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Jurnal Optimalisasi
Published by Universitas Teuku Umar
ISSN : 24775479     EISSN : 25020501     DOI : https://doi.org/10.35308/jopt
Core Subject : Engineering,
Control & Systems Engineering Industrial & Manufacturing Engineering
JURNAL OPTIMALISASI (JOPT) merupakan jurnal elektronik online yang diterbitkan oleh Program studi Teknik Industri, Fakultas Teknik, Universitas Teuku Umar. JOPT memuat kajian dibidang Manufaktur, Ergonomi dan Manajemen Rantai Pasok. Tujuan penerbitan jurnal optimalisasi adalah sebagai wadah publikasi yang mewadahi kebutuhan peningkatan kualitas karya ilmiah dalam rangka pengembangan keilmuan dan menyebarluaskan kajian bidang ilmu Teknik Industri, sekaligus sebagai wahana komunikasi diantara cendekiawan, praktisi, mahasiswa dan pemerhati masalah Industri. JOPT terbit dua kali dalam setahun, tepatnya pada bulan April dan Oktober. Bagi pembaca, penulis, dan yang melakukan akses situs jurnal yang ingin submit naskah ke jurnal ini, silakan mendaftar sebagai author kemudian login untuk submit naskah. Informasi penulisan dan submit naskah dapat diakses di author guidelines dengan mengikuti pentunjuk di situs jurnal.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 15 Documents
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Search results for , issue "Vol 9, No 2 (2023): Oktober" : 15 Documents clear
Analisis Kelelahan Pekerja Over Time dan Shift pada Produksi Kerupuk Tahu dengan Metode Bourdone Wiersma Fazrur Suman Prambahan; Boy Isma Putra
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.v9i2.8324

Abstract

UD Company. Dua Putra has a total of 5 employees and applies a working time system of 2 shifts per day. In the production process, the target that must be met within 1 month is 2000 packing crackers. From April 2022 to September 2022, the production output of tofu crackers experienced an average decrease of 17% or 350 packs of crackers. This is caused by changes in working hours and operator fatigue during production activities. In overcoming this problem, overtime is an option to complete the predetermined targets. The aim of this research is to measure the level of work fatigue and determine the factors causing fatigue among workers in tofu cracker production operators and provide suggestions for improvements to reduce the level of worker fatigue. The method used in this problem is the Bourdone Wirsma method, which is a simple measurement method that can determine mental work load and measure speed, accuracy and concentration as well as monotonous work in employees. From the analysis of the Bourdone Wirsma test method for speed levels, the results obtained were 80% of the weighted score results of "8.5", "8", "13", "12" in the quite good category. Accuracy calculations for tofu cracker production employees obtained results of 100% from the weighted score results of "5", "5.5" in the doubtful category. Concentration calculations get results of 100% from the weighted score results of "5.5", "5" and "4.5" in the doubtful category.
Analisis Risiko dan Pengendalian K3 di Area Workshop pada Garasi Angkutan Luar PT. XYZ Menggunakan Metode Job Safety Analysis (JSA) Inas Putri Salsabillah; Hidayat Hidayat; Akhmad Wasiur Rizqi
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.v9i2.8364

Abstract

PT. XYZ is a company engaged in logistics facilities for industry which provides services for commodity management, commodity transportation, commodity distribution, industrial land preparation, workshops and various other service needs. Organizational structure at PT head office. XYZ is divided into 16 fields starting from K3, HR, internal transportation, external transportation and so on. The external transportation sector is a field that is tasked with regulating transportation operations such as dump trucks to transport fertilizers outside the PT area. XYZ and outside the city, and in the external transport garage there are two activities, namely office activities and dump truck repair activities such as welding work and other repair activities which have a risk of work accidents due to this work, as well as potential dangers, for example exposure to dust and smoke, exposure to welding rays, and the risk of fire is also prone to occur. JSA (Job Safety Analysis) is a method used as a consideration in identifying hazards in the work environment and determining controls that are deemed appropriate in an effort to control the occurrence of work accidents. The aim of this research is to find out how to analyze potential hazards that arise and efforts to control them. This research is devoted to analyzing risks in the welding section in the workshop area of PT's external transportation garage of XYZ. From the results of the risk assessment in the dump truck welding section, it can be seen that the types of hazards have a high classification level, namely: Exposure to welding light 15, exposure to dust, smoke and gas 15, electric shock 15, noise 15, and those with a medium classification level. /Medium, namely: Fire 10, exposure to sparks 12, and those with a low/Low classification level, namely: exposure to a hot plate 4.
Analisis Kualitas Produk Songkok Menggunakan Pendekatan Ishikawa Diagram dan Failure Mode and Effect Analysis Suparno Suparno; Faziyatun Ni'mah
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.v9i2.8177

Abstract

UD. Arief Bersaudara merupakan home industry yang memproduksi berbagai jenis songkok di Kota Gresik. Agar dapat bersaing dengan usaha sejenis, Perusahaan perlu menjaga dan meningkatkan kualitas produknya. Dalam menjalankan aktivitas produksi, Perusahaan menemukan bahwa produk yang dibuat selama produksi mengalami cacat. Cacat tersebut disebabkan oleh beberapa faktor, baik dari faktor manusia, faktor mesin yang digunakan, faktor bahan baku yang digunakan berkualitas kurang baik, faktor lingkungan yang berpengaruh terhadap pencahayaan, dan juga karena faktor metode yang digunakan. Cacat produk yang terjadi berupa pengesuman kurang bagus, penjahitan kurang rapi, dan pemotongan kurang presisi. Tujuan dari penelitian ini adalah mengidentifikasi penyebab cacat defect serta dengan menghitung nomor prioritas risiko. Metode yang digunakan untuk menemukan dan melakukan identifikasi faktor penyebab cacat pada produksi songkok adalah mengguankan metode Ishikawa Diagram. Sedangkan usulan perbaikan yang menjadi acuan dalam penelitian ini dilakukan dengan cara melakukan perhitungan Risk Priority Number (RPN) dengan menghitung setiap nilai yang ada pada indicator yang diukur untuk mendapatkan nilai RPN tertinggi yang berarti memberikan dampak risiko paling besar. Metode yang digunakan adalah Failure Mode Effect Analysis (FMEA).  Berdasarkan hasil penelitian menunjukkan tiga defect yang teridentifikasi dengan nilai Risk Priority Number tertinggi 245 pada pemotongan kurang presisi, dengan nilai RPN 175 pada Penjahitan tidak rapi, dan nilai RPN 150 Pengesuman Kurang Bagus. Rekomendasi perbaikan berdasarkan hasil analisis adalah owner harus melakukan pengawasan yang baik kepada pekerja bagian, selain itu peningkatan keahlian pekerja mutlak dilakukan untuk menjamin kualitas yang baik.
Pengendalian Kualitas Cake dengan Seven Tools di Usaha Ladior, Payakumbuh Winny Alna Marlina; Habibullah Habibullah; Armijal Armijal
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.v9i2.8367

Abstract

Established in 2002, the Ladior Cake and Cookies MSME operates in the culinary industry, specializing in the production of different kinds of moist cakes and pastries. The company places a strong emphasis on quality control. The company suffered from defective products resulting from quality issues in the production of both wet and dry cakes. Cake flaws include burned cakes, uneven cake sizes, unsightly cakes, easily brittle cakes, and moldy cakes. The purpose of this research is to control cake quality utilizing seven tools. This study is using a quantitative methodology. The research findings indicate that five different types of cake defects were obtained using the check sheet; the highest defects were caused by burnt cake when stratification was applied; the data were obtained using a histogram; the scatter diagram displayed the relationship between the factors causing defects; the Control Chart diagram displayed controlled cake production data; the Pareto diagram identified the defects that required attention, the most critical of which was an empty cake; and the Fish Bone Diagram identified the factors that cause burnt cake defects because the oven needed to be replaced. Factors including Man, Machine, Method, and Material are responsible for the highest number of cake defects out of all product. The Ladior Cake & Cookies owners have to improve maintenance, honing worker professionalism, and stepping up production process oversight to cut down on the amount of faulty goods. Seven tools will be added to the TQM technique by future researchers and used with other MSMEs.
Menurunkan Waktu Penggantian Tabung Gas Welding (GMAW) Menggunakan Metode Single Minute Exchange Die (SMED) di Politeknik Astra Neilinda Novita Aisa; Rahayu Budi Prahara; Eduardus Dimas Arya Sadewa; Wahyudi Wahyudi; Andreadie Wicaksono
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.v9i2.7475

Abstract

Politeknik Astra is a high vocational education institution that have several laboratories. Welding laboratoy has longest preparation time compare to another laboratories. Gas cylinder changes process in Gas Metal Arc Welding (GMAW) takes 29.2 minutes, which is the longest preparation time so the welding training is hinder by it. Previous condition of  gas instalation is, every GMAW machine equiped with one  gas cylinder,  so if the cylinder is run out of  gas, it have to changes and potentially it could be done more than one machine. The aim of this research is to reduce gas cylinder changes time in welding laboratory using single minute exchange of dies methode (SMED). SMED is one of lean manufacturing metodes that able to identified and reduce or eliminate time waste by separated internal setup and external setup. Using SMED metods, gas cylinder changes activities are identified then divided by internal and external setup. The activities that have no effect to gas flow from cylinder to machine are convert from internal to external setup. For the final, external setup are simplified using 5W2H tools. The solution that reserearcher found using SMED method is to built a centralized gas system with one cylinder as an active gas supply for whole GMAW machine and the other one as  a backup cylinder, in stead of install  gas cylinder on every GMAW machine. The result of this research is setup time for gas cylinder changing process is reduce from 1752 seconds or 29.2 minutes to 877 seconds or 14.6 minute or reduce 50%, furthermore man power alaso reduce from 3 person to 1 person.
Sistem Monitoring SPM Berbasis IoT untuk Meningkatkan Produktivitas & Kualitas pada Perusahaan Manufaktur Adi Rusdi Widya; Fibi Eko Putra; Andri Firmansyah; Muhammad Fatchan
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.v9i2.7914

Abstract

Perancangan sistem monitoring stroke per minute (SPMMS) mesin pada sebuah organisasi perusahaan dibutuhkan untuk meningkatkan kemampuan perusahaan dalam persaingan bisnis di era Revolusi Industri 4.0, penggunaan IoT (Internet of thing), Human Machine Interface (HMI) memudahkan dalam pengembangan sistem monitoring machine salah satunya adalah untuk melakukan sistem monitoring kerja mesin saat proses produksi. Monitoring SPM dilakukan untuk meningkatkan produktivitas dan kualitas suatu mesin dalam memenuhi jadwal produksi suatu organisasi manufaktur. Perancangan pembuatan sistem monitoring (SPMMS) adalah sistem monitoring mesin secara terprogram dengan menggunakan sistem monitoring SPM secara digital pada mesin proses produksi. SPM monitoring system dilakukan untuk memberikan informasi secara real time dan online status mesin saat mesin beroperasi dan memberikan informasi produk secara kuantitas dan kualitas secara tepat dan akurat sehingga target produksi terjaga dengan baik memenuhi target yang sudah ditetapkan oleh perusahaan.
Penerapan Metode Overall Equipment Effectiveness (OEE) dan Six Big Losses untuk Mengukur Efektivitas Mesin Packing pada PT. Surya Tsabat Mandiri Rizqi Wahyudi; Rafi Gredita Ferdana; Andhyka Tyaz Nugraha
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.v9i2.8352

Abstract

This research aims to investigate the risk of six big losses and the effectiveness of packing machines at PT Surya Tsabat Mandiri in South Lampung using monthly data on production of bread products from March 2021 to February 2022 used in the research. Research was carried out on packing machine objects using quantitative data or data that can be measured systematically. The Overall Equipment Effectiveness (OEE) method is applied to measure the total performance of equipment as a whole according to what must be done and to assess the dominant factors of the Six Big Losses which are dominantly used by the fishbone diagram approach. The research results show that the average OEE value of packing machines is 78.17% and is still below world standards (≥85%). Apart from that, evidence was found that the most dominant six big losses factors were idling and minor stoppage losses with a value of 16.85% and reduced speed losses with a value of 7.85%. Based on the fishbone diagram, the aspects that cause speed losses on packing machines are humans (lack of operator knowledge, lack of workers guarding bread baskets), machines (repair of damaged machines, unstable center and end seal temperatures), environment (unstable production room temperature) and method (non-periodic machine maintenance). The recommendation given to reduce these two losses is to use the TPM pillars, namely education and training, autonomous maintenance and planned maintenance.
Analisis Perencanaan Strategi Pemasaran Klinik Utama Perisai Husada Menggunakan Metode SWOT dan Quantitative Strategic Planning Matrix Vivi Lusia; Wahyu Inggar Fipiana; Tika Rohmatika; Djauhar Arifin
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.v9i2.8026

Abstract

Klinik Utama Perisai Husada adalah suatu klinik dengan konsep dimana pelayanan kesehatan penyakit dalam, saraf dan penunjang lainnya diberikan kepada pasien secara terpadu dalam satu atap. Tujuan penelitian ini adalah untuk mengetahui alternatif strategi pemasaran yang dapat dipakai oleh perusahaan. Pengumpulan data dilakukan melalui tahapan IFAS dan EFAS, analisa data menggunakan IE Matrix dan Matriks SWOT, dan pengambilan keputusan dengan pendekatan QSPM.  Hasil penelitian yang ditujukan oleh IE (Internal-External) Matrix menunjukan bahwa Klinik Utama Perisai Husada berasa pada sel V yaitu pertumbuhan dan stabilitas. Berdasarkan hasil tersebut dibuatlah alternatif-alternatif (SO, ST, WO, dan WT) pada matriks SWOT. Keempat strategi tersebut dihitung skor daya tarik melalui metode QSPM yang mana strategi SO (Strength-Opportunity): intensifikasi pemasaran hubungan dengan pelanggan, diferensiasi produk, dan memanfaatkan lokasi yang strategis untuk menarik pangsa pasar potensial, mendapatkan total skor daya tarik terbesar dan dipilih sebagai alternatif strategi pemasaran Klinik Utama Perisai Husada
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

Abstract

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).
Penentuan Kluster UMKM Sektor Perdagangan dan Perikanan Melalui Pendekatan Metode Clustering Data Mining di Kabupaten Aceh Barat Arie Saputra; Riski Asnif Sahputra
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.v9i2.8463

Abstract

So far, small and medium enterprises (MSMEs) have shown a contribution of 61.7% to GDP, or IDR 8,573.89 trillion. Apart from that, MSMEs can absorb around 97% of the national workforce. However, in reality, MSMEs face many problems, one of the most common being a lack of business capital. One of the factors causing the slow growth of MSMEs in Indonesia is development policies that are not on target. This is especially true for this research in West Aceh District. Each MSME is unique, making it difficult for banking institutions to establish consistent financing policies. This research aims to map the characteristics of MSMEs in the form of groups to make it easier to determine policy-making patterns. The Hierarchical Data Mining Clustering Method is considered appropriate because it has a much lower bias than K-means. Apart from that, this method can reduce data complexity. According to the results of data distribution for MSMEs in the fisheries sector using Matlab 2016b software, there are 6 clusters, and the results of data distribution for MSMEs in the trade sector using Matlab 2016b software show 7 clusters. Each cluster has main parameters that make MSMEs superior, such as length of business, capital ownership, sales projections, and average sales. For the last parameter.

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