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Journal : Applied Industrial Engineering Journal

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%
Pengambilan Keputusan Pengendalian Persediaan Bahan Baku Kedelai pada UKM Tempe Hartini Dengan Metode Simple Additive Weighting Maesaroh, Siti; ., Amalia; Santoso, Dewi Agustini
Applied Industrial Engineering Journal Vol. 6 No. 1 (2022): JUNI
Publisher : Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33633/aiej.v6i1.6432

Abstract

Indonesia merupakan negara penghasil tempe yakni makanan olahan kedelai ini juga banyak disukai oleh seluruh kalangan masyarakat. Kebanyakan produk ini diolah oleh industri bersakala kecil dan menengah, salah satunya yaitu UKM Tempe Hartini. UKM yang beroperasi di Gunungpati, Semarang ini memiliki hambatan atau permasalahan dalam pengendalian persediaan bahan baku kedelai yang kurang optimal antara lain terkait penentuan banyaknya bahan baku dan frekuensi pemesanan bahan baku, agar dapat meminimalkan total biaya persediaan bahan baku kedelai. Maka dari itu, penelitian ini bertujuan untuk rekomendasi pengambilan keputusan terkait metode yang paling optimal dalam menentukan jumlah bahan baku, frekuensi pemesanan bahan baku, serta total biaya persediaan. Metode untuk pengendalian perhitungan persediaan menggunakan metode Economic Order Quantity (EOQ), Period Order Quantity (POQ) dan metode Just-in-Time (JIT). Selanjutnya, dalam penentuan metode yang paling optimal menggunakan metode Simple Additive Weighting (SAW). Total biaya persediaan dari perhitungan metode EOQ sebesar Rp 1.229.379 dan dapat menghemat biaya sebesar 34%. Sedangkan total biaya persediaan metode POQ sebesar Rp 640.693 dan dapat menghemat biaya sebesar 66%. Untuk total biaya dengan metode JIT sebesar Rp 784.927 dan dapat melakukan penghematan biaya sebesar 58%. Berdasarkan hasil perhitungan dengan menggunakan metode SAW, metode yang terpilih dari total biaya yang paling optimal yaitu dengan metode POQ.