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All Journal Jurnal Rekayasa Mesin Eksergi: Jurnal Teknik Energi Journal of Mechanical Engineering and Applied Technology
Ragil Tri Indrawati
Politeknik Negeri Semarang
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Effect of variations fuel heating on fuel consumption for the Suzuki SJ410 engine Eni Safriana; Muhammad Showi Nailul Ulum; Ragil Tri Indrawati; Farika Tono Putri
Eksergi : Jurnal Teknik Energi Vol 19, No 2 (2023): MAY 2023
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v19i2.4471

Abstract

AbstractMeans of transportation is one of the needs to make the movement from one place to another. One of the commonly used transportation is motorized vehicles that run on gasoline. Fuel consumption affects the power generated as well as the costs incurred and the time required by motorized vehicles to carry out their functions. This research method uses true experimental design research to conduct performance tests using a Suzuki SJ410 motorized vehicle with an F10A type engine and a capacity of 970 cc.  The test was carried out by carrying out the treatment of heating premium fuel through a copper pipe that was installed on the radiator upper tank with a length of 450 mm (MOD 1) and 900 mm (MOD 2) and also under standard conditions (STD). The results obtained stated that fuel consumption under standard conditions (STD) fuel consumption for 26.03 s/50 ml, for a pipe length of 450 mm (MOD 1) for 31.90 s/50 ml and for a pipe length of 900 mm ( MOD 2) for 33.27 s/50 ml.  
The Influence Of Using A Sleeve Machine On The Production Cost Of Brake Shoe Products In The Die Casting Department Of PT XYZ Timotius Anggit Kristiawan; Andryana Dwiandara Wibowo; Trio Setiyawan; Ragil Tri Indrawati
Journal of Mechanical Engineering and Applied Technology Vol 2, No 1 (2024): VOLUME 2 ISSUE 1 YEAR 2024 (MARCH 2024)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jmeat.v2i1.5475

Abstract

The process of finishing brake shoe products in PT XYZ's die casting department experienced waste using M steel shot 230 sand which reached 4,125 kg throughout 2020 and the amount of sand that fell to the floor was 36 kg per shift. The reason is that the unloading process is still manual by shaking the brake shoe jig for 2 seconds/jig then immediately pouring the brake shoe into the polybox which has holes and does not have a sand container. The use of a sieving machine is expected to reduce lost sand so that productivity can increase. The test parameters are the rotation of the motor which is regulated through an inverter of 5.5 Hz, 6 Hz, and 6.5 Hz for the time of the brake shoe sifting process, as well as the amount of sand scattered and carried by the brake shoe against the cost of purchasing sand. The results showed that productivity increased by 5.56%, the cost down of purchasing sand by up to 75.40%, and environmental cleanliness increased by 92.87%. The increase above based on Pareto analysis is included in the significant category because it meets the 20/80 rule.
Mathematical and 3D Mechanical System Simulation of Arm Robot Modelled as Double Pendulum Farika Tono Putri; Ragil Tri Indrawati; Eni Safriana; Wahyu Isti Nugroho; Timotius Anggit Kristiawan; Rizkha Ajeng Rochmatika
Jurnal Rekayasa Mesin Vol 18, No 3 (2023): Volume 18, Nomor 3, Desember 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i3.5110

Abstract

Lengan robot telah banyak digunakan dan penelitian ekstensif terkait manipulator telah dilakukan. Permasalahan pada manipulator robot lengan adalah pengendalian dan stabilisasinya. Pemodelan matematis dapat membantu mengendalikan lengan robot dengan parameter yang mudah untuk ditentukan. Penelitian ini bertujuan untuk membandingkan simulasi pemodelan matematis dan simulasi sistem mekanik 3D manipulator yang dimodelkan dengan pendulum ganda. Simulasi dilakukan dengan bantuan MATLAB/Simulink dan MATLAB/Simscape Multibody. Metode penelitian meliputi: (i) Pembentukan persamaan Lagrange untuk manipulator, (ii) Membuat blok MATLAB/Simulink, (iii) Membuat blok MATLAB/Simscape Multibody, (iv) Mendefinisikan parameter matematis dan fisika dan (v) Menjalankan simulasi dan menganalisis hasil. Hasil dari penelitian ini menunjukkan simulasi matematis lengan robot berdasarkan persamaan Lagrange konsisten dalam bentuk gelombang sinus. Sedangkan untuk simulasi 3D hasil grafiknya tidak konsisten. Namun pada hasil simulasi 3D yang parameter lengan robotnya hampir sama, hasilnya menunjukkan tren tertutup.
Co-Authors Andryana Dwiandara Wibowo Farika Tono Putri Muhammad Showi Nailul Ulum Rizkha Ajeng Rochmatika Safriana, Eni Timotius Anggit Kristiawan Timotius Anggit Kristiawan Trio Setiyawan Wahyu Isti Nugroho