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Journal : Applied Industrial Engineering Journal

Perencanaan dan Pengendalian Bahan Baku Sarung Batik (Studi Kasus CV. Mitra Setia Usaha) Malinda, Debby; Talitha, Tita; Jazuli, Jazuli
Applied Industrial Engineering Journal Vol. 1 No. 1 (2017)
Publisher : Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (111.771 KB) | DOI: 10.33633/aiej.v1i1.1722

Abstract

Planning and controlling the needs of both raw materials and finished products is a significant thing for companies to optimize their production. This also applies to CV. Mitra Setia Usaha that  engaged in the textile industry with raw materials batik cloth. During this time, CV. Mitra Setia Usaha has not applied standard methods in the planning and control of raw material needs. Determination of the amount of raw materials so far only based on the number of consumer orders. In the last 2 (two years) (October 2014 to September 2016), the company received a request of 5.050,000 meters, but the existing supply of cotton fabric was only 4,920,500 meters. One of the methods that can be applied in the CV. Loyal Business Partners is the Material Requirement Planning (MRP). By applying this MRP-Lot for for lot (LFL) method, CV. Mitra Setia Usaha able to reduce the cost incurred in the procurement of raw materials for one year which initially amounted to 104.328.000 rupiah to 93.817.673 rupiah and can even be reduced again to 83.306.995 rupiah using the method of Order Quantity Period (POQ)
Minimasi Jarak Perpindahan Material Menggunaan Algoritma Blocplan dalam Perancangan Tata Letak Proses Produksi Produk Vulkanisir Ban Richardo, Victor; Santoso, Dewi Agustini; Talitha, Tita
Applied Industrial Engineering Journal Vol. 1 No. 1 (2017)
Publisher : Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.17 KB) | DOI: 10.33633/aiej.v1i1.1724

Abstract

The design of the layout aims to optimize aspects of productivity, processing time, worker fatigue, cost & distance of movement of material on the production floor. Optimizations regarding material displacement distance typically focus on minimizing the distance between the production units within the manufacturing company. This study conducted a case study on UD Utama Tires which is one of the companies manufacturing retread tire trucks located in Semarang. The company has crossmovement related problems between production units and departmental layout that is not in line with the production process flow, while the availability of production space is only 30x15 meters and there are 12 departments. The observation result shows the distance of material transfer in the heat-processing unit is 111.96 m and the cold-processing unit is 100.63. Optimization needs to be done to minimize the material distance between the units of the process. Blocplan algorithm was chosen as the method of arranging the company layout and obtained the result of 20 alternative proposed new layout to then selected one of the proposals with the highest layout score. The result of this research is the 15th proposed alternative with the highest layout-score value is 0.82, so it can be concluded that the optimum model can minimize the distance of the material production movement by 63.8m in the heat-processing unit with the effectiveness rate 43.02% and 69.1m in the process unit cold with effectiveness rate 31,33%
Penggunaan Metode Goal Programming Untuk Optimasi Perancangan Proses Produksi Produk Wingko Babat Novitasari, Novitasari; Talitha, Tita; Susanto, Dewi Agustini
Applied Industrial Engineering Journal Vol. 1 No. 1 (2017)
Publisher : Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.07 KB) | DOI: 10.33633/aiej.v1i1.1725

Abstract

One form of actual problems in the manufacturing industry is how to maximize the value of profit with various constraints or constraints. The problem is not only experienced by big industry but also small industry like in UD. Wingko trip Mr. Moel who is trying to maximize the value of profit by estimating the amount of wingko trips that must be produced because there is a problem of the difference in the amount of production with one of the limits associated with the production capacity. The resulting production difference causes the amount of wingko trip or excess production in certain month. The method of Goal Programming is the one method of optimization with more than one objective that are interconnected with each other or conflicting to solve the problem. This research uses the Goal Programming method to optimize the production amount and maximize the profit of the product, and to forecast the number of forward demand by using the number of the past request to know how many products must be produced. Goal Programming Formulations use forecasting as decision variables for optimization of results in compliance with criteria and constraints. The results show the optimal amount of production in January - December 2017 are 29860 bag wingko original, 24000 bag wingko chocolate chocolate, 26004 bag wingko tripe jackfruit and 18084 bag wingko tripe durian with total profit in 2017 is Rp. 429.736.600. 
Pemodelan Diskrit dan Analisis Sistem Antrian Pelayanan Tiket Kereta Api Stasiun Poncol Kota Semarang Talitha, Tita; Sanjaya, Coki
Applied Industrial Engineering Journal Vol. 8 No. 1 (2024): JUNI
Publisher : Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33633/aiej.v8i1.12637

Abstract

Antrian merupakan salah satu permasalahan yang kerap ditemui dalam kehidupan sehari-hari dan menjadi contoh nyata dari ketidakseimbangan antara permintaan dan kapasitas pelayanan. Antrian terjadi ketika jumlah permintaan layanan melebihi kemampuan sistem dalam memberikan layanan secara langsung. Dalam upaya mempertahankan kepuasan pelanggan, pelaku usaha maupun tim pemasaran senantiasa berupaya meningkatkan kualitas layanan yang diberikan. Pelayanan tiket di Stasiun Poncol Semarang sering mengalami antrean panjang akibat penutupan jumlah pelanggan dan waktu layanan yang bervariasi. Hal ini dapat menghambat efektivitas pelayanan di berbagai loket, seperti Customer Service, Pemesanan, Pembatalan, Ubah Jadwal/Refund, dan Cetak Tiket Mandiri (CTM). Untuk mengatasi permasalahan ini, penelitian ini menerapkan teori antrian dan menggunakan software Arena untuk menganalisis serta meningkatkan efisiensi sistem antrian. Hasil penelitian diharapkan dapat memberikan model antrian yang lebih optimal untuk meningkatkan kualitas layanan dan kepuasan pelanggan.