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Analisa Ketidakpastian Pengujian Resistance Model Kapal LCT 1000 DWT Purnamasari, Dian; Dinariyana, AAB.; Soetardjo, Meitha
Wave: Jurnal Ilmiah Teknologi Maritim Vol 4, No 1 (2010)
Publisher : Wave: Jurnal Ilmiah Teknologi Maritim

Uji tahanan yang dilakukan di tangki tarik memiliki kesalahan (ketidakpastian) pada hasil. Analisa ketidakpastian dapat digunakan untuk mengevaluasi kualitas data percobaan dan menyediakan perkiraan kuantitatif kesalahan percobaan. Metodologi analisa ketidakpastian, prosedur, dan hasil disajikan untuk uji tahanan model kapal LCT 1000 DWT skala (?) 15 dengan ukuran model kapal L = 3,997 M, B = 1000 M, T = 0,167 M, WSA = 4,089 M2, Prosedur dirangkum dan mengikuti International Towing Tank Conference (ITTC) Kualitas Manual Prosedur. Hasil penelitian menunjukkan nilai ketidakpastian sebesar 1,27% dari kecepatan 1,3271 m/s dan nilai ketidakpastian sebesar 4,79% dari tahanan 1,2771 kg.Keywords : Uncertainty analysis, Procedures, Ship model test.

ANALISA KETIDAKPASTIAN PENGUJIAN RESISTANCE MODEL KAPAL LCT 1000 DWT Purnamasari, Dian; Dinariyana, AAB.; Soetardjo, Meitha
Wave: Jurnal Ilmiah Teknologi Maritim Vol 4, No 1 (2010)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Uji tahanan yang dilakukan di tangki tarik memiliki kesalahan (ketidakpastian) pada hasil. Analisa ketidakpastian dapat digunakan untuk mengevaluasi kualitas data percobaan dan menyediakan perkiraan kuantitatif kesalahan percobaan. Metodologi analisa ketidakpastian, prosedur, dan hasil disajikan untuk uji tahanan model kapal LCT 1000 DWT skala (?) 15 dengan ukuran model kapal L = 3,997 M, B = 1000 M, T = 0,167 M, WSA = 4,089 M2, Prosedur dirangkum dan mengikuti International Towing Tank Conference (ITTC) Kualitas Manual Prosedur. Hasil penelitian menunjukkan nilai ketidakpastian sebesar 1,27% dari kecepatan 1,3271 m/s dan nilai ketidakpastian sebesar 4,79% dari tahanan 1,2771 kg.Keywords : Uncertainty analysis, Procedures, Ship model test.

Database Integration Model for Automatic Identification System and Shipping Database In Real Time Traffic Monitoring Maulidi, Akhmad; Pitana, Trika; Artana, Ketut Buda; Dinariyana, A.A. Bagus; Zaman, Muhammad Badrus; Masroeri, Agoes A.; Sembiring, Ricky Randall
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.451

In recent years, there are so many marine accidents in the world such as ship sinking (37%), grounding (13%), collisions (15%), fire (18%) and other types of accidents (17%). While the causes of the ship accident are 37% of human error, technical error of 23%, 38% due to natural conditions, and 2% to other causes. One of the causes is the weakness of the identification and monitoring the ships passing through the shipping channel in Indonesia. Automatic Identification System (AIS) on the previous research has been carried out with the integration of Geographic Information System (GIS) that allows measuring the use of AIS for fuels monitoring and the development of ship inspection priority system based on the level of risk held by each vessel. Those studies are expected to minimize the level of accidents that occurred in Indonesian waters. However, the result of previous studies showed that the identity of the ship is still conducted separately. It is thus necessary to perform data integration with databases AIS vessel into a database server. This research is focused on the development of the integration between AIS data and shipping database, therefore, It could be used as the backbone of integration system for measuring safety and pollution of the ships, such as basis for monitoring traffic analysis, estimates of air pollution, vessel inspections in real time and direct search vessel identity.

Analisis Penyebab Keterlambatan Proyek Konstruksi Transmisi dan Gardu Induk: Studi Kasus Unit Induk Pembangunan Jawa Bagian Timur dan Bali (UIP JBTB) Prawidhana, Denta; Dinariyana, AAB
Rekayasa Vol 17, No 3: Desember, 2024
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v17i3.28014

As many as 87.63% of PT PLN (Persero) UIP JBTB Transmission and Substation construction projects in the 2010-2023 range experienced delays. The purpose of this study is to determine the main factors that contribute to project delays from the perceptions of internal, supervision consultants, and contractors and provide suggestions to Management to minimize potential losses due to delays in project completion in the future. The methods used in this research are literature study, data collection through survey, data analysis, and conclusion. Data analysis is done quantitatively using Frequency Index and Relative Importance Index, Independent T Test, Cartesian Diagram, and 5 Why's. The results of this study indicate that there are 5 most influential variables in delays, namely delays in land acquisition, community social conflicts, labor shortages, delays in submitting drawings, and cash flow difficulties. Strategic steps to overcome delays in project completion are to select prospective land for transmission and substation construction projects on undisputed land, create a project security MoU by involving security forces either TNI or Polri, create a smoother financial flow system, create an easy and effective payment system in the project, and monitor the administrative process and create an easier and safer document management system.

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