi alSt r es sofLoadCas e5

Re s ul t s : 8

St r and7As s i gnme nt 

Re s ul t s : 9...