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All Journal Jurnal Pendidikan Teknik dan Vokasional Current STEAM and Education Research
Sitanggang, Renata Kantate Getsemani
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Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Engineering Environmental Science Mechanical Engineering Physics Transportation Other

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Educational Simulation of Hull Deflection in Ro-Ro Ferry Vessels: Analyzing Hydrostatic Pressure with Variations in Plate Thickness and Seawater Depth Istiqomah, Rika; Rozak, Dewi Nur Lathifa Abdul; Sitanggang, Renata Kantate Getsemani; Fatmawati, Alifah Widya
Current STEAM and Education Research Vol. 2 No. 3 (2024): Current STEAM and Education Research, Volume 2 Issue 3, December 2024
Publisher : MJI Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58797/cser.020305

Abstract

The construction system is one of the most considered aspects in designing a ship, as the strength of the structure is the most crucial element that ensures the safety of the crew, passengers, and cargo carried. The ship's construction design must be able to withstand various loads or forces, both from inside and outside the ship. The purpose of this study is to determine the deflection of the Ferry Ro-Ro hull due to hydrostatic pressure with variations in plate thickness and seawater depth. This research uses modeling of the Ro-Ro ferry plate deflection due to seawater hydrostatic pressure with the finite difference method. The simulation results show that increasing the plate thickness from 10.0 mm, 15.0 mm, 20.0 mm to 25.0 mm significantly reduces the hull deflection, with the maximum deflection from about 2400 mm decreasing to less than 500 mm. In addition, the water depth also affected the deflection, where an increase in depth from 5 m, 10 m, and 15 m, caused the maximum deflection to increase from about 150 mm to 450 mm. The deflection pattern is parabolic with the maximum deflection occurring at the center of the ship, as the largest hydrostatic pressure distribution is at the center of the ship.
PENGARUH MEDIA PLANETARY POP-UP TERHADAP PERKEMBANGAN KOGNITIF SISWA SMPN 14 BOGOR Haniyah, Maisan; Rozak, Dewi Nur Lathifa Abdul; Nursamsu, Alisah; Sitanggang, Renata Kantate Getsemani; Istiqomah, Rika; Oktaviani, Maya
Jurnal Pendidikan Teknik dan Vokasional Vol. 6 No. 1 (2023): Jurnal Pendidikan Teknik dan Vokasional
Publisher : LPPM, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JPTV.6.1.28

Abstract

This research aims to explore the boundaries opened by using Planetary Pop-Up media and reveal the extent to which this media can enrich students' cognitive abilities. The focus is to deepen understanding of the solar system and the invaluable sun. The method used is Research and Development (R&D) with the ADDIE development approach which includes the stages of analysis, design, development, implementation, and evaluation. The population of this study included all grade 7 students at SMPN 14 Bogor, and the sample was selected randomly using the Simple Random Sampling (SRS) method to ensure fairness in selection. Data collection was carried out through media trials, interviews, pre-test, and post-test. Data analysis used the T-test technique, focusing on paired t-tests to reveal differences before and after using Planetary Pop-Up media. The results of the analysis show that the use of this media does not provide a significant difference in the average pre-test and post-test scores. It is hoped that these findings can significantly contribute to the development of effective learning media, especially in improving students' cognitive abilities. Apart from that, it is hoped that this research can also be a reference for other researchers interested in conducting similar research using a Piagetian theory-based approach. This discovery is a step towards miracles in the world of education, and it is hoped that it will inspire other daredevils to undertake similar adventures. In all the uniqueness and light found, the hope is that these findings will become a guide that guides knowledge seekers to the right path, creating untold miracles in the world of education.
Co-Authors Fatmawati, Alifah Widya Haniyah, Maisan Istiqomah, Rika Nursamsu, Alisah Oktaviani, Maya Rozak, Dewi Nur Lathifa Abdul