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All Journal Rotasi Rekayasa Mesin
Rama Dwi Prayoga
Jurusan Teknik Mesin, Fakultas Teknik, Universitas Diponegoro
Mechanical Engineering

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SIMULASI ALIRAN UDARA DALAM RAM-AIR INTAKE PADA SEPEDA MOTOR SPORT DENGAN MENGGUNAKAN COMPUTATIONAL FLUID DYNAMIC Utomo, MSK Tony Suryo; Prayoga, Rama Dwi
ROTASI VOLUME 14, NOMOR 4, OKTOBER 2012
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1269.831 KB) | DOI: 10.14710/rotasi.14.4.8-14

Abstract

Peningkatan tekanan statik yang dihasilkan ram-air intake pada sepeda motor sport diteliti dengan menggunakan computational fluid dynamic (CFD).Desain ram-air intake Yamaha YZF-R6 tahun produksi 1999-2002 dan Kawasaki ZX-9 tahun 1992 menjadi rujukan pada pemodelan ram-air intake dalam penelitian ini.Metode komputasi yang digunakan yaitu k-ε realizable didapat dengan memvalidasi penelitian dari T.S. Cheng dan W.J. Yang mengenai simulasi numerik aliran turbulen berseparasi serta bersirkulasi kembali di dalam sebuah saluran. Dari simulasi yang telah dilakukan terhadap ketiga model ram-air intake yang telah didesain yaitu Ram 1, Ram 2, dan Ram 3 diperoleh hasil bahwa peningkatan tekanan statik untuk masing-masing model ram-air intake sebesar 1.457,57 Pa, 1.482,42 Pa, dan 1.537,82 Pa untuk aliran kecepatan 44 m/s serta 4.569,49 Pa, 4.575,30 Pa, dan 4.649,09 Pa untuk aliran kecepatan 83 m/s (dimana nilai tekanan terukur pada tekanan gauge).Peningkatan tekanan statis menuju ruang bakar memiliki efek positif pada tenaga mesin, baik karena tekanan itu sendiri maupunmass flow udara yang lebih besar memberikan suplai bahan bakar yang besar pula sehingga sistem pembakaran dalam ruang bakar akan menghasilkan ledakan/gaya dorong lebih besar untuk mendorong piston bergerak ke TMB (titik mati bawah) memutar poros engkol sepanjang langkah torak yang pada gilirannya daya motor akan meningkat.
ANALISIS KEKUATAN STRUKTUR SQUARE CHAMBER INJECTION MULTICASTING PYROGENIC IGNITER MENGGUNAKAN FINITE ELEMENT ANALYSIS (FEA) Prayoga, Rama Dwi; Prasetyo, Ichsan Dwi; Mahdiyyah, Maharani Inas
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1726

Abstract

It is necessary to analyze the structural strength of the square chamber component in the design of injection multicasting pyrogenic igniter to ensure that the structural components of the chamber are able to withstand loads from hydraulic piston pressure. Four square chamber configurations were analyzed using the Autodesk Inventor software FEA method. Load simulations are given at 10,000 N, 50,000 N, and 100,000 N. Von Mises stress, safety factor, and displacement are obtained for each design configuration. Where it is known that the structural design of the square chamber design configurations 1, 2, and 3 has optimal reliability at a load capacity of up to ± 10,000 N. As for the structural design of the square chamber design configuration 4, it is known to have optimal reliability at a load capacity of 50,000 N. However it is possible that it is reliable enough to withstand load capacities up to ± 100,000 N.
ANALISIS KEKUATAN STRUKTUR SQUARE CHAMBER INJECTION MULTICASTING PYROGENIC IGNITER MENGGUNAKAN FINITE ELEMENT ANALYSIS (FEA) Prayoga, Rama Dwi; Prasetyo, Ichsan Dwi; Mahdiyyah, Maharani Inas
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1726

Abstract

It is necessary to analyze the structural strength of the square chamber component in the design of injection multicasting pyrogenic igniter to ensure that the structural components of the chamber are able to withstand loads from hydraulic piston pressure. Four square chamber configurations were analyzed using the Autodesk Inventor software FEA method. Load simulations are given at 10,000 N, 50,000 N, and 100,000 N. Von Mises stress, safety factor, and displacement are obtained for each design configuration. Where it is known that the structural design of the square chamber design configurations 1, 2, and 3 has optimal reliability at a load capacity of up to ± 10,000 N. As for the structural design of the square chamber design configuration 4, it is known to have optimal reliability at a load capacity of 50,000 N. However it is possible that it is reliable enough to withstand load capacities up to ± 100,000 N.
Co-Authors Mahdiyyah, Maharani Inas MSK. Tony Suryo Utomo Prasetyo, Ichsan Dwi