Perancangan Ulang Tata Letak Fasilitas Produksi Kereta Api Dengan Model QAP, ABSMODEL 3, Dan LMIP 4 (Studi Kasus: PT X)

Yusriah, Naura Nuha (2023) Perancangan Ulang Tata Letak Fasilitas Produksi Kereta Api Dengan Model QAP, ABSMODEL 3, Dan LMIP 4 (Studi Kasus: PT X). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Selama tahun 2016-2019 PT X selalu mengalami keterlambatan pengiriman produk sehingga harus membayar denda hingga 5%. Berdasarkan penelitian sebelumnya, jenis pemborosan pada proses produksi di PT X yaitu waiting, overprocessing, motion, dan transportation. Tata letak yang efektif dapat mengurangi waste ‘transportation’ dan biaya pemindahan material sehingga dapat meningkatkan profitabilitas. Permasalahan tata letak fasilitas di PT X sering terjadi pada proses finishing yang terdiri dari painting dan component fitting, di mana rute dan volume produk pada setiap tahun berbeda. Permasalahan ini tergolong sebagai dynamic facility layout planning (DFLP). Tujuan penelitian ini untuk menghasilkan rancangan tata letak fasilitas dinamis yang robust (robust dynamic layout) pada fasilitas proses finishing serta mengetahui total biaya yang dibutuhkan untuk pemindahan material dan perubahan tata letak fasilitas. Penelitian ini menggunakan pendekatan dua tahap yaitu sebagai permasalahan optimasi dan permasalahan desain. Tahap pertama menggunakan model Quadratic Assignment Problem (QAP), ABSMODEL 3, dan Linear Mixed Integer Programming (LMIP) 4 untuk menghasilkan beberapa alternatif tata letak dasar/awal yang optimal. Tahap kedua melakukan penyesuaian terhadap tata letak awal berdasarkan ketersediaan gedung dan pembatas yang tidak dapat diakomodasi dalam model yang digunakan. Selanjutnya alternatif rancangan tata letak fasilitas dipilih menggunakan metode Analytical Hierarchy Process (AHP) dengan kriteria biaya, fleksibilitas, dan kapasitas. Urutan solusi model dengan menggunakan software Lingo berdasarkan total biaya minimum berturut-turut yaitu LMIP 4, ABSMODEL 3, dan QAP. Penyesuaian tata letak pada tahap desain menghasilkan solusi yang sama antara ABSMODEL 3 dan LMIP 4. Alternatif terpilih dengan menggunakan AHP yaitu tata letak fasilitas yang dihasilkan oleh model ABSMODEL3/LMIP4 dengan kapasitas area terpakai sebesar 95,9% dan memiliki fleksibilitas yang tinggi. Alternatif tata letak fasilitas yang terpilih dapat diimplementasikan jika permintaan kereta berpenggerak lebih tinggi dibanding kereta penumpang dan biaya tambangan lebih besar dari biaya forklift.
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During 2016-2019 PT X always experienced delays in product delivery so they had to pay fines of up to 5%. Based on previous research, four types of waste in the production process at PT X are waiting, overprocessing, motion, and transportation. An effective layout can reduce transportation waste and material handling costs, thereby increasing profitability. The facility layout problem at PT X frequently occurs in the finishing process, which consists of painting and component fitting, where the routes and product volumes vary each year, thus presenting dynamic facility layout planning (DFLP) problems. The objective of this research is to develop a robust dynamic facility layout design for the finishing process facility and assess the total cost associated with material handling and facility layout modifications. To achieve this, a two-stage approach is adopted, comprising an optimization problem and a design problem. In the first stage, models such as Quadratic Assignment Problem (QAP), ABSMODEL 3, and Linear Mixed Integer Programming (LMIP) 4 are utilized to generate multiple optimal basic/initial layout alternatives. The second stage involves adjusting the initial layout based on the availability of the building and constraints that cannot be accommodated in the model. The sequence of model solutions using Lingo software based on minimum total cost, respectively, is LMIP 4, ABSMODEL 3, and QAP. The layout adjustments during the design stage resulted in the same solution between ABSMODEL 3 and LMIP 4. The selected alternative using AHP is the facility layout generated by the ABSMODEL3/LMIP4 model, with an occupied area capacity of 95.9% and high flexibility. The chosen facility layout alternative can be implemented if the demand for freight trains is higher than passenger trains and the traverser cost is higher than the forklift cost.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Perancangan Tata Letak Fasilitas, QAP, ABSMODEL 3, LMIP 4, AHP, Facility Layout Design
Subjects:	T Technology > TF Railroad engineering and operation
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26201-(S1) Undergraduate Thesis
Depositing User:	Naura Nuha Yusriah
Date Deposited:	21 Sep 2023 02:13
Last Modified:	21 Sep 2023 02:13
URI:	http://repository.its.ac.id/id/eprint/103041

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