Amri, MuhammadRidlo (2016) Perhitungan Kebutuhan Bahan Baku dan Penentuan Alokasi Pesanan Kepada Multi-Supplier (Studi Kasus di PT. Mega Karya Perkasa),. Sarjana thesis, Universitas Brawijaya.
Abstract
PT. Mega Karya Perkasa merupakan perusahaan yang bergerak di bidang industri manufaktur untuk produk transformator. Perusahaan ini mengalami kendala persediaan. Kendala persediaan yang terjadi merupakan kontribusi dari kesalahan supplier, khususnya karena bahan baku yang dipesan tidak bisa diterima tepat pada waktunya. Sehingga perusahaan harus memilih untuk memesan kepada supplier lain atau hanya menunggu saja. Jika perusahaan memilih untuk memesan kepada supplier lain, maka akan beresiko pada tingkat persediaan yang tinggi. Namun, jika perusahaan hanya menunggu, akan memungkinkan terjadinya kehabisan stok bahan baku. Perusahaan sebenarnya mengandalkan beberapa supplier untuk memenuhi kebutuhan bahan baku, namun belum memiliki dasar prioritas dalam menentukan alokasi pesanan. Pada penelitian ini dilakukan penentuan alokasi pesanan bahan baku dengan menggunakan beberapa metode yang diantaranya adalah Material Requirement Planning (MRP), Analytical Hierarchy Process (AHP), dan Goal Programming. Penggunaan MRP pada penelitian ini hanya sebatas penentuan kebutuhan bahan baku, sehingga proses perhitungannya hanya dilakukan hingga proses netting. Sementara metode AHP dilakukan untuk menentukan prioritas supplier. Terdapat 4 kriteria yang digunakan untuk menentukan prioritas supplier pada penelitian ini, yaitu biaya, kualitas, pelayanan, dan pengiriman. Pada penilaian dalam metode AHP, harus dipastikan bahwa individu yang terlibat merupakan orang yang memahami berbagai hal terkait dengan supplier, seperti General Manager dan jajaran manajer yang terkait. Setelah mengetahui prioritas supplier untuk setiap bahan baku yang diteliti, kemudian dilakukan alokasi kebutuhan kepada masing-masing supplier berdasarkan prioritasnya dengan menggunakan perhitungan formulasi goal programming. Hasil pengolahan goal programming menghasilkan solusi alokasi bahan baku untuk setiap bulan. Untuk bulan Januari, kebutuhan bahan baku silicon steel sebanyak 39740 kg dialokasikan seluruhnya kepada JFE sebagai prioritas utama. Sementara pada bulan Februari dan Maret, jumlah pesanan yang dialokasikan kepada JFE dan Macglo tidak berubah, yaitu 50000 kg kepada JFE dan 40000 kepada Macglo. Kemudian sisa kebutuhan silicon steel dialokasikan kepada Sumitomo, yaitu sebanyak 17100 pada bulan Februari dan 32700 pada bulan Maret. Metode yang sama juga dilakukan untuk memperoleh alokasi pesanan dari plat hitam dan plat putih. Hasilnya, diperoleh alokasi sejumlah kebutuhan untuk setiap supplier pada setiap bulannya.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2016/829/051609643 |
| Subjects: | 600 Technology (Applied sciences) > 670 Manufacturing |
| Divisions: | Fakultas Teknik > Teknik Industri |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 31 Oct 2016 08:53 |
| Last Modified: | 22 Oct 2021 02:36 |
| URI: | http://repository.ub.ac.id/id/eprint/145097 |
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