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All Journal TEKNIK KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan GEMA TEKNOLOGI Jurnal Simetris Jurnal Rekayasa Mesin Jurnal Proyek Teknik Sipil Jurnal Teknik Mesin Indonesia Riset Sains dan Teknologi Kelautan
Samuel Febriary Khristyson
Program S1 Teknik Perkapalan Fakultas Teknik Universitas Diponegoro
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : TEKNIK

 1 
Technical and Economic Analysis of Ship Launching with Slipway and Airbag KM. Sabuk Nusantara 72 in PT. Janata Marina Indah Shipyard Semarang Sugeng, Sunarso; Ridwan, Mohammad; Suharto, Suharto; Khristyson, Samuel Febriary
TEKNIK Vol 41, No. 3 (2020): December 2020
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v41i3.33710

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.
Noise Level Analysis of KM. Sabuk Nusantara 71 to Increase Ship Passengers Comfort Based on BKI Rules Sugeng, Sunarso; Ridwan, Mohammad; Sulaiman, Sulaiman; Khristyson, Samuel Febriary
TEKNIK Vol. 42, No. 2 (2021): August 2021
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v42i2.37441

Abstract

Noise is an unwanted sound or sound source which can distract or harm human health and comfort. According to experts, a sound that exceeds the level of human listening senses can cause deafness. Such danger can also be found in ships. An alternative to reduce noise in ships is by modifying the construction.  This research aims to compare noising before and after adding a side deck girder in the engine room of a 2000 DWT ship. The result showed that in the engine room, after adding a FB 180 x 8 mm FP 75 x 10 mm sized T profile, for 0-30 seconds intervals, the maximum noise was down from 127 dB to 62 dB or a 0.47% decrease. Meanwhile, the maximum noise was down from 98.6 dB to 57 dB in the accommodation room or decreased by 0.41%. The maximum noise was down from 83 dB to 37 dB or a 0.56% decrease in the navigation room. Such modification had reduced the average noise range from 80-40 dB to 55-20 dB.
Operational Load on Material Handling Process Stockyard Ship to Port Using Field Tests Sugeng, Sunarso; Ridwan, Mohamad; Khristyson, Samuel Febriary
TEKNIK Vol 46, No 3 (2025): Vol 46, No 3 (2025): July 2025 Publication in-progress
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v46i3.50110

Abstract

Since all equipment needs to be handled correctly, the equipment handling procedure is crucial. in order to ensure the equipment's safe arrival at its destination and to preserve its quality and condition.The method used in this research to analyze the calculation using experiment set with sensor data and observation. Finding the optimal operational load process value during material loading and unloading at the Panjang Port is the aim of this study. From analyze results horizontal direction movement speed of 2 km/h has a pressure value of 37 kPa with a distance of 376 mm from the center end of the pipe being unloaded, across the stress value is at 167 kPa with a stretch distance of less than 300 mm, longitudinal direction of 45 kPa.
Co-Authors Afrizal, Luthfi Andi Trimulyono Budi Utomo Cahyo, Indro Dwi Elfrida Ratnawati Imam Pujo Mulyatno Jayawarsa, A.A. Ketut Leksono, Suryo Hadi Mohamad Ridwan Mohammad Ridwan Suharto Suharto Sulaiman Sulaiman Sunarso Sugeng Wulan, Pawesti Yusim, Adi Kurniawan