Araştırma Makalesi
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Deneme Seyri Planlamasında PERT Uygulaması

Yıl 2021, Sayı: 220, 122 - 134, 31.12.2021
https://doi.org/10.54926/gdt.982662

Öz

Bu çalışmada üretim sürecinin sonuna yaklaşmış, fabrika kabul ve liman kabul testleri tamamlanmış olan bir geminin deneme seyri sırasında yapılacak olan testler için bir planlama yapılmıştır. Deneme seyrinde gerçekleştirilen testler ve bunların yaklaşık süreleri gerçek bir deneme seyri gözleminden elde edilmiştir. Çalışmada deneme seyri bir proje olarak ele alınarak öncelikle gerçekleştirilecek testler birer aktivite olarak kabul edilmiş ve liste halinde belirlenmiştir. Daha sonra testleri gerçekleştirecek kişiler kaynak olarak atanmıştır. Bunun ardından testler arasındaki öncül-ardıl ilişkileri incelenerek aynı zaman diliminde yapılabilecek ve birbirlerini etkilemeyecek testler belirlenmiştir. Bu sayede testler için gerekli kaynak atamaları yapılarak uygun bir seyir çizelgesi elde edilmeye çalışılmıştır. Ayrıca elde edilen çizelge kullanılarak deneme seyri için kritik yol tespit edilmiştir. Böylece hangi testlerin kritik olduğu belirlenmiştir. Ayrıca PERT (Program Evaluation and Review Technique) analizi yapılarak deneme seyrinin tamamlanma süresinin beklenen değeri ve standart sapması hesaplanmıştır. Bunun yanı sıra standart z tablosu yardımı ile farklı deneme seyir süresi değerleri için olasılık hesapları yapılmıştır. Burada altı farklı deneme seyir süresi için altı farklı ihtimal değeri belirlenmiştir. Ayrıca hazırlanan seyir çizelgesi ile deneme seyrinde her bir kaynağa düşen iş miktarları ayrı ayrı hesaplanmıştır. Yine buna paralel olarak, hazırlanan çizelge üzerindeki her bir testin iş miktarı da belirlenmiştir. Bu çalışmada yapılmış olan uygulamada olduğu gibi, öncelikle deneme seyrinin planlaması yapılıp bu plana uygun bir şekilde hareket edilerek deneme seyrinin daha başarılı bir şekilde tamamlanabileceği düşünülmektedir.

Kaynakça

  • Abdel-latif, S., Abdel-geliel, M. ve Zakzouk, E.,E. (2013). Simulation of Ship Maneuvering Behavior Based on the Modular Mathematical Model, 21st Mediterranean Conference on Control & Automation, June, Crete, Greece, 94-99. Akan, E. ve Bayar, S. (2021). “Interval type-2 fuzzy program evaluation and review technique for project management in shipbuilding”, Ships and Offshore Structures, 1-19, https://doi.org/10.1080/17445302.2021.1950350
  • Aktan, N. (1995). Gemilerin Liman ve Deniz Tecrübelerinin Planlanması, Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, İstanbul.
  • Aslıyüksek, M. (2013). Türkiye Özel Sektör Tersanelerinde Askeri Gemi İnşa Projeleri Test ve Tecrübe Yönetimi, Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, İstanbul.
  • Doğan, ÜB. ve Helvacioğlu İH. (2017). ”Customized project management methods and their applications in shipbuilding projects”, GİDB Dergi. Vol 10, 3–20.
  • Fulser, G. (2012). Askeri ve Sivil Gemi İnşa Sürecinde Test ve Kabul Faaliyetlerinin Planlaması ve Optimizasyonu, Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi, Fen bilimleri Enstitüsü, İstanbul.
  • Genç, Y. ve Özkök, M. (2020), “Simulation-Based Optimization of the Sea Trial on Ships”, Journal of ETA Maritime Science, Vol. 8(4), 274-285.
  • Goldratt, E., M., Cox, J. (1992). The Goal: A Process of Ongoing Improvement, Second Revised Edition, North River Press.
  • Hwang In H., Kim Y., Lee D. K., Shin J. G. (2014), “Automation of block assignment planning using a diagram-based scenario modeling method”, Int. J. Nav. Archit. Ocean Eng., Vol. 6, 162-174.
  • IMO Circular MSC/Circ. (2002). Explanatory Notes to the Standards for Ship Maneuverability, International Maritime Organization, 1053.
  • Kafalı M., Özkök M. (2015), “Evaluation of shipyard selection criteria for shipowners using a fuzzy technique”, Journal of Marine Engineering & Technology, Vol. 14(3), 146-158.
  • Kafalı M., Eren Ş., Helvacıoğlu İ. H. and Ünsan Y. (2021). A study on sub work package determination methodology for shipyards, Ships and Offshore Structures, 1-11. doi: 10.1080/17445302.2021.1943848.
  • Lee J. M., Jeong Y-K., Woo J. H. (2018). Development of an Evaluation Framework of Production Planning for the Shipbuilding Industry. International Journal of Computer Integrated Manufacturing, Vol. 31(9), 831-847.
  • Nicholas, J.M. and Steyn, H. (2008). “Project management for business, engineering, and technology: Principles and practice”, Elsevier, Canada, Ed 3.
  • Song, Y.J., Woo, J.H., & Shin, J.G. (2011). Research on systematization and advancement of shipbuilding production management for flexible and agile response for high value offshore platform. International Journal of Naval Architecture and Ocean Engineering, 3(3), 181-192.
  • Turan, E. and Asar, R. 2020. “Ship repair and maintenance management: application of PERT analysis on a tanker vessel. Journal of Ship Production and Design. Vol. 36(3): 181–188.
  • Wang, H., Guo, Y., Liang, X., & Yi., H. (2019). A function-oriented quality control method for shipbuilding. Ships and Offshore Structures, 14(2), 220-228.

PERT Application for Sea Trial Planning

Yıl 2021, Sayı: 220, 122 - 134, 31.12.2021
https://doi.org/10.54926/gdt.982662

Öz

In this study, a planning has been made for the tests to be carried out during the sea trial of a ship, which is near the end of the production process and whose factory acceptance and harbor acceptance tests have been completed. Sea trial tests and their approximate durations are derived from a real sea trial observation. The sea trial was viewed as a project in the study, and first, the tests to be carried out were accepted as an activity and listed. Then, the people who will conduct the tests are assigned as resources. Following that, the predecessor-successor relationships between the tests were investigated, and the ones that could be performed concurrently and without interfering with one another were identified. In this way, the necessary resource assignments for the tests were made and an appropriate sea trial schedule was tried to be obtained. In addition, the critical path for sea trial was determined by using the obtained schedule. Thus, the critical tests were identified. In addition, PERT (Program Evaluation and Review Technique) analysis was performed to calculate the expected value and standard deviation of the completion time of sea trial. Furthermore, probability of the different sea trial completion times are calculated with the help of the standard z table. Here, six different probability values are determined for six different sea trial times. Additionally, with a sea trial schedule prepared, the amount of work falling on each resource during the sea trial was calculated separately. Additionally, the amount of work falling on each resource is calculated separately. As in the practice in this study, it is thought that the sea trial can be completed more successfully by planning the sea trial first and acting in accordance with this plan.

Kaynakça

  • Abdel-latif, S., Abdel-geliel, M. ve Zakzouk, E.,E. (2013). Simulation of Ship Maneuvering Behavior Based on the Modular Mathematical Model, 21st Mediterranean Conference on Control & Automation, June, Crete, Greece, 94-99. Akan, E. ve Bayar, S. (2021). “Interval type-2 fuzzy program evaluation and review technique for project management in shipbuilding”, Ships and Offshore Structures, 1-19, https://doi.org/10.1080/17445302.2021.1950350
  • Aktan, N. (1995). Gemilerin Liman ve Deniz Tecrübelerinin Planlanması, Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, İstanbul.
  • Aslıyüksek, M. (2013). Türkiye Özel Sektör Tersanelerinde Askeri Gemi İnşa Projeleri Test ve Tecrübe Yönetimi, Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, İstanbul.
  • Doğan, ÜB. ve Helvacioğlu İH. (2017). ”Customized project management methods and their applications in shipbuilding projects”, GİDB Dergi. Vol 10, 3–20.
  • Fulser, G. (2012). Askeri ve Sivil Gemi İnşa Sürecinde Test ve Kabul Faaliyetlerinin Planlaması ve Optimizasyonu, Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi, Fen bilimleri Enstitüsü, İstanbul.
  • Genç, Y. ve Özkök, M. (2020), “Simulation-Based Optimization of the Sea Trial on Ships”, Journal of ETA Maritime Science, Vol. 8(4), 274-285.
  • Goldratt, E., M., Cox, J. (1992). The Goal: A Process of Ongoing Improvement, Second Revised Edition, North River Press.
  • Hwang In H., Kim Y., Lee D. K., Shin J. G. (2014), “Automation of block assignment planning using a diagram-based scenario modeling method”, Int. J. Nav. Archit. Ocean Eng., Vol. 6, 162-174.
  • IMO Circular MSC/Circ. (2002). Explanatory Notes to the Standards for Ship Maneuverability, International Maritime Organization, 1053.
  • Kafalı M., Özkök M. (2015), “Evaluation of shipyard selection criteria for shipowners using a fuzzy technique”, Journal of Marine Engineering & Technology, Vol. 14(3), 146-158.
  • Kafalı M., Eren Ş., Helvacıoğlu İ. H. and Ünsan Y. (2021). A study on sub work package determination methodology for shipyards, Ships and Offshore Structures, 1-11. doi: 10.1080/17445302.2021.1943848.
  • Lee J. M., Jeong Y-K., Woo J. H. (2018). Development of an Evaluation Framework of Production Planning for the Shipbuilding Industry. International Journal of Computer Integrated Manufacturing, Vol. 31(9), 831-847.
  • Nicholas, J.M. and Steyn, H. (2008). “Project management for business, engineering, and technology: Principles and practice”, Elsevier, Canada, Ed 3.
  • Song, Y.J., Woo, J.H., & Shin, J.G. (2011). Research on systematization and advancement of shipbuilding production management for flexible and agile response for high value offshore platform. International Journal of Naval Architecture and Ocean Engineering, 3(3), 181-192.
  • Turan, E. and Asar, R. 2020. “Ship repair and maintenance management: application of PERT analysis on a tanker vessel. Journal of Ship Production and Design. Vol. 36(3): 181–188.
  • Wang, H., Guo, Y., Liang, X., & Yi., H. (2019). A function-oriented quality control method for shipbuilding. Ships and Offshore Structures, 14(2), 220-228.
Toplam 16 adet kaynakça vardır.

Ayrıntılar

Birincil Dil Türkçe
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Mustafa Kafalı 0000-0002-8077-1686

Yusuf Genç 0000-0002-4903-5015

Yayımlanma Tarihi 31 Aralık 2021
Yayımlandığı Sayı Yıl 2021 Sayı: 220

Kaynak Göster

APA Kafalı, M., & Genç, Y. (2021). Deneme Seyri Planlamasında PERT Uygulaması. Gemi Ve Deniz Teknolojisi(220), 122-134. https://doi.org/10.54926/gdt.982662