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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 22 Documents
 1   2   3 
Search results for , issue "Vol 6, No 1 (2020): April" : 22 Documents clear
Waktu Realistis Pengerjaan Proyek Rumah Tinggal Bertingkat Type 72 Dengan Metode Program Evaluation and Review Technique (PERT) di PT. XYZ Medan Eddy Eddy; Abdul Gani Syahputra
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.1815

Abstract

The complexity of managing a project requires good and accurate planning. This is done to overcome the obstacles that arise in the implementation of project work. One of them is the obstacle of late project completion time. Program Evaluation and Review Technique (PERT) is a network model that is able to map the time of completion of activities. PERT is very useful for managing a project because it provides information relating to the completion of a project. The use of PERT method in this study provides the results of the completion time of type 72-storey residential building project based on a critical trajectory of 114 days. Through a statistical approach and assuming the completion of a normally distributed project the realistic time span of completion of the project is between 114 days to 124 days. While the probability of completion of the project during the time frame is between 50% to 99.9%.
Waktu Realistis Pengerjaan Proyek Rumah Tinggal Bertingkat Type 72 Dengan Metode Program Evaluation and Review Technique (PERT) di PT. XYZ Medan Eddy, Eddy; Syahputra, Abdul Gani
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.1815

Abstract

The complexity of managing a project requires good and accurate planning. This is done to overcome the obstacles that arise in the implementation of project work. One of them is the obstacle of late project completion time. Program Evaluation and Review Technique (PERT) is a network model that is able to map the time of completion of activities. PERT is very useful for managing a project because it provides information relating to the completion of a project. The use of PERT method in this study provides the results of the completion time of type 72-storey residential building project based on a critical trajectory of 114 days. Through a statistical approach and assuming the completion of a normally distributed project the realistic time span of completion of the project is between 114 days to 124 days. While the probability of completion of the project during the time frame is between 50% to 99.9%.
Analisis Ukuran Batubara Menggunakan Metode Statistical Quality Control di PT. Mifa Bersaudara Gaustama Putra; Rofi Rosalinda
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.1867

Abstract

PT. Mifa Brothers are located in Peunaga Cut Ujong Village, Meureubo, West Aceh, Aceh Province, which is engaged in coal mining, which has 2 types of size, namely small size (fines coal 50 mm) and large size (lumpy coal 200 mm). The problem that occurs in this company is that coal size is often not under buyer demand, 2 types of coal size are often mixed, the coal size sampling process is still done manually and takes a long time. Therefore it is necessary to do quality control to determine the coal size control limits so that the company can directly monitor from the company control chart, to facilitate the company in improving processes that go beyond the statistical control limits. Quality control can be carried out by using statistical tools to control the proportion of errors (p-chart) of daily/individual data from coal size sampling results. In January 2019, 10 ships and 70 barges totaling 550.000 mt, so the sample units produced were 6860,1 increases (20580.2 kg), coal size mismatch data were 12592 kg, from the map control calculation of the proportion of errors obtained for P 6,11853, CL 6,1185, UCL 6,440771 and LCL 5,796223. From the results of data processing, calculation of the control map from the proportion of errors turns out that the 5th and 9th observations are outside the limits of statistical control, it is necessary to revise the final results and obtained for P 4,782038, CL 4, 782024, UCL 5,041432, LCL 4,522616.
Analisis Ukuran Batubara Menggunakan Metode Statistical Quality Control di PT. Mifa Bersaudara Putra, Gaustama; Rosalinda, Rofi
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.1867

Abstract

PT. Mifa Brothers are located in Peunaga Cut Ujong Village, Meureubo, West Aceh, Aceh Province, which is engaged in coal mining, which has 2 types of size, namely small size (fines coal 50 mm) and large size (lumpy coal 200 mm). The problem that occurs in this company is that coal size is often not under buyer demand, 2 types of coal size are often mixed, the coal size sampling process is still done manually and takes a long time. Therefore it is necessary to do quality control to determine the coal size control limits so that the company can directly monitor from the company control chart, to facilitate the company in improving processes that go beyond the statistical control limits. Quality control can be carried out by using statistical tools to control the proportion of errors (p-chart) of daily/individual data from coal size sampling results. In January 2019, 10 ships and 70 barges totaling 550.000 mt, so the sample units produced were 6860,1 increases (20580.2 kg), coal size mismatch data were 12592 kg, from the map control calculation of the proportion of errors obtained for P 6,11853, CL 6,1185, UCL 6,440771 and LCL 5,796223. From the results of data processing, calculation of the control map from the proportion of errors turns out that the 5th and 9th observations are outside the limits of statistical control, it is necessary to revise the final results and obtained for P 4,782038, CL 4, 782024, UCL 5,041432, LCL 4,522616.
Strategi Pengurangan Risiko Kerusakan Pada Komponen Kritis Boiler di Industri Pembangkit Listrik Iing Pamungkas; Heri Tri Irawan
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.2197

Abstract

This paper uses the failure mode approach and effect analysis (FMEA) in formulating a risk reduction strategy for damage to critical components of the boiler section of the Nagan Raya steam power plant. Boilers are an important part of the production system of steam power plants. The problem in the boiler section is the relatively high damage frequency compared to other parts. The aim of this study is to propose a risk reduction strategy for critical boiler components using a failure mode approach and effect analysis (FMEA). The proposed damage risk reduction will prioritize important components that have the highest risk priority number (RPN). The strategy that was successfully formulated was for the cyclone separator component, to carry out periodic and scheduled preventive checks and maintenance, especially on the return leg to prevent the accumulation of solid particles in the fluid system. Primary air fans and induced draft fan components, they must perform standard operational procedures (SOP) when operating the fan so that they do not experience high vibrations, and routinely balance the rotor contained in the fan. As for the coal feeder components, monitor the coal flow in detail so that it does not accumulate at one particular point, which can cause leakage at the outlet flanges.
Strategi Pengurangan Risiko Kerusakan Pada Komponen Kritis Boiler di Industri Pembangkit Listrik Pamungkas, Iing; Irawan, Heri Tri
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.2197

Abstract

This paper uses the failure mode approach and effect analysis (FMEA) in formulating a risk reduction strategy for damage to critical components of the boiler section of the Nagan Raya steam power plant. Boilers are an important part of the production system of steam power plants. The problem in the boiler section is the relatively high damage frequency compared to other parts. The aim of this study is to propose a risk reduction strategy for critical boiler components using a failure mode approach and effect analysis (FMEA). The proposed damage risk reduction will prioritize important components that have the highest risk priority number (RPN). The strategy that was successfully formulated was for the cyclone separator component, to carry out periodic and scheduled preventive checks and maintenance, especially on the return leg to prevent the accumulation of solid particles in the fluid system. Primary air fans and induced draft fan components, they must perform standard operational procedures (SOP) when operating the fan so that they do not experience high vibrations, and routinely balance the rotor contained in the fan. As for the coal feeder components, monitor the coal flow in detail so that it does not accumulate at one particular point, which can cause leakage at the outlet flanges.
Perbandingan Teknik Klasifikasi Untuk Memprediksi Kualitas Kinerja Karyawan Hijrah Hijrah; Mukhlizar Mukhlizar; T.M. Aziz Pandria
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.1990

Abstract

This study was conducted to compare several classification techniques used to determine the quality of employee performance. the quality of employee performance is very influential on the development of a company, there are many attributes that are used as a measure of employee performance the more attributes used then the better the results of the quality of assessment performed. to get maximum result hence done by comparison of technique of classification, comparison done by seeing result of performance of method used. method used by algorithm C4.5, Naive Bayes, and k-nearest neighbors, method to be used will be tested using tool rapid miner.
Perbandingan Teknik Klasifikasi Untuk Memprediksi Kualitas Kinerja Karyawan Hijrah, Hijrah; Mukhlizar, Mukhlizar; Pandria, T.M. Aziz
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.1990

Abstract

This study was conducted to compare several classification techniques used to determine the quality of employee performance. the quality of employee performance is very influential on the development of a company, there are many attributes that are used as a measure of employee performance the more attributes used then the better the results of the quality of assessment performed. to get maximum result hence done by comparison of technique of classification, comparison done by seeing result of performance of method used. method used by algorithm C4.5, Naive Bayes, and k-nearest neighbors, method to be used will be tested using tool rapid miner.
Penjadwalan Produksi Paving Block Pada CV. Nibo Corporation Banda Aceh Heri Tri Irawan; Iing Pamungkas; Arhami Arhami
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.2063

Abstract

This paper uses the Palmer method to schedule paving block production in CV. Nibo Corporation Banda Aceh. CV. Nibo Corporation is engaged in the production of paving blocks located in the city of Banda Aceh. Problems faced by CV. Nibo Corporation often produces excess paving blocks than the number of orders that results in product accumulation in the storage area. The purpose of this study is to schedule paving block production in CV. Nibo Corporation. Paving block production scheduling in CV. Nibo Corporation will use the Palmer method. This research begins by calculating each standard time for each job. From the scheduling results, the comparison between the initial factory work schedule is nine hours of work in one day, and twenty-four working days in a month. While scheduling using the palmer method is six hours of work in one day and twenty-four working days in a month, or nine hours of work in one work day and seventeen days in a month. Using the palmer method can reduce the difference in production and orders every month from 31.000 to 5.944, or 3.000 per month, thereby reducing the accumulation of paving block products.
Penjadwalan Produksi Paving Block Pada CV. Nibo Corporation Banda Aceh Irawan, Heri Tri; Pamungkas, Iing; Arhami, Arhami
Jurnal Optimalisasi Vol 6, No 1 (2020): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v6i1.2063

Abstract

This paper uses the Palmer method to schedule paving block production in CV. Nibo Corporation Banda Aceh. CV. Nibo Corporation is engaged in the production of paving blocks located in the city of Banda Aceh. Problems faced by CV. Nibo Corporation often produces excess paving blocks than the number of orders that results in product accumulation in the storage area. The purpose of this study is to schedule paving block production in CV. Nibo Corporation. Paving block production scheduling in CV. Nibo Corporation will use the Palmer method. This research begins by calculating each standard time for each job. From the scheduling results, the comparison between the initial factory work schedule is nine hours of work in one day, and twenty-four working days in a month. While scheduling using the palmer method is six hours of work in one day and twenty-four working days in a month, or nine hours of work in one work day and seventeen days in a month. Using the palmer method can reduce the difference in production and orders every month from 31.000 to 5.944, or 3.000 per month, thereby reducing the accumulation of paving block products.

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