Tebiary, An Apriyani (2017) Studi Implementasi Lean Six Sigma Dengan Pendekatan Value Stream Mapping Untuk Meminimumkan Non Value Added Activity Di Industri Galangan Kapal (Studi Kasus Di PT. Dumas Tanjung Perak Shipyard Surabaya). Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Ketatnya persaingan pasar dalam era globalisasi ini mendorong perusahaan galangan kapal nasional untuk terus menyadari pentingnya meningkatkan efektivitas dan efisiensi proses produksinya, sehingga, mampu bersaing baik dipasar lokal maupun di pasar internasional. Selama ini tingkat produktivitas galangan kapal nasional masih rendah, terutama aspek pembangunan kapal yang masih lama. Salah satu penyebabnya adalah masih banyaknya non value added activity
Konsep lean sigma merupakan integrasi metode dalam proses manufacture yaitu lean manufacture dan six sigma yang saling menguatkan, dimana Lean berfokus pada waste sedangkan six sigma lebih berfokus pada proses improvement. Studi implementasi kedua metode ini dilakukan pada studi kasus pembangunan kapal di PT. Dumas Tanjung Perak Shipyard (PT. Dumas). Dengan melakukan studi implementasi lean six sigma dengan pendekatan value stream mapping ini diharapkan mampu menghilangkan atau meredusir waste (non value added activity) dalam meningkatkan performansi yang terjadi pada proses pembangunan kapal.
Hasil penelitian menunjukan perhitungan six sigma didapat nilai DPMO ( Defect per Million Oppurtunities ) yang kemudian dikonversikan ke dalam nilai sigma dan diperoleh nilai kapabilitas sigma untuk proses produksi kapal dengan aktivitas pengelasan sebesar 3,82. Dengan menggunakan kajian Process Activity Mapping didapat waktu efektif PT. Dumas saat ini adalah sebesar 85 persen. Pada proses perbaikan selanjutnya waktu efektif perusahaan dapat ditingkatkan mencapai 91 persen. Dari hasil penelitian ditarik kesimpulan bahwa penerapan konsep Process Activity Mapping dapat diterapkan sebagai alat ukur dan dilaksanakan pada perusahaan galangan kapal dalam pengendalian awal terhadap aktivitas yang tidak bernilai tambah.
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Tight market competition in this globalization era, encourages the national shipbuilding company to continue to realize the importance of increasing the effectiveness and efficiency of its production process, thus, able to compete in both local and international markets. So far, the national shipyard productivity level is still low, especially the aspect of shipbuilding which is still taking longer production time. One of the causes is the number of non-value added activities that increase the length of production time.
The concept of lean sigma is the integration of methods in the manufacturing process of lean manufacturing and six sigma that mutually reinforcing, where Lean focuses on waste aspect, while six sigma is more focused on the improvement process. Study of the implementation of both methods is done on shipbuilding case study at PT. Dumas Tanjung Perak Shipyard (PT Dumas). By conducting a lean six sigma implementation study with value stream mapping approach, is expected to eliminate or reduce waste (non-value added activity) in improving the performance that occurs in shipbuilding process.
The result of the research shows that six sigma calculation got DPMO value (Defect per Million Oppurtunities) which then converted into sigma value and obtained sigma capability value for ship production process, with welding activity score 3,82 (Defect per Million Oppurtunities). By using Process Activity Mapping study, the current obtained effective time of PT. Dumas is 85 percent. In the process of further improvement, the company's effective time can be increased up to 91 percent. The results of the study concluded that the application of the concept of Process Activity Mapping can be applied as a measuring tool and implemented in shipbuilding companies in the initial control of activities that are notvalue-added.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Lean six sigma, non value added activity, value stream mapping. |
| Subjects: | V Naval Science > V Naval Science (General) |
| Divisions: | Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36101-(S2) Master Thesis |
| Depositing User: | An Apriyani Tebiari |
| Date Deposited: | 20 Oct 2017 08:15 |
| Last Modified: | 05 Mar 2019 08:41 |
| URI: | http://repository.its.ac.id/id/eprint/47772 |
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