Lestari, Cindy (2017) Pengembangan Model Kebijakan Maintenance dengan Mempertimbangkan Perpanjangan Periode Lease. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Harga beli dan biaya perawatan peralatan semakin mahal, sehingga perusahaan mempertimbangkan untuk lease peralatan daripada membelinya. Perpanjangan periode lease akan memberikan keuntungan lebih banyak, baik bagi pihak lessor (yang menyewakan) maupun pihak lessee (penyewa). Pada penelitian sebelumnya, perpanjangan periode lease ditawarkan pada awal kontrak. Bagi pihak lessee, model ini memiliki resiko dalam pembiayaan seperti ketidakpastian performansi peralatan dan tanggung jawab lessor. Oleh karena itu, penelitian ini mencoba untuk memodelkan kebijakan maintenance yang optimal dengan mempertimbangkan perpanjangan periode lease (extended lease) yang ditawarkan pada akhir masa kontrak. Tujuannya untuk menghilangkan resiko yang ada pada penelitian sebelumnya. Minimal repair dilakukan untuk memperbaiki peralatan gagal agar kembali ke kondisi operasional, sedangkan imperfect preventive maintenance untuk meningkatkan kondisi operasional peralatan ketika mencapai batas kontrol optimal agar terhindar dari kegagalan. Model matematika dibangun untuk menentukan batas kontrol, jumlah dan degree preventive maintenance, serta jumlah periode extended lease optimal. Pada bagian akhir, percobaan numerik diberikan untuk menunjukkan pengaruh panjang extended lease dan kebijakan maintenance dalam memaksimalkan keuntungan lessor.
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The purchase price and maintenance cost of the equipment are more expensive, thus the company considers to lease the equipment instead of purchase it.
The lease period extension will provide more benefits for both the lessor (owner) and the lessee (user).
In a previous research, the lease period extension
was offered in the beginning of the contract.
For the lessee, this model had some risks in finance, such as uncertainty of the equipment performance and lessor responsibility. Therefore, this research attemps to modelling the optimal maintenance policy by considering lease period extension (extended lease) that is offered in
the ending of the contract. It aims to eliminate some
risks in the previous research.
Minimal repair is performed to rectify a failed equipment back to its operasional state, while imperfect preventive
maintenance is conducted to improve the operasional state of the equipment when reaches a controlled limit to
avoid failures. The mathematical model is constructed
to determine the optimal controlled limit, number and degree of preventif maintenance, and number of extended lease period. Finally, numerical examples are given to illustrate the influences of the optimal length of the extend ed lease and the maintenance policy to maximize profit of the lessor.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Batas kontrol, Extended lease, Minimal repair, Preventive maintenance, controlled limit, extended lease, minimal repair, preventive maintenance |
| Subjects: | L Education > LB Theory and practice of education T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105.546 Computer algorithms |
| Divisions: | Faculty of Industrial Technology > Industrial Engineering > 26101-(S2) Master Thesis |
| Depositing User: | Cindy Lestari . |
| Date Deposited: | 30 Oct 2017 03:11 |
| Last Modified: | 08 Mar 2019 03:56 |
| URI: | http://repository.its.ac.id/id/eprint/44700 |
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