Ardyanto Darmanto
Jurusan Teknik Mesin Fakultas Teknik Universitas Brawijaya

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RANCANG BANGUN SISTEM HIDROLIK PADA MERIAM ARTILERI PERTAHANAN UDARA (57 MM) RETROFIT Pakki, Gunawan; Kusnadi, Kusnadi; Darmanto, Ardyanto; Gunarko, Gunarko; Aristha, Aristha
TURBO [Tulisan Riset Berbasis Online] Vol 7, No 2 (2018): Desember 2018
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v7i2.816

Abstract

Meriam 57 mm Retrofit merupakan salah satu alat utama sistem persenjataan (alutsista) yang dimiliki satuan Batalyon Arhanudse untuk menghalau serangan udara. Pada pergeseran meriam dari pangkalan menuju ke medan latihan/tempur atau sebaliknya, perlu dilakukan perubahan sikap angkut pada meriam terlebih dahulu. Perubahan sikap tempur ke sikap angkut pada meriam masih menggunakan pompa manual, yaitu mengayunkan tuas pompa manual untuk mengalirkan minyak hidrolik dari tangki ke silinder bogie. Piston di dalam silinder bogie akan naik sehingga terjadilah perubahan dari sikap tempur ke sikap angkut. Penggunaan pompa manual ini kurang efektif karena selain menguras tenaga, waktu pemompaan juga relatif lama ± 1 menit. Berdasarkan hal tersebut diatas, telah dirancang sistem hidrolik untuk perubahan sikap angkut pada meriam tersebut yang terdiri dari gear pump, hydraulic hose, katup-katup, inverter, motor listrik AC. Dengan memanfaatkan sumber listrik dari baterai meriam yang diubah dari arus DC menjadi arus AC oleh inverter sehingga menggerakkan motor listrik. Ketika motor listrik dihidupkan gear pump ikut berputar karena satu poros dengannya. Gear pump akan menghisap minyak dari tangki dan memompanya kedalam silinder bogie melalui hydraulic hose dan katup-katup yang terpasang. Sehingga terjadilah perubahaan sikap angkut yang lebih efesien tenaga dan waktu. Kata kunci : meriam, silinder bogie, gear pump, motor listrik.
Pengaruh Kondisi Temperatur Mesophilic (35ºC) Dan Thermophilic (55ºC) Anaerob Digester Kotoran Kuda Terhadap Produksi Biogas Darmanto, Ardyanto; Soeparman, Sudjito; Widhiyanuriawan, Denny
Rekayasa Mesin Vol 3, No 2 (2012)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.485 KB)

Abstract

Content energy of biogas is not less than energy derived from petroleum, horse manure can be used as a substrate for producing biogas. A substrate in horse manure bacteria containing framer metan which is in the animal body ruminants. Temperature is one of the important factors that affect on fermentation process. The aim of study was to find characterization production and composition content biogas from horse manure on condition temperature mesophilic (35ºC) and thermophilic (55ºC). Both of digester are running simultaneously by fermentation process for 15 days. The results obtained from the condition that generated the biogas production of thermophilic higher than the condition of mesophilic and conditions without heating. Biogas production optimum of each digester generated on day 8 for thermophilic conditions, day 10 for mesophilic conditions and day 11 for the conditions without heating. The highest result of biogas production was in thermophilic conditions (0.1411 kg). The highest percentage of methane gas production (CH4) that produced by the thermophilic digester conditions (59.8%).Keywords: biogas, mesophilic, thermophilic, horse manure.
RANCANG BANGUN RODA TANPA UDARA (AIRLESS TYRE) UNTUK BEBAN MAKSIMAL KENDARAAN 40.000 N Mulyono, Agus; Darmanto, Ardyanto; Gunarko, Gunarko; Harnyoto, Harnyoto; Wibowo, Farid Hendro
TURBO [Tulisan Riset Berbasis Online] Vol 7, No 2 (2018): Desember 2018
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v7i2.813

Abstract

        Tyres without air / Airless Tyre do not have Tyres like most Tyres. Airless Tyre or airless Tyre designed to have a hexagonal / beehive spoke profile where this design will receive the same style as Tyres with air. Design of this airless Tyre using polyol and isocyanate material for flexible spoke wheel material, while the tread material uses natural rubber material added additive reinforcement.Before the spoke printing process is carried out a simulation to determine the strength of the material and the design that was designed, after which a mechanical test of rubber material was carried out to determine the physical strength of the material. After that, the printing process and the overall assembly are carried out and tested on the vehicle. Keywords:  Airless Tyre, Honey comb design,  Poliol and natural rubber.