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Pradigdo, Dedy
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Pengaruh Dimensi terhadap Volume Gas HHO dan Daya Listrik pada Proses Elektrolisis Pradigdo, Dedy; Soeparman, Sudjito; Widodo, Agung Sugeng
Rekayasa Mesin Vol 9, No 2 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.362 KB) | DOI: 10.21776/ub.jrm.2018.009.02.4

Abstract

The electrode area have an effect on HHO gas production volume, this phenomena influenced by electric power absorbed from the energy source to the electrode. It is necessary to examine how much the influences on process of the water electrolysis. In this research the effect of the electrode total area on the electrolysis process analyzed to determine the volume of HHO gas and electric power absorbed. The experimental method by testing the extent of several electrodes without the connection and calculating the entire surface on the electrode. The electric power is absorbed among other L1 =  6.413 mm2 : 5,2 ml : 0,774 watt, L2 = 10.028 : 28 mm2 : 7 ml : 0,9030 watt,  L3 = 14.328 mm2 : 15 ml : 2,451 watt and L4 = 14.3608 mm2 : 20 ml : 6,192 watt. In this research, the highest result on the electrode having L4: 14.360,8 mm2 = 6,192-watt area. This result influenced by the surface area reacting with water at the anode and cathode of the 12 Volt 70 AH battery and the capacity of the electrolysis generator.
MODIFIKASI SISTEM PEMOTONG PADA AUTOMATICAL AMMUNITION CLADDING DESTROYER TENAGA MOTOR LISTRIK GUNA MENDUKUNG SATUAN PERALATAN Hasep, Srs.; Pradigdo, Dedy; Imron, Ali
Jurnal Otoranpur Vol. 2 No. Mei (2021): Jurnal Otoranpur
Publisher : Pustaka Poltekad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54317/oto.v2iMei.161

Abstract

Perkembangan teknologi didunia sudah mulai berkembang termasuk perkembangan teknologi di Indonesia, salah satunya adalah perkembangan teknologi alutsista militer dibagian persenjataan. Indonesia setiap tahun selalu membuat inovasi-inovasi terbarukan tentang persenjataan seperti yang di lakukan pada senjata laras pendek maupun laras panjang. Saat ini senjata tersebut digunakan untuk latihan menembak di satuan-satuan tempur. Sehingga dengan adanya latihan tersebut akan menghasilkan limbah kelongsong. Banyaknya limbah kelongsong yang dihasilkan dari latihan menembak tersebut akan menimbulkan penumpukan kelongsong disatuan pemakai, hal ini bisa memicu penyalah gunaan limbah kelongsong. Ketika limbah kelongsong disalah gunakan oleh oknum yang tidak bertanggung jawab akan menimbulkan dampak yang sangat besar sehingga membahayakan keselamatan masayarakat dan prajurit TNI AD yang sedang bertugas menjaga kedaulatan NKRI. Fungsi dikembalikannya limbah kelongsong bekas pada satuan peralatan adalah sebagai bahan bukti bahwa satuan pemakai sudah melaksanakan latihan menembak setiap triwulan, selain itu limbah kelongsong akan dihancurkan atau dileburkan supaya tidak bisa didaur ulang untuk bahan souvenir maupun digunakan sebagai munisi aktif kembali
The PICOHIDRO POWER ELECTRIC PLANT DESIGN IS EQUIPPED BY ELECTRONIC CONTROL SYSTEM (ECU) Prasetyo, Budi; Pradigdo, Dedy; Diantoro, Indra
Jurnal Otoranpur Vol. 2 No. Oktober (2021): Jurnal Otoranpur
Publisher : Pustaka Poltekad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54317/oto.v2iOktober.197

Abstract

Abstrak: There are many streams of water or rivers around us which are felt to be underutilized effectively. Therefore, it is necessary to develop Pico hydro technology as an alternative to power generation. Pico hydro usually produces low wattage so that it is not optimal for people to use in their daily lives. Therefore, the design of a power plant is designed that is equipped with an ECU control system as a water source control system that can produce greater electrical energy. The research method used is a pure experimental method to find out the results obtained are 300 watts by calculating the pressure sent to the ECU system. Technically, Pico hydro has several components in it, such as waterwheel water as a turbine, steering blade and generator. Pico hydro can be used as an alternative energy that utilizes the flow of water which can be used as an energy source. The Pico hydro generator used in this study is the Brantas River in Pendem Village, Karangploso District, Batu Malang City. With adequate water flow, using a Francis type water turbine, and using a 200Watt generator and controlled by the ECU system. From the test results obtained potential energy of 5880 (Nm), compressive energy of 2.107 (N/m2) pipe flow velocity (v) 7.668 (m/s) energy contained in water 45.67 (watts) Francis turbine efficiency 31.97% generator efficiency is 28.77% and the maximum power produced by a 200 watt generator is 29Volt
Analisis Karakteristik Bahan Lengan RCWS (Remote Control Weapon System) pada Robot Tempur Kota Terhadap Sudut Penembakan Latif Nur Khasan; Mardjuki Mardjuki; Dedy Pradigdo
TRANSMISI Vol 16, No 1 (2020): March 2020
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v16i1.4497

Abstract

Robot tempur kota merupakan alat yang digunakan untuk pertempuran kota, senjata utama yang digunakan ialah senapan SS2 V1, senapan itu sendiri ditopang dan digerakan oleh lengan yang terbagi 2 yaitu lengan 1 dan lengan 2 mampu bergerak secara elevasi.Bahan lengan yang digunakan ialah alumunium paduan, bahan tersebut diharapkan mampu menahan beban dari gaya yang terjadi terutama ketika terjadi penembakan, untuk itu diperlukan suatu pengujian agar mengetahui karakteristik dari bahan lengan Rcws. Setelah dilaksnakan pengambilan data gaya terberat yang terjadi pada lengan 1 ialah  66,725 N pada sudut 600 dan pada lengan 2 ialah 169,602 N pada sudut 200, bahan lengan yang digunakan ialah  alumunium alloy seri 5083 mempunyai kandungan alumunium(Al) 94,978% dan unsur utama paduan magnesium sebesar 4,297% mempunyai sifat keuletan yang baik serta nilai kekerasan sebesar 23 HRB, harga impak sebesar 1,396 joule/mm2, kemudian untuk tegangan maksimal dari alumunium 5083 ialah 13,815 kgf/mm2 dengan tegangan titik putus 11,41 kgf/mm2 dan tegangan luluh sebesar 11,712 kgf/mm2. Pada saat uji penembakan, lengan dapat menerima beban terberat dari sudut yang ditentukan yaitu sudut 60° dan sudut 20°, dan kekuatan baut dengan tegangan yang diijinkan 10 N/mm2 masih mampu menerimategangan yang terjadi yaitu 0,587 N/mm2, sehingga alumunium alloy seri 5083 cocok digunakan  untuk bahan pembuatan lengan RCWS robot tempur kota.
The DESIGN AND CONSTRUCTION OF ROBOTIC ARM ON AUTOMATIC MIG WELDING ROBOT Ilham Rizqianto; Dedy Pradigdo; Ismanto Setyabudi
Jurnal Otoranpur Vol. 2 No. Oktober (2021): Jurnal Otoranpur
Publisher : Pustaka Poltekad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54317/oto.v2iOktober.186

Abstract

Abstract: Tehnlogical advances to date have grown increasingly sophisticated technolgy, especially in robotic technogy which is currently developed to achieve work result that are make human work easier welding process with manual systems need to be switched to automatic systems. The mechanical concept of the arm that will be applied to Automatic Welding Carrier Machine by applying the mechanical concept of a 3D machine which is expected to increase mobility, working range of the tool as well as increasing the quality of automatic welding results. In this research, the method used is experimental research methods and simulations that aim to know the results of the analysis on the mechanics of the robot arm. The data generated after performing calculations with provide a load on the leadscrew of the compressive stress that occurs i the leadscrew is , the voltage bending is and the shear stress that occurs is , so that the lead crew is said to be able to encourge maximum allowable amount of . The torque required by the motor drive to push the received load on the Z ( ) axis is equal to , then the selection of the nema23 stepper motor is stated very capable as a robotic arm mover because have torque . With the loading of the 2020 profile arm rod at using ansys simulation, the maximum total deformation that may occur is , so that the 2020 profile rod can be said to be safe for use on Automatic Welding Carrier Machine.
The GRINDER CONSTRUCTION DESIGN OF A BALL MILL MACHINE FOR THE PROCESS OF HOMOGENIZING BLACK POWDER USING AN AUTOMATIC SYSTEM Arif Setiawan; Dedy Pradigdo; Farid Hendro Wibowo
Jurnal Otoranpur Vol. 2 No. Oktober (2021): Jurnal Otoranpur
Publisher : Pustaka Poltekad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54317/oto.v2iOktober.187

Abstract

Combat technology in the military world has undergone a very rapid development in both close combat and long-range combat. Long-range combat is identical to a rocket weapon where the rocket works because of the presence of an igniter that serves to burn the propellant so that when the propellant burns it will produce pressure that will push the rocket hurtling towards a predetermined target. Igniter is very important in the launch of rockets where the filling of the igniter is black powder that has been difficult to obtain because of the difficult manufacturing process and risk of explosion. This research aims to design a tool that can produce black powder with a large enough capacity and good quality and reduce the risk of explosions to support the manufacture of igniters for rocket launches, especially those owned by Indonesian Army. This research used pure experimental quantitative method with empirical calculations to obtain tools with the desired specifications. The results obtained after the calculation are the volume of octagonal prism tubes 2942.5 cm3, the total volume of steel balls with two size variations is 979.5 cm3, the maximum lendutan that occurs on the shaft of the player is 0.108 mm, so it is said to be safe.
The RAMPDOOR HYDRAULIC SYSTEM MODIFICATION OF ANOA PANZER COMBAT VEHICLE Muhammad Soleh; Dedy Pradigdo; Budi Harijanto
Jurnal Otoranpur Vol. 2 No. Oktober (2021): Jurnal Otoranpur
Publisher : Pustaka Poltekad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54317/oto.v2iOktober.188

Abstract

Panzer Anoa 6x6 is a combat vehicle on tires where the first generation of it is made by PT Pindad (Persero). It can mobility, protection and carrying capacity. The ramp door on the Anoa 6x6 APC armored vehicle is driven by a hydraulic system to support the mobility of personnel when exiting or entering the vehicle. The components of the hydraulic system driving the Panzer Anoa 6x6 APC ram door include batteries, power packs, solenoid valves, hydraulic hoses, and hydraulic cylinders. These problems include the ramp door often not functioning, the ramp door moving too slowly and often experiencing congestion when the ramp door is working. These constraints often occur because the pump in the hydraulic system is driven by an electric motor that gets its power source from the battery. The fluid is pressed and flowed through a hydraulic pipe, then the flow of the pressurized fluid is regulated by a solenoid valve to the hydraulic cylinder to move the ramp door. This study uses a pure experimental quantitative method with empirical calculations to obtain a tool with the desired specifications. To move the ramp door weighing 200 kg with a maximum opening angle of 100 degrees in 8 seconds, the heaviest load received by the cylinder is 23557.44 N, the working pressure that occurs in the cylinder is 87.49 bar, where the fluid discharge will flow to the pump. of 2164.77 liters/minute, with a pump power of 394570 Watt and to continue the rotation of the engine with a rotation of 2814.13 rpm (idle) to the hydraulic pump using a pulley mechanism with a ratio of 1: 0.15.
Otomotif Kendaraan Tempur ANALISA PENGEMBANGAN CNC MILLING 5 AXIS BERBASIS MICROCONTROLLER DENGAN MOTOR DRIVER TB 6600: Teknologi Fredy Setiawan; Dedy Pradigdo; Marga Firnanda Sriminangga
Jurnal Otoranpur Vol. 3 No. Mei (2022): Jurnal Otoranpur
Publisher : Pustaka Poltekad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54317/oto.v3iMei.219

Abstract

Mesin CNC adalah mesin yang di kendalikan oleh komputer yang diprogram inputan data dengan kode angka, huruf maupun simbol. Dimana mesin CNC 5 axis merupakan gabungan antara 3 Axis dan 2 Axis yang berkaitan menjadi satu dalam kinerja mesin. Mesin CNC 5 Axis mempunyai 5 sumbu yaitu X, Y, Z dan A, B yang proses kerjanya milling benda kerja yang terbentuk 3D. Dalam penelitian ini, ada permasalahan pada mesin CNC 5 Axis dalam kekuatan batang ulir yang menompang beban disaat proses kerja milling dimana batang ulir akan mengalami gaya geser yang cukup berat. Oleh karena itu, pengembangan analisa mesin CNC akan dilakukan pemilihan batang ulir sebagai penggerak sumbu yang digerakkan oleh motor stepper serta motor driver sebagai sistem penggerak. Hasil dari penelitian ini dapat merancang momen bending maksimum batang ulir sebesar dan torsi motor penggerak spindle sebesar 2 Nm serta kecepatan motor spindle 1500 rpm, dengan daya motor stepper 21,6 W. Mesin CNC ini mampu mengerjakan material alumunium dan acrylic. Kedepannya dapat dikembangkan penelitian dengan menggunakan material yang lain agar dapat mengukur kemampuan maksimal pada mesin CNC. Alat ini banyak digunakan oleh perusahaan manufaktur dalam pengembangan dunia otomotif berbagai macam pengerjaan dan dalam bentuk yang di inginkan.
The development of household-scale biogas technology from organic waste in Lasah Village, Karangploso District Lalu Saefullah; Ardiyanto Darmanto; Dedy Pradigdo; Farit Hendro Wibowo; Akhmad Ali Imron
Khidmatuna (Jurnal Pengabdian Kepada Masyarakat) Vol 2 No 2 (2023): June-November
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58330/khidmatuna.v2i2.379

Abstract

Climate change and limited conventional energy resources have pushed to utilize renewable energy. One of them is the development of household-scale biogas technology from organic waste. This Community Service Study (PKM) aims to document and analyze the socialization process of household-scale biogas applications in Lasah Village, Karangploso District, Kab. Poor. The activities carried out are, socialization about the benefits of biogas, the production process, and the operation of the system. Community involvement from the planning stage to implementation. The impact of socialization is assessed through surveys, interviews and observations of community participation and understanding. The study results show an increase in public understanding of the benefits of using biogas and a positive response to socialization and public interest in adopting this technology. It can be concluded that the socialization of the use of biogas technology on a household scale has been well received. Collaboration between researchers and the community can overcome communication barriers and provide practical guidance on the implementation of biogas technology. Although there is still a way forward in terms of system maintenance and management, this initial step provides a strong foundation for further development. It is hoped that this study will provide valuable insights for similar efforts in other areas, as well as encourage the implementation of sustainable technology for a brighter future.
PkM Dalam Upaya Meningkatkan Kesadaran dan Keterampilan Perawatan Sepeda Motor Untuk Masyarakat Desa Sekarputih Kota Batu Melalui Sosialisasi Perbengkelan Lalu Saefullah; Anggoro Nur Setiawan; Dedy Pradigdo; Farit Hendro Wibowo; Andi Dwi Setiawan; Chandra Surya Dikara
Jurnal Pengabdian Ahmad Yani Vol. 3 No. 1 (2023): June
Publisher : Sekolah Tinggi Teknologi Industri (STTI) Bontang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53620/pay.v3i1.106

Abstract

Pengabdian Kepada Masyarakat (PKM) ini bertujuan untuk menyadarkan dan meningkatkan keterampilan tentang perawatan sepeda motor di desa Sekarputih, Kec. Junrejo, Kota Batu Tahun 2021 dengan adanya kegiatan sosialisasi perbengkelan sepeda motor. Perawatan pada sepeda motor yang baik akan memastikan keamanan dan kenyamanan saat berkendara di jalan sehingga akan berkurangnya resiko insiden yang tidak diinginkan. Namun, di banyak daerah pedesaan, pemahaman tentang perawatan sepeda motor masih rendah, dan akses ke bengkel yang berkualitas terbatas. Penelitian ini dilaksanakan melalui serangkaian kegiatan sosialisasi yang melibatkan masyarakat Desa Sekarputih. Kegiatan ini mencakup penyuluhan tentang pentingnya perawatan sepeda motor, teknik-teknik dasar perawatan, dan cara mengidentifikasi masalah umum yang sering muncul pada sepeda motor. Selain itu, warga desa Sekarputih ini disosialisasikan pelatihan praktis di bengkel, warga sangat antusias untuk belajar perawatan sepeda motor. Hasil dari PKM ini membuktikkan warga sekarputih setelah kegiatan sosialisasi yang diberikan meningkatkan kesadaran warga tentang bergunanya perawatan sepeda motor. Selain itu, kegiatan ini juga memberikan manfaat ekonomi bagi bengkel lokal karena meningkatnya permintaan perawatan sepeda motor. Penelitian ini memberikan kontribusi positif terhadap meningkatkan kesadaran dan keterampilan perawatan sepeda motor di Desa Sekarputih pada tahun 2021. Dengan peningkatan ini, diharapkan dapat mengurangi kecelakaan sepeda motor dan meningkatkan keselamatan berkendara di daerah tersebut. Selain itu, kegiatan sosialisasi perbengkelan ini dapat menjadi model bagi daerah-daerah pedesaan lainnya yang menghadapi masalah serupa dalam hal perawatan sepeda motor. Kata kunci: Pelatihan, Bengkel, Sepeda Motor
Co-Authors Agung Sugeng Widodo Akhmad Ali Imron Ali Imron Andi Dwi Setiawan Anggoro Nur Setiawan Ardiyanto Darmanto Arif Setiawan Budi Harijanto, Budi Budi Prasetyo Chandra Surya Dikara Diantoro, Indra Farid Hendro Wibowo Farit Hendro Wibowo Fredy Setiawan Hasep, Srs. Ilham Rizqianto Ismanto Setyabudi Latif Nur Khasan Mardjuki Mardjuki Marga Firnanda Sriminangga Muhammad Soleh Saefullah, Lalu Sudjito Soeparman