?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISIS+TEGANGAN+DAN+EKSPANSI+VOLUME+PADA+TANGKI%0D%0ATOROIDAL+BERPENAMPANG+OVAL+DENGAN+BEBAN+TEKANAN%0D%0AINTERNAL&rft.creator=IRFAN+MAHYUNIS%2C+1015021006&rft.subject=+&rft.description=abstrak+indonesia%0D%0APersediaan+Bahan+Bakar+Minyak+(BBM)+yang+semakin+berkurang+membuat%0D%0Apemerintah+berusaha+mengkonversi+BBM+ke+Bahan+Bakar+Gas+(BBG).+Untuk+itu%2C%0D%0Adibutuhkan+penelitian-penelitian+yang+mendukung+program+pemerintah+tersebut.%0D%0ASalah+satu+bidang+penelitiannya+yaitu+dalam+bidang+tangki+penyimpanan+BBG%0D%0Adalam+kendaraanya.+Berdasarkan+penelitian+sebelumnya+diketahui+bahwa+bentuk%0D%0Atoroidal+lebih+baik+dalam+menahan+stress+dibandingkan+bentuk+silinder+yang+ada%0D%0Asaat+ini.+Oleh+karena+itu%2C+penelitian+diperluas+dengan+memfungsikan+bentuk%0D%0Atoroidal+berpenampang+oval+kedalam+kendaraan+roda+empat.+Secara+Teori%0D%0AMembran+bahwa+semakin+besar+Rasio+R%2Fr%2C+maka+semakin+tinggi+limit+tekanannya%2C%0D%0Atetapi+di+satu+sisi+semakin+besar+Rasio+R%2Fr+maka+semakin+kecil+volumenya.+Dalam%0D%0Amenentukan+rancangan+tangki+toroidal+terbaik%2C+maka+dipilih+perbandingan+jari-jari%0D%0Adan+ovality+terbaik+yang+dapat+memberikan+limit+tekanan+tertinggi+pada+tangki%0D%0Atoroidal.+Hasil+analisis+menunjukkan+bahwa+limit+tekanan+tertinggi+diberikan+oleh%0D%0Arasio+R%2Fr+3%2C4.+Untuk+simulasi+penampang+ovality+baik+in-plane+maupun+out-plane%0D%0Amenunjukkan+bahwa+penampang+dengan+ovality+0%25+menghasilkan+limit+tekanan%0D%0Ayang+paling+tinggi+dalam+menahan+stress+maksimum+tangki.+Berdasarkan+simulasi%0D%0Apada+ukuran+tersebut+didapat+bahwa+tangki+ini+memiliki+limit+tekanan+mencapai%0D%0A1%2C089+kali+tekanan+yield+(py)+dan+pertambahan+volume+sebesar+0%2C238%25.%0D%0AKata+Kunci+%3A+tangki+toroidal%2C+limit+tekanan%2C+ovality%0D%0A%0D%0Aabsrtract+inggris%0D%0AIn+order+to+reduce+the+Public+Service+Obligation+(PSO%2FSubsidi)+on+oil+fuel%2C+the%0D%0Agovernment+of+Indonesia+proposed+to+convert+oil+fuel+to+gas+fuel+(LPG)+for%0D%0Apassenger+cars.+To+support+this+program%2C+studies+are+needed+to+develop+technology%0D%0Ain+combustion+system.+One+of+the+systems+is+storage+tank+that+must+be+carefully%0D%0Adesigned+to+avoid+burst+type+failure.+Some+previous+research+shows+that+circular%0D%0Across-section+toroidal+tank+can+withstand+higher+limit+pressure+than+an+equivalen%0D%0Acylindrical+shape.+In+this+research%2C+studies+of+the+pressurized+toroidal+tank+is%0D%0Aextended+for+oval+cross-section+that+might+be+needed+because+of+space+restriction.%0D%0AThe+toroidal+tank+will+be+placed+on+the+position+of+spare+wheel+of+a+passenger+car.%0D%0AMembran+theory+of+toroidal+shell+shows+that+the+higher+the+radius+ratio+(R%2Fr)+the%0D%0Ahigher+the+limit+pressure%2C+however+the+corresponding+volume+become+small.+To%0D%0Acater+for+this%2C+geometry+optimation+was+performed+and+radius+ratio+of+3.4+was%0D%0Aobtained+based+on+circular+cross-section.+Studies+on+the+influence+of+ovality+on%0D%0Alimit+pressure+were+then+extended+and+the+results+shows+that+ovality+of+0%25%0D%0A(circular+cross-section)+withstand+highest+limit+pressure+both+for+in-plane+and+outof-%0D%0Aplane+ovality+i.e.%2C+1.089+times+pressure+to+yield+(py).+Corresponding+volume%0D%0Aexpansion+was+0.238%25.%0D%0AKeywords+%3A+toroidal+tank%2C+limit+pressure%2C+ovality&rft.publisher=Fakultas+Teknik&rft.date=2014-09-23&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F1%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F2%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F3%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F4%2FLEMBAR%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F5%2FLEMBAR%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F6%2FLEMBAR%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F7%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F8%2FMOTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F9%2FPERSEMBAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F10%2FSANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F11%2FDAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F12%2FDAFTAR%2520TABEL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F13%2FDAFTAR%2520GAMBAR.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F14%2FBAB%2520I.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F18%2FBAB%2520II.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5386%2F15%2FBAB%2520III.pdf&rft.format=text&rft.identifier=http%3A%2F%2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