DOI: https://doi.org/10.14710/teknik.v41i3.33710

Technical and Economic Analysis of Ship Launching with Slipway and Airbag KM. Sabuk Nusantara 72 in PT. Janata Marina Indah Shipyard Semarang

*Sunarso Sugeng  -  Department of Industrial Technology, Vocational School, Diponegoro University, Indonesia
Mohammad Ridwan  -  Department of Industrial Technology, Vocational School, Diponegoro University, Indonesia
Suharto Suharto  -  Department of Industrial Technology, Vocational School, Diponegoro University, Indonesia
Samuel Febriary Khristyson  -  Department of Mechanical Engineering Faculty of Engineering, Diponegoro University, Indonesia
Open Access Copyright (c) 2020 TEKNIK

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Abstract
In a ship planning can not be separated from the planning of the ship launching process. A ship can glide perfectly if it has a high enough planning time and costs. The launch process itself is divided into several ways. The choice of this method needs to be considered because it relates to the budget and preparations made. The method used is the calculation according to the numerical approach assisted by computational software. In the first calculation it is planned with the slipway launch, and then the next one is planned with the airbags that have been implemented previously. The purpose of this study is to provide analysis results as a consideration in implementing the slipway and airbag ship launching method on KM ships. Belt Nusantara 72 measuring 2000 DWT. In steps 5 to 6, both the slipway and the airbags experience a stern lift condition with a value (yVd) of 1396.97 ton.  Based on the economic analysis of the hours of people using airbags, there is a decrease in working hours by 44% when compared to the launch using a slipway. This also happened to work productivity where it was 84% more time effective. When viewed from an investment point of view, the use of slipways is actually more economical than airbag, the difference is 43% more economical using slipways. Both types of launch can be applied by looking at the economical side and the ability of each shipyard in carrying out the launching process and seeing the main size of the ship to be launched.
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Keywords: : technical and economic analysis; ship launching; slipway; airbag; KM. Sabuk Nusantara 72

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Language : EN
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  2. Fitriadhy, A., & Malek, A. M. A. (2017). Computational fluid dynamics analysis of a ship’s side launching in restricted waters. Journal of Mechanical Engineering and Sciences, 11, 2993–3003. https://doi.org/10.15282/jmes.11.4.2017.3.0269
  3. He, H., Chen, Z., He, C., Ni, L., & Chen, G. (2015). A hierarchical updating method for finite element model of airbag buffer system under landing impact. Chinese Journal of Aeronautics, 28(6), 1629–1639. https://doi.org/10.1016/j.cja.2015.10.010
  4. Ianagui, A. S. S., & Tannuri, E. A. (2015). Cooperative Sliding Mode Control Applied To A Fleet Of DP Vessels. IFAC-PapersOnLine, 48(16), 299–304. https://doi.org/10.1016/j.ifacol.2015.10.296
  5. Irawanto, Z., Puryantini, N., Ali, B., & Prasodjo, B. (2019). Kajian eksperimental peluncuran kapal menggunakan air bag. Majalah Ilmiah Pengkajian Industri, 13, 55. https://doi.org/10.29122/mipi.v13i1.3243
  6. Mann, B. Q., Maggs, J. Q., Khumalo, M. C., Khumalo, D., Parak, O., Wood, J., & Bachoo, S. (2015). The KwaZulu-Natal Boat Launch Site Monitoring System: A novel approach for improved management of small vessels in the coastal zone. Ocean & Coastal Management, 104, 57–64. https://doi.org/10.1016/j.ocecoaman.2014.12.003
  7. Senjanović, I., Katavić, J., Vukčević, V., Vladimir, N., & Jasak, H. (2020). Launching of ships from horizontal berth by tipping tables – CFD simulation of wave generation. Engineering Structures, 210, 110343. https://doi.org/10.1016/j.engstruct.2020.110343
  8. Song, Z., Xie, Z., Qiu, L., Xiang, D., & Li, J. (2020). Prospects of sea launches for Chinese cryogenic liquid-fueled medium-lift launch vehicles. Chinese Journal of Aeronautics. https://doi.org/10.1016/j.cja.2020.06.018
  9. Thomas, B., Hadfield, M., & Austen, S. (2009). Experimental wear modelling of lifeboat slipway launches. Tribology International, 42(11), 1706–1714. https://doi.org/10.1016/j.triboint.2009.04.043
  10. Tupper, E. (2013). Introduction to Naval Architecture. 7th ed. Oxford, UK: Butterworth-Heinemann
  11. Xiao, Q., Zhou, W., & Zhu, R. (2020). Effects of wave-field nonlinearity on motions of ship advancing in irregular waves using HOS method. Ocean Engineering, 199, 106947. https://doi.org/10.1016/j.oceaneng.2020.106947
  12. Yamagami, T., Iijima, I., Izutsu, N., Kawasaki, T., Matsuzaka, Y., Namiki, M., Saito, Y., Seo, M., Toriumi, M., Tanaka, S., & Matsushima, K. (2006). Launching of a 500,000 cubic meter balloon with the semi-dynamic launching method. Advances in Space Research, 37(11), 2033–2037. https://doi.org/10.1016/j.asr.2006.01.011
  13. Ye, Z. (1994). Dynamics of ships side launching. Computers & Structures, 53(4), 861–865. https://doi.org/10.1016/0045-7949(94)90374-3
  14. Yu, L., Li, Y., Xia, L., Ding, J., & Yang, Q. (2015). Research on mechanics of ship-launching airbags I—Material constitutive relations by numerical and experimental approaches. Applied Ocean Research, 52, 222–233. https://doi.org/10.1016/j.apor.2015.06.008

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