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A Study on Mechanical Behavior of Coconut Fiber Composite as an Alternative Material for Mobile Phone Housing Muftil Badri
Proksima Vol 1 No 2 (2023): Jurnal ProKsima
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/proksima.v1i2.10

Abstract

Mobile phone is one of the most widely used electronic products. Housing is part of a very important component of mobile phone. Mobile phone housing refers to the outer housing of the device that encompasses its internal components. Mobile phone housing materials have been widely developed, such as polyester, polyurethane, carbon fiber, wood and leather. This paper proposes to conduct tensile tests and fabrication of mobile phone housing to determine the mechanical characteristics of coconut fiber composites as an alternative material for mobile phone product. Finite element simulation of drop test is then conducted to determine the impact robustness of a product. The investigation of tensile characteristics was carried out using variations in fiber direction. Vacuum assisted resin infusion is used as a method for manufacturing mobile phone housing product. Finite element simulation of mobile phone housing with various drop test positions was also conducted and the impact behaviour of coconut fiber composite housing materials was also obtained. It was shown that coconut fiber can be used as an alternative material for mobile phone housing. The design of the mobile phone housing also needs to be considered at the corner position of the housing because this is the location where the maximum impact stress occurs.
Mesin Pencetak Pakan Ikan Alternatif Bagi Masyarakat Desa Buluhcina, Kecamatan Siak Hulu, Kabupaten Kampar Badri, Muftil; Aziz, Azridjal; Dalil, Mohammad; Kurniawan, Iwan; Abdurrahaman, Ridwan; Kusuma, Andi Arief
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.14895

Abstract

Buluhcina is one of the villages in Siak Hulu, Kampar District, Riau Province. The natural wealth potential in Buluhcina includes: (1) several villagers develop cage fish cultivation; (2) the river along the village as a natural potential has lots of fish needed by the community; and (3) lakes and swamps that have the potential to be developed for new jobs. From the community service activities in Buluhcina, it was concluded that: (1) this fish feed molding machine is capable of producing fish feed, the feeds is produced from the machine must be dried by conventional drying (the heat from the sun). (2) Running test for the production of fish feeds that have been made are used as samples of fish feed developed in Buluhcina. Operational training activities for produce the alternative fish feed have been successfully carried out in Buluhcina.
Kekuatan Tarik dan Impak Komposit Matrik Polimer Serat Kulit Durian dengan Variasi Perlakuan Alkalisasi (NaOH, NaOH+H2O2, dan KOH) Serat badri, muftil; Chaerunissa, Andini; Dalil, M.; Saputra, Sukemi Indra
Rekayasa Material, Manufaktur dan Energi Vol 8, No 1: Januari 2025
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v8i1.21237

Abstract

Durian fruit is one of the most popular fruits in Indonesia. Half of the durian fruit is the peel, which produces a lot of waste. The durian peel is not useful and also has no economic value. Durian peel contains fibers that have the potential to be utilized. The utilization of durian peel fiber as a composite natural fiber is an effort to reduce waste from the peels. Improvement of the properties of durian peel fibers can be applied by alkali treatment of the fibers. The purpose of this study is to obtain the cellulose content, tensile strength and impact toughness of durian peel fiber reinforced polymer composites by varying the alkali treatment of the fibers. The volume fraction of fiber and matrix composite was used 50:50. This study varied 0% alkali, fiber alkali as follows: 5% NaOH, 5% NaOH + 3% H2O2, 5% KOH. The results showed the highest cellulose content of 59.48% in the 5% NaOH + 3% H2O2 treatment. It was found that the optimum tensile strength was 8.58 MPa in the 5% NaOH + 3% H2O2 fiber treatment. The highest impact toughness of 2.8 kJ/m2 was obtained in 0% alkali treatment of fiber composite.
Mesin Pemipil Jagung Kapasitas 1200 Kg/Jam bagi Kelompok Usaha Tani Harapan Bersama di Desa Sei Beras Sekata Indra, Joni; Kamil, Idham; BR Ginting, Berta; Nainggolan, Rufinus
BERKAT: Jurnal Pemberdayaan Masyarakat Vol 4 No 2 (2024): DESEMBER 2024
Publisher : P3M Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Desa Beras Sekata di Kecamatan Sunggal, Kabupaten Deli Serdang, adalah daerahpenghasil jagung. Jagung merupakan tanaman yang mudah dirawat dan memiliki waktupanen cepat, sekitar 3 bulan. Namun, proses pemipilan jagung di desa ini masihdilakukan secara manual, menghabiskan waktu dan biaya, terutama karena banyakpetani yang menggunakan alat sewa. Untuk mengatasi masalah ini, tim PKM menerapkanteknologi dengan merancang dan membuat mesin pemipil jagung mekanis untukdiberikan kepada petani di desa Beras Sekata. Mesin ini dirancang dengan daya 5,5 HPdan kapasitas produksi 1200 kg/jam. Diharapkan, mesin pemipil ini dapat mengurangibiaya produksi, menggantikan biaya sewa alat, serta meningkatkan efisiensi pemipilan.Selain itu, tim PKM juga memberikan pelatihan penggunaan mesin dan manajemenusaha kepada petani, termasuk strategi pemasaran jagung untuk meningkatkan hasilpenjualan.
Modifikasi Mesin Produksi untuk Peningkatan Produktivitas dan Kualitas Produk di Umkm Bumbu Masak Buya Arief, Dodi Sofyan; Badri, Muftil; Saputra, Sukemi Indra; Susilawati, Anita; Dalil, M.
Jurnal Pengabdian UntukMu NegeRI Vol. 8 No. 3 (2024): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jpumri.v8i3.8143

Abstract

This community service aims to improve productivity, the efficiency and quality the spice production process at Bumbu Masak Buya, a small and medium-sized enterprise (SME) in Dumai, Indonesia. The primary focus is on upgrading outdated production machinery, specifically roasters, grinders, dryers, and sieves. By modifying or redesigning these machines, the study seeks to improve their performance, durability, and safety. A combined qualitative and quantitative research methodology was employed. The initial step involves a comprehensive assessment of the current production process to identify areas for improvement. Subsequently, the design and implementation of machine modifications were undertaken. It involves a detailed assessment of the current production process, followed by the design and implementation of machine modifications. The impact of these modifications was evaluated to measure their effectiveness in enhancing productivity and product quality. The findings of this study are expected to provide valuable insights for other SMEs in the spice processing industry. By adopting similar strategies of machine modification, these SMEs can improve their operational efficiency, reduce production costs, and enhance the quality of their products.
Estimation of Capacity and Center of Weight of Traditional Ship, Bagan Siapiapi Yohanes, Yohanes; Badri, Muftil; Damanik, Pindo Evans Manuel
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 24 No 1 (2015): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v24i1.435

Abstract

On traditional manufactures fishing boats in Indonesia, especially in the shipyard at Bagan Siapiapi, on Riau province usually made by rely on the ability of inherited tradition and hereditary not based on function and their designation. Example that way still used when determine capacity and center of gravity. This research aims to study capacity and center gravity of ship nets at Bagan Siapiapi using computer simulations. On this method some of data about capacity, center of gravity, drawing design and construction of ships would to be studied systematic and accurate base on practical condition. That case would be studied and validate on the one shipyard industry at Bagan Siapiapi. Some result from this study are (1) Capacity of ship nets 7093 kg and the weight is 13401.04 kg on the full condition. (2) Center weight of ship nets at X = 0.7mm; Y = 888.5mm; and Z = -162.5 mm. (3) Stability of ship nets on the without load has a smaller tilt angle compare than the full load condition.
A Measurement Method of Corrosion Rate in Condensate Pipeline Using Long Range Ultrasonic Test Badri, Muftil; Ansukarto, Iswan; Puspito, Wismo
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 28 No 1 (2016): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v28i1.420

Abstract

The pipeline is one of the important means necessary as the transport medium of oil and gas, so that when the pipeline leak would greatly disrupt the production process. Pipelines generally use carbon steel, a major problem in the use of carbon steel is corrosion. Therefore, there must be serious action to prevent and simultaneously tackling the corrosion. In this study, the method used to measure the rate of corrosion is LRUT, this method is the latest technology in Indonesia in the field of inspection of corrosion rate. By using ultrasonic waves, this method will detect a reduction in the thickness of the pipe (wall loss), which is then used as the primary data to calculate the corrosion rate. The following conclusions were obtained: (1) Measurement of corrosion rate by using LRUT method can detect corrosion of the inner and outer walls of the pipe, the testing process faster, efficient and more extensive inspection area when compared with conventional methods. (2) The rate of corrosion on the circuit pipelines are not the same, it is in line with the magnitude of wall loss that occurs in a series of pipelines that are influenced by internal and external factors such pipes. (3) In general, a series of pipelines that have been tested using the method LRUT have decreased performance with a reduction in the thickness of the pipe wall. The greatest reduction in thickness occurs in TP # 02, anomaly number 13 with the corrosion rate of 0237 so that the estimated remaining life at that point was 19.49 years.
Comparison of Commercial and Palm Slag Motorcycle Brake Pads Performance Badri, Muftil; Arief, Dodi Sofyan; Prayitno, Adhy
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 38 No 1 (2016): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v38i1.393

Abstract

This paper presents a number of experimental data and techniques used in performance of commercial and palm slag motorcycle brake pads. The experiments include wear and hardness tests. The wear behavior of motorcycle brake pad that was observed in the study on sliding contact member brake discs results in the conversion of kinetic energy into heat at the pad and disc interface leads to this investigation. The effects of speed of disc brake rotor are presented. Experimental results of the respective tests are presented on two motorcycle brake pads, namely commercial brake pad (CBP) and palm slag brake pad (PBP). It was found that the wear behavior of palm slag brake pad is influenced by design of geometry shape of motorcycle brake pad. The wear behavior of CBP and PBP composite depend on wet and dry condition. It is clearly seen that wear behavior of PBP composite increase significantly with dry condition. Wear behavior increase significantly with the increase of rotor speed. With increasing speed of rotor disc, the hardness of PBP composite changes from low hardness to a more stable hardness behavior.
Performance Analysis of Flywheel Addition on Drive System of Rotary Friction Welding Machine Yohanes, Yohanes; Siregar, Erikson; Susilawati, Anita; Badri, Muftil
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 52 No 1 (2018): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (818.654 KB) | DOI: 10.36842/jomase.v52i1.46

Abstract

Friction welding is a solid-state welding without the use of filler metal by using pressure method where by two workpieces to be connected. It is placed in contact and regulated relative motion in pressure, so that on the contact surface being heat (close to the metal liquid point), which form the metal connection. A friction welding machine in the laboratory of technology production of the University of Riau has some disadvantages, namely the electric motor as a driver head stock stems that are often damaged due to overheating such as excessive during welding. Thus was interfering with the welding process due to damage to the electric motor. Therefore, this paper purpose is carried out the development of friction welding tool by using flywheel. The Flywheel stores energy during high engine speed, and passes it during low engine speeds to produce a steady turn. In this study used three flywheels with a diameter of 250 mm, which each thick of 10 mm, 20 mm and 30 mm. From the test is obtained the value of the average tensile strength on each flywheel that is 522.736 MPa, 510.648 MPa and 531.79 Mpa.
Vibration Measurement Method using 3 Accelerometer CMCP770A on Beam Cylinder with Fix-Fix Support and Double Selenoid Badri, Muftil; Junianto, Fajar Dwi
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 56 No 1 (2018): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.085 KB) | DOI: 10.36842/jomase.v56i1.38

Abstract

Vibration occurs due to excitation both from within and from outside the system, but the effect of vibration is very dependent on the excitation frequency and the elements of the vibration system itself. The purpose of this research is to find out the natural frequency value of the test specimens using accelerometer as a result of 2 selenoids with the same frequency as the fix-fix. The natural frequency was measurement of the cylinder beam rod with fix-fix pedestal. Four points of the test were given by using a double solenoid with the same frequency given on beam rod by varying the test point, then measured using 3 accelerometers and measured data then processed using data acquisition DT8837 through Quick DAQ program. The natural frequency of the beam cylinder rod can be detected by testing by using an excitation shaker or selenoids which in the beam cylinder rod is given disturbance by giving the excitation then recorded using accelerometer then processed using the data acquisition so that the frequency value of the beam rod is obtained. It was found that the processing of vibration analysis using the FFT process is used to find the frequency components of the mixed and hidden signal by noise in the time history signal. Natural frequency value is very important to know because if not known when designing a tool if not known natural frequency will harm the tool because if the tool vibrates about the natural frequency.