Perancangan Strategi Pengelolaan Persediaan Material Cadang Transmisi Berbasis Risk Pooling Dan Koordinasi Antar-Gudang

Utomo, Bima Dwi (2026) Perancangan Strategi Pengelolaan Persediaan Material Cadang Transmisi Berbasis Risk Pooling Dan Koordinasi Antar-Gudang. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Ketersediaan material cadang transmisi slow-moving penting bagi keandalan sistem, namun sifat pemakaiannya yang jarang dapat menimbulkan trade-off antara kebutuhan operasional dan efisiensi biaya persediaan. Perusahaan harus menjaga stok material cadang tetap tersedia agar downtime peralatan dapat dicegah. Kebutuhan akan penggunaan material cadang tergolong tidak pasti. Hal ini menjadikan kecenderungan unit operasional membeli material cadang untuk pengamanan stok pada masing – masing gudang. Berdasarkan kondisi tersebut, dalam kurun waktu yang lama akan menyebabkan tingginya nilai persediaan material cadang. Beberapa dampak dari kondisi ini akan meningkatkan modal kerja yang tidak termanfaatkan, mempercepat keusangan, dan biaya penanganan gudang meningkat. Kondisi tersebut menunjukkan perlunya strategi pengelolaan persediaan yang mampu menyeimbangkan keandalan operasional dengan risiko pasokan dan efisiensi finansial. Penelitian ini menggunakan perhitungan Poisson sebagai perhitungan proyeksi kebutuhan berbasis tingkat kegagalan peralatan. Dari hasil perhitungan diketahui mampu menurunkan biaya 34% dan penurunan saldo akhir 61% lebih rendah dibandingkan kebijakan eksisting pada proyeksi 7 tahun. Hal ini dapat membantu Perusahaan untuk menghemat pembelian dan mengurangi risiko penumpukan. Untuk mengektifkan persediaan material dilakukan simulasi dengan mtode tanpa risk pooling, dengan risk pooling penuh, risk pooling parsial. Tanpa risk pooling memiliki keuntungan fill rate tinggi dan respon terhadap gangguan tinggi. Sedangkan dengan risk pooling penuh memiliki keuntungan holding cost rendah dan penyerapan material tinggi. Yang terakhir dengan risk pooling parsial memiliki keuntungan moderat dimana respon terhadap gangguan dan fill rate lebih baik dibanding risk pooling penuh dan holding cost lebih baik dibandingkan tanpa risk pooling.
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The availability of slow-moving transmission spare parts is crucial for system reliability, but their infrequent usage can create a trade-off between operational needs and inventory cost efficiency. The company must keep spare parts in stock to prevent equipment downtime. The need for spare parts usage is classified as uncertain. This leads to the tendency of operational units to purchase spare parts to secure stock in each warehouse. Based on these conditions, over a long period, it will lead to a high value of spare parts inventory. Some of the impacts of this condition will increase unused working capital, accelerate obsolescence, and raise warehouse handling costs. These conditions highlight the need for inventory management strategies that can balance operational reliability with supply risk and financial efficiency. This study uses Poisson calculations as a projection of needs based on equipment failure rates. From the calculation results, it is known that it can reduce costs by 34% and the final balance decrease is 61% lower compared to the existing policy in the 7-year projection. This can help the Company save on purchases and reduce the risk of accumulation. To optimize material inventory, simulations were conducted using methods without risk pooling, with full risk pooling, and with partial risk pooling. Without risk pooling, there are advantages of high fill rate and high response to disruptions. Meanwhile, with full risk pooling, there are advantages of low holding cost and high material absorption. Lastly, with partial risk pooling, there are moderate advantages where the response to disruptions and fill rate are better compared to full risk pooling, and holding cost is better compared to without risk pooling.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Material Cadang, Poisson, Risk Pooling, Gudang, Transmisi, Spare Parts, Warehouse, Transmission
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD38.5 Business logistics--Cost effectiveness. Supply chain management. ERP
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26101-(S2) Master Thesis
Depositing User:	Bima Dwi Utomo
Date Deposited:	16 Jul 2026 01:49
Last Modified:	16 Jul 2026 01:49
URI:	http://repository.its.ac.id/id/eprint/135057

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