Zakaria, Reyhan Fajar (2021) Designing Simulation Model For Determining Optimal Coal Safety Stock In PT. X & Supply Chain Risk Analysis With Failure Mode Effect Analysis (FMEA). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini menguraikan mengenai titik reorder point batubara dan analisis risiko untuk rantai pasok batubara PT. X dengan tujuan mengurangi tingkat persediaan rata-rata dan memahami risiko rantai pasok. Rantai pasok dianalisis dan dimodelkan menggunakan model discrete event simulation. Titik pemesanan ulang eksisting yang digunakan oleh perusahaan dihitung dengan menggunakan rumus normal safety stock yang dikemukakan oleh Ballou, 2004. Simulasi kejadian diskrit kemudian digunakan untuk menganalisis tingkat persediaan rata-rata yang ada. Tingkat titik pemesanan ulang batubara kemudian dioptimalkan dengan menggunakan trial-and-error experiment menggunakan model simulasi dengan constraint menjaga tingkat service di atas 95%. Tingkat inventory maksimal dari setiap tingkat reorder point kemudian dibandingkan dengan kapasitas stockpile yang tersedia. Setelah optimasi, ada kemungkinan skenario dimana reorder point optimal tidak lagi valid. Skenario ini diidentifikasi dengan menggunakan analisis risiko rantai pasok yang menggunakan Failure Mode and Effect Analysis untuk mengeksplorasi kemungkinan kegagalan yang dapat menyebabkan titik reorder point yang optimal berubah dan perlu dievaluasi ulang
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This research elaborates regarding to the coal reorder point and risk analysis for coal supply chain of PT. X with the goal of reducing average inventory level and understanding supply chain risk. The supply chain is analyzed and modelled using a discrete event simulation model. The existing reorder point used by the company is calculated by using the normal safety stock formula proposed by Ballou, 2004. The discrete event simulation is then used to analyze the existing average inventory level. Coal reorder point level is then optimized by using trial-and-error experiment utilizing the simulation model while keeping service level above 95%. The maximum inventory level of each reorder point level is then compared with the stockpile capacity available. After optimization, there might be scenarios when the optimal reorder point is no longer valid. These scenarios are identified by using supply chain risk analysis which uses Failure Mode and Effect Analysis to explore the possible failures which might cause the optimal reorder point to change and need to be re-evaluated.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Coal Supply Chain, Safety Stock, Reorder Point, Inventory Level, Stockpile Capacity, Discrete Event Simulation Model, Failure Mode and Effect Analysis |
| Subjects: | T Technology > T Technology (General) > T174.5 Technology--Risk assessment. T Technology > T Technology (General) > T57.62 Simulation |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Industrial Engineering > 26201-(S1) Undergraduate Thesis |
| Depositing User: | Reyhan Fajar Zakaria |
| Date Deposited: | 26 Aug 2021 02:47 |
| Last Modified: | 26 Aug 2021 02:47 |
| URI: | http://repository.its.ac.id/id/eprint/90494 |
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