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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 249 Documents
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Peningkatan Kinerja Jasa Ekspedisi dengan Meninjau Faktor Performansi Heribertus Budi Santoso; Lolyka Dewi Indrasari; Ana Komari; Afiff Yudha Tripariyanto
Jurnal Optimalisasi Vol 9, No 1 (2023): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v9i1.4603

Abstract

Tingkat kepentingan kinerja bagi jasa ekspedisi sangat penting. Oleh sebab itu, kinerja yang sudah dilakukan memerlukan pengukuran lebih lanjut. Penelitian bertujuan untuk menilai model kinerja jasa ekspedisi mengguankan perspektif faktor performa. Metode penelitian desain kuantitatif. Indikator yang digunakan sejumlah 12 item. Teknik analisis menggunakan uji regresi logistik biner. Temuan yang dapatkan bahwa performansi dalam meningkatkan kinerja jasa ekspedisi yaitu cukup setuju. Model terpilih (a) < 0,05 adalah . Hasil uji Wald menunjukkan Training (X11) , Informasi Data Penerimaan Barang (X23)  dan Ketepatan Jadwal Pengiriman (X32) . Dinyatakan bahwa indikator yang digunakan dalam penelitian sudah baik dan memerlukan langkah mempertahakan kinerja atau meningkatkan kinerja yang lebih baik lagi.
Pengendalian Kualitas Produk Batu Nisan di Kota Gresik dengan Pendekatan Seven Tools Moh. Ririn Rosyidi; Narto Narto
Jurnal Optimalisasi Vol 9, No 1 (2023): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v9i1.6766

Abstract

In the Industrial Age 4.0, when business competition is increasing and growing, business people are also required to be able to maintain and increase their existence in products, This tombstone is one of the product needs when approaching the Idhul Fitri holiday because many people will replace the tombstones that have died or if a relative has passed away. Sadar Gresik UMKM produces tombstones and there is a defect problem that occurs, namely experiencing thin cracks and chipped corners of tombstones in April 2022 Sadar UMKM can produce an average of 41 gravestones in one day and for an average defect in 1 month 11 tombstones. In this study, aims to find out the quality control needed so that the tombstone products can control defects, by using the seven tools to find out the factors that cause defects and can control the defects by knowing the NP line on the control chart. Seven tools can also identify the causes and effects of defects and with the addition of 5W+1H recommendations will be made regarding the problems encountered. factors from the results of fishbone Diagrams that require evaluation which include human factors, materials, methods, environment where these factors cause the number of tombstone defects to be 174 thin cracks and tombstone corners to chip 121. To control defects in tombstone products so that at the midpoint of NP 11.8 is right at the midpoint of the control chart. From several factors that are already known in thin cracked tombstones, namely carrying out quality control of 5W + 1H tombstones, so that they can control these defects in accordance with predetermined product specifications/standards, the process of making tombstone products, employees who work on these have responsibilities, the need for training/skill training for the process of making the tombstones and monitoring the evaluation of the workers, the angle of the tombstones, namely carrying out quality control so as to minimize product defects, so that the quality produced is maintained according to the specified standards, the process of making tombstone products, employees those who do it have the responsibility, make repairs on a regular basis.
Analisis Kelayakan Finansial pada Industri Baglog Jamur untuk Peningkatan Produksi 30.000 Unit per Bulan pada Agroindustri Imam Agus Prabowo; Mathilda Sri Lestari; Rian Prasetyo
Jurnal Optimalisasi Vol 9, No 1 (2023): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v9i1.5772

Abstract

The agricultural sector is the main structure of national economic development. One of the sub-sectors in agriculture that has an important role for the welfare of farmers and the regional economy as well as the national economy is the Horticulture sub-sector. This sub-sector has been supported by the agro-industry. One of the products from this agro-industry is baglog of mushrooms. This study aims to analyze the financial feasibility of increasing production capacity from 20,000 to 30,000 baglogs of mushrooms per month. It caused the average demand is 29,070 baglogs of mushrooms per month. The research object is the manufacture of mushroom baglog. Descriptive quantitative with financial feasibility analysis techniques and sensitivity analysis is used as a method in this research. The results found that the investment period of 5 years required an investment cost of IDR 244,342,677. Financial feasibility analysis with a discount rate of 9% produces an NPV value of IDR 257,886,281, an IRR of 44.594%, a Profitability index of 2.06 and a Payback Period of 1.88 years. The results of the sensitivity analysis of an increase in the cost of raw materials by 17% and a decrease in production of 9% obtained the results of NPV > 0, IRR > 9%, Profitability index > 1 and Payback period < business life. Based on these results, the investment is financially feasible because IRR > MARR.
Tinjauan Pustaka Sistematis Penerapan Quality Function Deployment di Industri Manufaktur Ing Brian Rapelo; Krisna Ananda Priyatama; M. Bari Baihaqi; M. Rizki Darmawan; Rohmat Setiawan; Indra Setiawan
Jurnal Optimalisasi Vol 9, No 1 (2023): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v9i1.6687

Abstract

Quality Function Deployment (QFD) is a tool or planning instrument that is used to provide an overview of customer desires which are then translated into strategic stages to produce products or services whose characteristics are in accordance with customer wishes. The advantage of this method approach is that the level of customer satisfaction can be explained through data, so that improving the quality of services or products and periodic evaluations to correct deficiencies can be carried out in accordance with the customer's assessment. Many studies using the QFD method are carried out by the industry. This literature review aims to analyze the advantages of the QFD method for increasing customer satisfaction in the manufacturing industry. The method used is the Systematic Literature Review. This article involves a study review of 24 articles related to the application of QFD in the manufacturing industry. The study was conducted using the Google Schoolar database. The articles obtained were then summarized, classified, and comprehensively reviewed. This article expands the knowledge and study of the application of QFD in the manufacturing industry. The development of QFD in future research can be carried out in cross-fields that still have links. QFD results can be a tool for making improvements based on the needs or voice of the customer. Improvements made using the QFD method can increase customer satisfaction, increase profits and marketing, improve service quality, and improve product quality.
Optimalisasi Penjernihan Air PDAM Tirta Meulaboh Menggunakan Aluminium Sulfat (Tawas) dan Poly Aluminium Chloride (PAC) Marlinda Marlinda; Rita Hartati; Yusi Hidjrawan; Kasmawati Kasmawati
Jurnal Optimalisasi Vol 9, No 1 (2023): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v9i1.6386

Abstract

This research aimed to determine the optimum coagulant that can be used to purify PDAM Tirta Meulaboh water which often has a cloudy color during the rainy season. The coagulants used are PAC and Tawas with the chemical formula Al2(SO4)3 and Poly Aluminum Chloride is known as PAC with the chemical formula Aln(OH)mCl(3n-m). The test was carried out by mixing 10 grams of alum and PAC which were dissolved in 1000 mL of water/aquades each. The treatment was carried out by dissolving each 1 mL in 1000 mL of PDAM water sample equal to 10 ppm. Variations in the addition of PAC/alum to each container were 10, 20, 30, 40, 50 and 60 ppm. Furthermore, rapid mixing was carried out at a speed of 100-150 rpm and slow at 20 rpm. The results showed that 10 ppm of PAC added to the sample produced turbidity of 5.2 NTU and pH 7.8, 20 ppm: 4.1 NTU and pH 7.5, 30 ppm: 3.8 NTU pH 7.3, 40 ppm : 2.3 NTU pH 7.2, 50 ppm: 1.5 NTU pH 7.1, 60 ppm: 0.8 NTU and pH 7.0. Samples added with 10 ppm of alum produced turbidity of 5.5 and pH 6.8, 20 ppm: 5.1 pH 6.7, 30 ppm: 4.5 pH 6.6, 40 ppm: 3.2 pH 6.6 , 50 ppm: 4.3 pH 6.4 and 60 ppm: 5.0 pH 6.3. The conclusions from this study indicate that PAC and alum coagulants can affect turbidity and pH levels of water, the optimal addition of PAC coagulant to purify water is 20 ppm, while the optimal addition of alum coagulant to purify water is 30 ppm.
Analisis Kualitas Pelayanan Perpustakaan Menggunakan Metode Kano Kasmawati Kasmawati; Sofiyanurriyanti Sofiyanurriyanti
Jurnal Optimalisasi Vol 9, No 1 (2023): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v9i1.7404

Abstract

The West Aceh Regency Library and Archives Service is an agency engaged in carrying out general government tasks, building libraries, and providing services openly to its users regardless of age, education, and social status factors in society. However, there are still some problems that make visitors unsatisfied, including incomplete and non-specific book collection facilities, lack of the latest published books, placement of books on shelves that do not match the location, and inadequate facilities in the reading room. This study aims to determine and categorize the attributes that are considered important from the desire of visitors to know the quality of services provided by the West Aceh District Library and Archives Service using the canoe method. The Kano method is one of the simple methods that can improve products and services to customers. This method is a model that classifies attributes and is analyzed based on customer perceptions, and the effect on customer satisfaction. The results of calculating the average value of service quality in all dimensions of the canoe method show that visitors are not satisfied enough and there are still deficiencies in service quality at the West Aceh Regency Library and Archives Service. Of the 22 attributes, some attributes need to be improved, namely one-dimensional category attributes 5,8,9,11,14,16, and 19, indifferent category attributes 10,13,15,17,18,20,21 and 22, attributes The ones that are maintained are the attractive 12 categories and the attributes that need to be improved are the must-be categories 1,2,3,4,6, and 7 which illustrate that the more an attribute does not function properly, the visitor satisfaction will decrease.
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&#039;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.

Page 17 of 25 | Total Record : 249

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