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Forecasting Car Demand in Indonesia with Moving Average Method Fuad Dwi Hanggara
Journal of Engineering Science and Technology Management (JES-TM) Vol. 1 No. 1 (2021): April 2021
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v1i1.5

The automotive industry is an industry that requires a long process and high manufacturing costs. improper can have fatal consequences if not planned properly will cause financial losses. Production planning using statistical tools such as statistical process control can control the right amount of production according to customer demand. Part of the statistics that makes planning for future production planned is forecasting. Precise production quantities require the specialized abilities of technicians experienced in forecasting. The approach used in forecasting uses a quantitative approach using production data, and sales data of the Gabungan Industri Kendaraan Bermotor Indonesia 2020. The use of the Moving Average method in forecasting will determine the number of production limits so that excess production can be avoided, and the automotive industry in Indonesian has many opportunities to develop its production.

Implementasi Linier Programming Modelling untuk Maksimasi Profit Penjualan Produk Seblak pada UD. XYZ di Aceh Barat Arrazy Elba Ridha; Ulfa Syahputri; Habib Satria; Adib Adib; Fuad Dwi Hanggara; Rizki Agam Syahputra; Abdiel Khaleil Akmal
Jurnal Optimalisasi Vol 9, No 2 (2023): Oktober
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v9i2.8491

Seblak is a food that has seen an increase in demand in recent years, and is a promising culinary business that can be run with a small capital. UD. XYZ is a seblak business that started selling seblak in early 2022 in West Aceh and wants to maximize the profits from its seblak sales. One method that can do this is Linear Programming, which can determine decision-making that can group limited materials or resources to achieve an optimal or best solution. From UD. XYZ's weekly sales data, it can be transformed into a mathematical model that helps to find the maximum function of the profit from seblak sales. The linear programming calculation process in this study uses the Lingo 18.0 software to solve linear programming problems, which will be continued with the linear graph visualization of the objective function with the MATLAB software. The results of the study show that the maximum profit that will be obtained by UD. XYZ in one week is Rp. 420,000/week, this profit is already categorized as net profit that can be used for the development of UD. XYZ's seblak business. Of the three variables X1 (seblak noodles and crackers), X2 (seblak eggs), and X3 (seblak chicken/feet), variables X1 and X2 have the potential to increase maximum profit if increased. In this study, the objective point is also on the point axis (X1=0, X2=0, and X3 = 175).

Desain Perancangan Troli Ergonomi Bagi Pekerja Material Handling UMKM Sigma Motor. Kevin Ferdinand Andersona; Fuad Dwi Hanggara; Adi Nugroho
Journal of Green Engineering for Sustainability Vol 1 No 01 (2023): September 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

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

The development of the industrial sector requires researchers to continue in innovate, from anindustrial management system, workflow design, to product innovation. There are so manyinnovations from products that are created to make it easier for users to do their work. But still,there are many MSMEs that still use human energy to do certain jobs, one of which is liftingand carrying loads manually or commonly referred to as Manual Materials. Handling (MMH).In one case of the MSMEs spare part distributor "Sigma Motor", it was found that the workersstill use Manual Material Handling, and this material handling is done repeatedly with thedistance that they must travel in 8 meters. With this distance each worker per minute can manageto transport 3 boxes at a time. This has an impact on reduced work productivity, the emergenceof pain in workers both temporary and permanent, increasing the possibility of accidents. Thisstudy uses the Nordic Body Map (NDM) method to analyze the most common complaints andthe Rapid Entire Body Assessment (REBA) method to analyze worker posture. As well asanthropometric measurements to determine the dimensions of the trolley design for proposal toMSMEs. This study aims to determine complaints of pain, worker posture when handlingmaterials, and existing risks. Also, to design a trolley for proposal to MSMEs with ergonomicsstudies. With the proposal design trolley, hope that can help workers in transporting boxes ofgoods from the loading area to container trucks and in other way. So, the result of this researchis to change a work process on MSMEs in material handling by using tools from the trolleydesign as a suggestion to MSMEs to help workers in material handling.

Korelasi Jumlah Kendaraan Terhadap Kualitas Udara, Suhu, Dan Kebisingan Di Kota Malang Dengan Pendekatan Berbasis Internet Of Things Hanggara, Fuad Dwi; Aulia Fikriarini M.; Allin Junikhah; Yasmin Zafirah; Fariz Rifqi Zul Fahmi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 13, No 3: November 2024
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v13n3.1259.2024

In response to the issues of air pollution, temperature, and noise, this project attempts to create an air quality, temperature, and noise monitoring system using Internet of Things (IoT) technology. This system will comprise physical components and a web platform that delivers real-time environmental reports. Users can readily obtain information regarding air quality, temperature, and noise levels via this platform, which takes advantage of the internet's accessibility. This Internet of Things-based device monitors environmental quality in six high-traffic areas in Malang, Indonesia. The system uses various sensors to monitor air quality, temperature, humidity, dust levels, carbon monoxide (CO), carbon dioxide (CO2), and noise pollution in real-time. Data was collected during peak traffic hours, demonstrating the direct influence of car emissions on air quality. The findings show that some regions' CO and particulate matter levels surpass safe criteria, notably during peak traffic periods, but CO2, humidity, and noise levels are below acceptable norms. These findings highlight the necessity for urban air pollution reduction initiatives. Additional sensor calibration and communication modifications are recommended to increase system accuracy and dependability. This study gives significant insights for local authorities to manage urban environmental quality and safeguard human health.

Desain Perancangan Troli Ergonomi Bagi Pekerja Material Handling UMKM Sigma Motor. Andersona , Kevin Ferdinand; Hanggara, Fuad Dwi; Adi Nugroho
Greeners: Journal of Green Engineering for Sustainability Vol 1 No 1 (2023): Journal of Green Engineering for Sustainability
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Universal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63643/jges.v1i1.170

The development of the industrial sector requires researchers to continue in innovate, from anindustrial management system, workflow design, to product innovation. There are so manyinnovations from products that are created to make it easier for users to do their work. But still,there are many MSMEs that still use human energy to do certain jobs, one of which is liftingand carrying loads manually or commonly referred to as Manual Materials. Handling (MMH).In one case of the MSMEs spare part distributor "Sigma Motor", it was found that the workersstill use Manual Material Handling, and this material handling is done repeatedly with thedistance that they must travel in 8 meters. With this distance each worker per minute can manageto transport 3 boxes at a time. This has an impact on reduced work productivity, the emergenceof pain in workers both temporary and permanent, increasing the possibility of accidents. Thisstudy uses the Nordic Body Map (NDM) method to analyze the most common complaints andthe Rapid Entire Body Assessment (REBA) method to analyze worker posture. As well asanthropometric measurements to determine the dimensions of the trolley design for proposal toMSMEs. This study aims to determine complaints of pain, worker posture when handlingmaterials, and existing risks. Also, to design a trolley for proposal to MSMEs with ergonomicsstudies. With the proposal design trolley, hope that can help workers in transporting boxes ofgoods from the loading area to container trucks and in other way. So, the result of this researchis to change a work process on MSMEs in material handling by using tools from the trolleydesign as a suggestion to MSMEs to help workers in material handling.

WAREHOUSE ANALYSIS USING 5S AND ABC CLASSIFICATION METHOD ON CV. KARYA JAYA Hanggara, Fuad Dwi
SITEKIN: Jurnal Sains, Teknologi dan Industri Vol 21, No 2 (2024): June 2024
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/sitekin.v21i2.28982

Storage room or warehouse is one of the facilities available in every company to facilitate its operations. The warehouse which is a place to store inventory of goods before the goods are issued has several activities. Due to the space that is too wide and the workers' lack of attention to the arrangement of goods on the storage rack, CV. Karya Jaya were disorganized or untidy. The arrangement of items that are still untidy makes the warehouse look ineffective and inefficient. The method used is 5S (Seiri,Seiton, Seiso, Seiketsu,Shitsuke) and ABC classification. The purpose of conducting research is to determine the arrangement of the warehouse area so that the goods look neat and effective, then ABC classification is carried out so that the categorization of goods becomes neater and in accordance with the classification so that it can make it easier for workers to search for goods in the warehouse. After doing the research, the results were Seiri 75% (quite effective), Seiton 50% (less effective), Seiso 25% (ineffective), Seiketsu 0% (very ineffective), and Shitsuke 100% (effective). There are 3 class categories, namely class A (11 items), class B (16 items), class C (27 items), proposed improvements by providing 3 shelves with the code for each product class A yellow with a high frequency of demand, class B green with medium request frequency, class C is blue with low request frequency.

Modeling the effect of bullet velocity and composite fiber orientation on the ballistic impact strength of Eglass/isophthalic polyester composites Fahmi, Fariz Rifqi Zul; Hermawan, Harry; Hanggara, Fuad Dwi
Jurnal Polimesin Vol 22, No 6 (2024): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i6.5861

Numerical simulation has been widely used as a cost-effective and practical solution to understand phenomena previously determined only through experiment. One example is ballistic impact simulation using the finite element method. The simulation of ballistic impact was used to determine the effect of fiber orientation and bullet velocity on the ballistic impact strength of E-glass/isophthalic polyester. The analysis and simulation process were conducted using ANSYS Workbench v19.2 software. The simulation involved firing a 9 mm FMJ Parabellum bullet with a mass of 6.98 grams at a composite panel measuring 100×100×0.57 mm with 12 layers at specified velocities. This study varied fiber orientation ([±45°] and [0°, 90°]) and bullet velocities (300, 500, and 800 m/s), using symmetrical laminate arrangements. The simulation results showed that the E-glass/isophthalic polyester composite with a fiber orientation of [±45°] has 16.51% higher ballistic strength compared to the [0°, 90°] fiber orientation. The highest ballistic impact strength for the [±45°] fiber orientation occured at 500 m/s, surpassing the 300 m/s and 800 m/s velocities by 12.92% and 43.81%, respectively. The Wen model was used for the validation process, and the error values between the computed and modeling results for the E-glass/isophthalic polyester composite ranged between 1.62% and 20.64%.Isophthalic polyester, E-glass, composite laminate, explicit dynamic, ballistic impact.

The effect of the number of syn-gas purification nozzles of the water scrubber method on the characteristics of gasification combustion results Hanggara, Fuad Dwi; Yuliansyah, Fisal; Irawan, Dwi
Jurnal Polimesin Vol 22, No 5 (2024): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i5.5298

The product of the gasification process contains several impurities, including tar, ash, CO2, and other contaminants. To achieve efficient syngas results, the syngas must undergo a filtration or purification process, which can increase its energy density. The purpose of this study was to determine the effect of the number of purification nozzles on the characteristics of the resulting flame, the duration of the flame produced during the gasification process, and the rate of heat absorption in the water generated from the syngas purification process. The water scrubber method employed in the syngas purification process utilizes an updraft gasification reactor. The biomass used in this study is rubber wood, with a venturi nozzle size of 0.15 mm and a pressure of 0.12 Pa. The tests varied the number of purification nozzles to 2, 3, and 4. The use of 4 nozzles had a significant effect on the combustion characteristics, resulting in a blue flame with a duration of 33 minutes. The configuration with 3 nozzles produced a flame that exhibited a mixture of blue and orange colors, with the blue flame being more dominant, lasting 38.2 minutes. In contrast, the configuration with 2 nozzles resulted in a bluish-red flame, predominantly red in color, with a duration of 45 minutes. The heat absorption rates in the water produced for the configurations with 2, 3, and 4 nozzles were measured at 539 J/s, 449.1 J/s, and 414.62 J/s, respectively.

Effect of nitrogen gas-assisted cooling on TIG weld distortion and mechanical properties of AA5083 aluminum alloy Hanggara, Fuad Dwi; Putra, Rama Dani Eka; Fitri, Tessa Zulenia; Nugroho, Handi Wilujeng; Prayogo, Dhanang Suryo
Jurnal Polimesin Vol 23, No 6 (2025): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i6.7910

This study investigates the effect of nitrogen gas-assisted static cooling on weld distortion and mechanical properties of AA5083 aluminum alloy joined by Tungsten Inert Gas (TIG) welding. Although various cooling techniques have been reported to control heat input and distortion in aluminum welding, the combined influence of static nitrogen cooling and welding current on both distortion behavior and local mechanical properties of AA5083 remains insufficiently understood. Three welding current levels (100 A, 110 A, and 120 A) were applied while maintaining constant welding speed, arc voltage, and shielding gas flow. Mechanical properties, including tensile strength and Vickers hardness, were evaluated across the weld metal, Heat-Affected Zone (HAZ), and base metal. Thermal-induced distortion was analyzed using 3D profiling and validated through Analysis of Variance (ANOVA) statistical tests. The results indicate that a welding current of 100 A with static nitrogen cooling minimizes distortion and achieves the highest tensile strength (197.41 MPa). The highest yield strength was recorded at 120 A (160.31 MPa), while the maximum hardness values were observed in the weld metal at 110 A (135.83 VHN), HAZ at 120 A (117.63 VHN), and base metal at 100 A (124.1 VHN). Statistical analysis confirms that welding current significantly influences both distortion and mechanical outcomes (p 0.05), while the cooling method shows a moderate effect. These findings demonstrate that nitrogen-assisted static cooling offers a practical approach to improving weld quality by balancing dimensional stability and mechanical performance in precision aluminum welding applications.

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