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All Journal Rekayasa Mesin Turbo : Jurnal Program Studi Teknik Mesin
Muh. Nurkoyim Kustanto
Universitas Jember
Mechanical Engineering

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Analisis optimasi topologi desain support bracket pada steering main shaft mobil TITEN EV-2 Dinasti Achmad Tristanto; Santoso Mulyadi; Muh. Nurkoyim Kustanto; Agus Triono; Intan Hardiatama
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2388

Abstract

The KMHE competition which focuses on optimizing energy in developing cars is held as a form of contribution to overcoming the problem of dwindling energy sources. To get a cell phone with low energy consumption, one alternative is to design a cell phone as often as possible. This research examines the effectiveness of topology optimization methods in making lightweight component designs while maintaining the ability to accept loads when applied. The components that are being optimized are the support brackets on the main shaft steering of Car TITEN EV-2 which are produced using additive manufacturing with PLA+ materials. The load borne by the design is the load when the car is braking and turning. Two Topology Optimization experimental methods were carried out based on the loading arrangement. The first method is carried out by combining two topological optimization results based on loading to produce the final design. The second method is carried out by applying the two loadings simultaneously to the TO process. As a result, the second TO method showed very good results compared to the first method and was redesigned to produce a new design that was ready for use. The results of the new design have a mass of 34.25% lower than the original design. The FEA simulation results also show the results of increasing design strength after topology optimization. The maximum von-mises voltage drop of the new design in the case of braking, turning and combined loading (braking and turning) respectively is 12.56 MPa, 11.64 MPa and 17.99 MPa compared to the original design which is 30.16 MPa, 26.19 MPa and 51.9 MPa.
KINERJA DAN EMISI MESIN DIESEL 1 SILINDER BERBAHAN BAKAR CAMPURAN BIODIESEL NYAMPLUNG DAN ETANOL Nasrul Ilminnafik; Atlanta Iwananda; Muh. Nurkoyim Kustanto; Rima Zidni Karimatan Nisa
Jurnal Rekayasa Mesin Vol. 14 No. 2 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i2.1335

Abstract

Research has been carried out on the effect of biodiesel and ethanol fuel mixtures on diesel engine performance and emissions. Ethanol (C2H5OH) is a type of alcohol that can improve the characteristics of biodiesel. The effect of ethanol on engine performance was investigated by adding B30 (a mixture of 30% nyamplung biodiesel (calophyllum inophyllum) and 70% petrodiesel). The concentration of ethanol added to B30 is 10% v/v which is called the B30E10 mixture. The composition of the fuel mixture is B0 (petrodiesel), B30, B30E10 and Pertadex. The research was conducted on a single cylinder four stroke diesel engine with a natural air system and coupled to a generator that functions as a dynamometer. Three times the test was carried out for each load applied to the engine varying from 0, 200, 400, and 600 W at a constant rotation speed of 1700 rpm. The research results that the constant engine speed method and variations in lamp load produce torque values (Nm) and effective power (kW) which tend to be the same between fuels, this happens because it is influenced by the governor mechanism. The highest fuel consumption occurred at the addition of 10% ethanol (B30E10). The lowest thermal efficiency occurs in B30E10. Exhaust emissions of carbon monoxide decreased with the addition of 10% ethanol.
Co-Authors Agus Triono Atlanta Iwananda Dinasti Achmad Tristanto Intan Hardiatama Nasrul Ilminnafik Rima Zidni Karimatan Nisa Santoso Mulyadi