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Contact Name
Mirmanto
Contact Email
dinamikateknikmesin@gmail.com
Phone
+6282111738971
Journal Mail Official
dinamikateknikmesin@gmail.com
Editorial Address
Jurusan Teknik Mesin, FT, Universitas Mataram, Jl. Majapahit no. 62, Mataram, NTB, 83125, Indonesia
Location
Kota mataram,
Nusa tenggara barat
INDONESIA
Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
Published by Universitas Mataram
ISSN : 2088088X     EISSN : 25021729     DOI : https://doi.org/10.29303/dtm.v14i1
The Dinamika Teknik Mesin is a peer-reviewed academic journal which publishes originally research papers or simulation/computational articles in all aspect of Mechanical Engineering such as energy conversion, materials, design and production/ manufacturing. The Dinamika Teknik Mesin publishes in two issues per volume annually appearing in June and December. Due to administrative constraints, then starting in January 2018, the Dinamika Teknik Mesin publishes the volume and issue in January and July. However, starting in 2020, the Dinamika Teknik Mesin publishes issues in April and October due to the new administration.
Articles 452 Documents
Studi eksperimental tentang pengaruh diesel particulate filter terhadap reduksi tingkat kebisingan mesin diesel empat langkah Warju, W.; Ariyanto, S. R.; Soeryanto, S.
Dinamika Teknik Mesin Vol 10, No 2 (2020): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v10i2.340

Abstract

The purpose of this research is to produce DPF technology made from copper plates and glass wool that can reduce the noise level of four-stroke diesel engine vehicles. This research is an experimental research where the object of research used is Isuzu Panther 1996. The research instruments used include the chassis dynamometer, sound level meter (SLM), and manometer. The data analysis technique used descriptive method and compared with the noise threshold in Minister of Environment Regulation No. 07 of 2009. The results showed that DPF Cu and 100 gr glass wool was able to reduce noise level by an average of 3.1% to 6.5%. At an engine speed of 3750 rpm, DPF Cu 20 mm, DPF Cu 15 mm, and DPF Cu 10 mm and 100 gr glass wool, each produced noise level of 101.5 dBA, 98.4 dBA, and 97.8 dBA. 
Analisa Delaminasi Pada Glass Fiber Reinforced Polymer Komposit Laminat Dengan Pembebanan Fatigue Astika, I Made
Dinamika Teknik Mesin Vol 2, No 1 (2012): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
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Abstract

 Delaminasi merupakan salah satu dari model kerusakan kritis yang terjadi pada komposit laminat. Delaminasi terjadi karena beberapa faktor seperti tegangan interlaminar yang tinggi dan konsentrasi tegangan pada lokasi retak atau kerusakan lain pada laminat. Jika suatu laminat diberi beban fatigue, delaminasi dapat tumbuh dengan kenaikan jumlah cycle dan bisa menyebabkan kerusakan total pada laminat. Jadi ada keterkaitan antara karakteristik pertumbuhan delaminasi komposit laminat dengan kondisi pembebanan fatigue. Pada penelitian ini diamati pertumbuhan delaminasi pada komposit laminat yang didasarkan pada perhitungan kemungkinan pertumbuhan delaminasi pada semua tingkat pembebanan selama siklus pembebanan fatigue.Penelitian ini adalah pengujian fatigue dengan pembebanan reverse bending dengan type specimen double cantilever beam (DCB). Pembuatan spesimen uji dilakukan dengan proses hand lay up dengan menggunakan dua lembar lamina berserat anyam (WR). Diantara kedua lamina disisipi dengan lembaran aluminium dengan ukuran 25 x 75 mm sebagai inisiasi retak. Ukuran specimen adalah 25 x 230 mm.Hasil penelitian menunjukkan bahwa laju perambatan retak mengalami penurunan pada jumlah siklus yang meningkat. Bertambahnya siklus mengakibatkan faktor intensitas tegangan (KI) dan energi yang dibebaskan (GI) mengalami penurunan. Berkurangnya energi yang dibebaskan dan faktor intensitas tegangan berpengaruh pada distribusi tegangan pada ujung retakan mengakibatkan laju pertambahan retak menurun.
Pemanfaatan limbah tandan buah kosong kelapa sawit sebagai penguat komposit untuk diaplikasikan sebagai bahan baku outer shell helm Standar Nasional Indonesia (SNI) Bismantolo, P.; Hestiawan, H.; Wardhani, F.; Utama, M.F.
Dinamika Teknik Mesin Vol 12, No 1 (2022): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v12i1.498

Abstract

Oil palm empty fruit bunch is abundantly available as waste from palm oil processing which is only used for boiler fuel and plant fertilizers. This study aims to investigate the utilization of oil palm empty fruit bunch as a composite reinforcement material to be applied as a raw material for the outer shell of Indonesian national standard (SNI) helmets. The materials used include oil palm empty fruit bunch, the polyester resin of BQTN yukalac, and the catalyst of MEKPO. The manufacturing process uses the hand lay-up technique by varying the fiber volume fractions 3, 6, 9, 12%, and therefore the fiber size passes mesh of 20 and 50. The tensile test uses the ASTM standard D 638 while the impact test uses the ASTM standard D 5942. Fiber volume fraction and fiber size affect the mechanical properties of oil palm fiber reinforced composites. The results of the tensile and impact tests showed that the highest tensile strength and impact toughness were obtained within the composite with a fiber volume fraction of 6% and a mesh of 50, which were 34.74 MPa and 60.21 kJ/m², respectively. In comparison with the tensile strength of the SNI helmet of 33.93 MPa, the oil palm empty fruit bunch fiber can be used as a composite reinforcement for the outer shell of the SNI helmet.
Unjuk kerja kulkas termoelektrik dengan rangkaian seri dan paralel pada beban air 1500 ml Ananta, Hendra; Padang, Yesung Allo; Mirmanto, M.
Dinamika Teknik Mesin Vol 7, No 2 (2017): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v7i2.157

Abstract

Along with the increase of human mobility, the portable refrigerator becomes very important because it can be used to store goods or drinks to be durable or cooler. Therefore, a refrigerator using thermoelectric is an option. Thermoelectric fridge besides easy to carry anywhere is also easy maintenance, durable, more compact, lightweight, no heavy rotating components, no use of freon and small power. Refrigerator research with thermoelectric has been done with series and parallel electric circuits to know the effect of the circuit difference to the performance of refrigerators. This study uses a mini fridge with an overall dimension of 40.8 cm x 32.6 cm x53.8 cm and with 2 thermoelectric modules TEC1-12706 model. The electrical power used for each circuit is about 12 W. The data retrieval in the test uses DAQ MX 9714 NI data logger which is connected to the PC using LabView program. The results show that the test research with a water load of 1500 ml results in the temperature of the refrigerator room of about 22.54oC for the series and 23.10oC for the parallel. While the value of COP obtained with the series circuit is 0.45 and with the parallel circuit is 0.4. There is no effect of the form of the circuit on the performance of the refrigerator.
ANALISIS KEAUSAN DAN WAKTU PENGEREMAN KAMPAS CAKRAM ASBESTOS DAN NON ASBESTOS DENGAN VARIASI BEBAN PENGEREMAN DAN BERAT PENGENDARA PADA SEPEDA MOTOR HONDA SUPRA X 125 CC Ali Mulahela, Sayid Khaidir; Catur, Agus Dwi; Pandiatmi, Pandri
Dinamika Teknik Mesin Vol 5, No 2 (2015): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
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Abstract

Brake system is an important thing of vehicle. Many kinds of brake pads presents by each factory. Brake pads made of asbestos and non asbestos material. Each of them have excess and lack. This research aims to know the performance of each type of brake pads so that it can show the excess and lack of each type of product. As user, we have to choose a product which will be used in our vehicle cleverly.The research be done by giving variations in load of brake and weight of rider at a constant speed. The load of brake used spring with the variation are 2 kg, 3 kg and 4kg. While, weight rider are varied with 54 kg and 111 kg.Research result shows that increasing load of pull brake led to increasing the value of worn out and a decline in the braking time, while increasing weight of the rider causes an increase in the value of worn out and braking time at all types of brake pad products. In dry condition, the lowest wear is 1,37x10-4 mm/second in non asbestos pads and the highest wear is 3,088x10-5 mm/second in asbestos pads. While, the smallest braking time is 28,79 seconds in asbestos pads and the biggest is 64,26 seconds in non asbestos pads. In wet condition, the lowest wear is 2,422x10-5 mm/second in asbestos pads and the highest wear is 7,716x10-5mm/second in non asbestos pads. While, the smallest braking time is 29,46 seconds in non asbestos pads and the biggest is 62,71 seconds in asbestos pads.
Uji performance turbin Savonius dengan penambahan konsentrator pada aliran air Alit, I.B.; Mara, I.M.; Susana, I.G.B.; Sapri, S.
Dinamika Teknik Mesin Vol 9, No 1 (2019): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v9i1.261

Abstract

Utilization of water energy is essentially using potential energy and kinetic energy, kinetic energy flow of water which is a transformation of gravitational potential energy is used to drive turbines or waterwheels, Savonius turbine has a good Self Starting so it can rotate the rotor even though the fluid speed is low, the same thing the speed of the water flow has a low speed. The purpose of this research is to know the influence of the number of blades on rotation of rotor (n), Torque (T), Rotor power (P), Coefficient of performance (CP), Efficiency system (ɳs), in this study the number of blades used are 2 blades, 3 blades and blades, the blades are then tested without the use of concentrator and by the addition of concentrator. The results of this study indicate that the turbine without concentrator or by using the addition of concentrator obtained the best performance on the number of blade 3 with average CP of 0.12 and 0.13 efficiency system of 9.83% and 11.75% then with the number of blades 2 with CP averaging of 0.10 and 0.11 of efficiency system of 8.73% and 11.00% and the number of 4 blades with CP averaged 0.06 and 0.07 and efficiency system of 3.91% and 4.76%. Using the addition of concentrator may increase the performance of the turbine in water flow savonius seen from the increasing value of CP and system efficiency at each number of blades tested.
APLIKASI METODE BREAK EVEN POINT PADA DESAIN TUNGKU GASIFIKASI BIOMASSA MULTI BURNER SEKAM PADI SEBAGAI PENGGANTI MINYAK TANAH DAN KAYU BAKAR MENUJU MASYARAKAT MANDIRI ENERGI DI DAERAH PULAU KECIL Wijana, Made; Joniarta, I Wayan; Nurchayati, Nurchayati
Dinamika Teknik Mesin Vol 4, No 1 (2014): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
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Abstract

 Dimasyarakat pulau kecil sering mengalami kesulitan dalam memasak karena langka dan mahalnya minyak tanah dan kayu bakar. Sedangkan tungku gasifikasi yang telah diteliti dan diapikasikan (gasifikasi biomassa single burner) , meskipun hasilnya sudah bagus , tetapi sulit diterima dimasyarakat karena pemasakan dilakukan langsung diatas tungku, sehingga keamanannya lemah karena bahaya terkena panas dinding tungku dan rancangan yang tinggi mengakibatkan kekhawatiran masyarakat, disamping itu sifatnya tidak bisa kontinyu dan pengapiannya tidak bisa dilakukan secara cepat, karena tungku dengan burner dirancang menjadi satu. Untuk itu maka pada program ini perlu dilakukan penelitian bagaimana merancang suatu tungku gasifikasi biomassa yang murah, mudah dan aman dalam pengoperasiannya dengan merancang bentuk tungku yang memiliki  multi burner dengan letak tungku dan burnernya terpisah, bagaimana merancang saluran penghantar dari tungku ke burner,dan bentuk burner yang sesuai sehingga dengan jauhnya tungku dan burner pengapian, keamanan dan kenyamanan masyarakat pulau kecil pengguna energi terbarukan (gasifikasi biomassa) terjamin, sehingga masyarakat mandiri energy di pulau kecil dapat diwujudkan..         Metode yang digunakan dalam penelitian ini adalah metode rekayasa nilai  untuk memilih satu alternatif  modifikasi pada tungku briket arang biomassa dan menganalisanya melalui lima tahap rencana kerja yang meliputi (1) tahap informasi, (2) tahap kreatif, (3) tahap analisa, (4) tahap pengembangan dan (5) tahap presentasi.          Pada tahap analisa, dilakukan analisa terhadap 8 alternatif modifikasi ditambah 1 desain awal, dimana desain awal digunakan sebagai patokan dalam penilaian performansi. Hasil penentuan nilai pada tahap pengembangan diperoleh bahwa alternatif modifikasi ke-7, mempunyai nilai tertinggi yaitu1,142   dengan performansi 427,83, dan biaya Rp. 1.850.000,0. Alternatif ini memberikan keuntungan antara lain, kemudahan operasionalnya sangat meningkat dapat dilakukan pengisian berulang tanpa mengganggu nyala api (sistem kontinyu), dan pemadaman api dapat dilakukan dengan cepat tanpa  pembongkaran tungku (semi otomatis),  pengguna tidak perlu memasak diatas reaktor gasifikasi yang panas dan tinggi, karena tungku ini didesain dapat memasak diatas burner yang jauh dari reaktor gasifikai, kecepatan pemasakan meningkat (mendidihkan 2 lt air dengan waktu 7 menit), pencemaran menurun dan tidak terjadi bau menyengat.          Tungku gasifikasi multiburner mempunyai nilai  ekonomi tinggi karena  kinerjanya hampir sama dengan tungku minyak tanah dan biaya operasionalnya sekitar 1/3 dari tungku minyak tanah, untuk memasak 2 lt air, menggunakan minyak tanah sekitar 1/10 lt (Rp. 1300), dengan tungku single burner membutuhkan sekam 2 kg (Rp. 400) dan dengan tungku ini membutuhkan 2 kg sekam (Rp.400), dengan melihat hal tersebut, maka tungku gasifikasi multibuerner, dari segi ekonomi sangat prospek untuk dikembangkan di masyarakat. Sebagai salah satu alternative pengganti tungku gasifikasi single burner, tungku minyak tanah dan kayu bakar dan sebagai salah satu agen dari green technology guna menciptakan masyarakat mandiri energi khususnya di pulau-pulau kecil
Pengaruh Persentase Arang Tempurung Kemiri Terhadap Nilai Kalor Briket Campuran Biomassa Ampas Kelapa - Arang Tempurung Kemiri Gde Gianyar, Ida Bagus; Nurchayati, Nurchayati; Padang, Yesung Allo
Dinamika Teknik Mesin Vol 2, No 2 (2012): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
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Abstract

Indonesia has many sources of renewable energy. One of the source  renewable energy in Indonesia is biomass, because the price of biomass is relatively cheap and so far abundant numbers. Coconut dregs and hazelnut shell are biomass where these can’t be utilized optimally. Biomass can be made into briquettes which is a fuel with high calorific value.            The method used in this study is an experimental method. Begining the process with manufacture of briquettes which is the drying process of coconut dregs and hazelnut shell using the sun until dry, then the process of composing hazelnut shell. Raw materials crushed and sieved, after that the raw material made into briquettes by varying the percentage composition of coconut dregs and charcoal hazelnut shell as follows 80% : 20%, 60% : 40%, 40% : 60%, 20% : 80%. Then, the briquettes are tested their calorific value and moisture content.            The results show that higher heating value (HHV) and lower heating value (LHV) are the highest in the mix of AK 20% : ATK 80% is equal to 34,517 kJ/gr (8.242,819 cal/gr) and 34,172 kJ/gr (8.160,523 cal/gr). Meanwhile the briquettes moisture content range between 2,474% - 3,186% with average of 2,836%. In term of calorific value and moisture content, biomass briquettes from coconut dregs and charcoal hazelnut shell meets the quality standards set by the standards of Indonesia, Britain, Japan and USA. 
Pemanfaatan limbah perkebunan (kayu karet) menggunakan tungku beehives modifikasi Bahfie, F.; Nurjaman, F.; Herlina, U.; Shofi, A.; Sumardi, S.
Dinamika Teknik Mesin Vol 11, No 2 (2021): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v11i2.480

Abstract

Biomass can be used for energy production from renewable sources. Due to the social resistance to crop burning, mixtures and pellets made from or including waste materials are a good alternative. Plantation waste becomes a problem, namely reducing land which ultimately destroys the soil and the ecosystem around the land. This waste has the potential to become charcoal that supports biomass production in Indonesia with modified beehive furnaces. The carbonized rubber charcoal has a fixed carbon content of 63% with 37% of ash, volatile and water impurities. And the redemption value in this process is around 15% which has a profit margin of 200% from the purchase capital of rubber wood waste. The carbonization process with modified beehive furnaces can be a recommendation for the manufacture of charcoal from plantation waste.
PENGARUH PEMAKAIAN BAHAN BAKAR BENSIN PREMIUM DAN PERTAMAX TERHADAP TORSI, DAYA EFEKTIF DAN SFCe PADA MOTOR BENSIN EMPAT LANGKAH EMPAT SILINDER Nuarsa, I Made
Dinamika Teknik Mesin Vol 1, No 1 (2011): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v1i1.129

Abstract

Fuel quality had a major effect on improvement of the engine performance. One of the reason is the engine performance to get off is detonation occurs in the combustion chamber. To support this effort is by using high octane fuel as Pertamax. By using those fuel, it is expected to economize the fuel consumption and reduces air pollution level. There by the improvement of the engine performance is expected to be happening.  This research was done to analyse the effect of premium and pertamax consumption in terms of torque, effective power and specific fuel consumption effective (SFCe) on Daihatsu Feroza engine 1589 cc. The instrument for measuring the torque of engine were trommel and brake power system by using brake material that adopts brake prony system.  The experiment was done at wide open throttle (WOT) at fourth transmission at 1600 rpm, 2100 rpm, 2600 rpm, 3100 rpm, and 3600 rpm.  The experiment result was gained maximum of torque, effective power and specific fuel consumption effective (SFCe) to premium gasoline RON 88 at 3600 rpm severally is 12,92 Kg.m, 64,93 PS and 0,10 L/PS.jam and to pertamax gasoline RON 92 severally is 13,52 Kg.m, 67,97 PS and 0,09 L/PS.jam. Average increasing of torque and effective power equal to 6,52% and 6,79%. While the average degradation of spesific fuel consumption effective (SFCe) equal to 16,18%.

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