Article Per Year (5 Year)
p-Index From 2020 - 2025
1.94
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Saintek Jurnal Pendidikan Teknik Mesin Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Sainteknol : Jurnal Sains dan Teknologi Jurnal Rekayasa Mesin HIGEIA (Journal of Public Health Research and Development) J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Abdimasku : Jurnal Pengabdian Masyarakat Jurnal Inovasi Mesin Jurnal Riptek Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran
Karnowo -
Unknown Affiliation
Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

Published : 39 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran

 1 
Design and Construction of a Leisure Boat Bottom Glass Prototype as An Underwater Panorama Tourism Ride in Karimunjawa Aryadi, Widya; Bahatmaka, Aldias; Karnowo, Karnowo; Rumondang, Juwita Ria; Rumapea, Fedrik Immanuel; Kurniawan, Ahmad Khusom; Kusuma, Anwar Widjaya; Hidayat, Indra Nurul
Rekayasa Vol. 22 No. 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v22i1.13881

Abstract

The lack of proper tourism infrastructure often limits the potential of marine ecotourism. In Karimunjawa, coral reef tourism is a major attraction. However, accessibility remains an issue, especially for visitors who cannot swim or dive. This research focuses on the design and construction of a glass-bottom leisure boat prototype to provide a safe and immersive underwater panorama experience. This study falls within naval architecture and marine engineering, addressing the challenge of designing a stable, efficient, and safe tourism vessel. A key concern in ship design is balancing hydrodynamic efficiency with stability. While monohull boats are common, their transverse stability is relatively low. To overcome this, a catamaran hull configuration was chosen for better stability, larger deck space, and reduced resistance. The prototype was constructed with dimensions of 21.81 m in length, 2.63 m in height, and 7.51 m in width, featuring a glass-bottom viewing area to enhance the tourism experience. Hydrodynamic performance analysis showed an average increase in resistance of 12.39307 N as speed increased, demonstrating the vessel’s efficiency. The construction and testing process confirmed that the catamaran hull improves passenger safety, minimizes capsizing risk, and enhances the underwater viewing experience. This research contributes to sustainable marine tourism by introducing an innovative tourism ride that allows visitors to explore the underwater beauty of Karimunjawa without requiring diving skills. The successful design and construction of this prototype provide a model for future eco-aafriendly tourism vessels.
Welding Automation Design using Metal Inert Gas for Straight and Circular Welding Suwandi Marwoto; Dwi Saputro, Danang; Karnowo, Karnowo; Maulana, Sonika
Rekayasa Vol. 22 No. 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v22i1.16187

Abstract

An automatic welding machine is a tool used to carry out welding semi-automatically. The welding process is carried out using an Arduino as a microcontroller and a TB6560 driver as a Nema 23 stepper motor driver. Operation of the tool is carried out using Candle software. The tool movement system uses a lead screw and nut block on the Z axis as well as a timing belt and timing pulley to drive the X and Y axes. This machine has dimensions of 1200 mm long, 800 mm wide and 1250 mm high. The research model used is RnD. Tool testing is carried out by giving movement commands in the form of straight lines and circles to determine the accuracy of the movement, then testing is carried out using a welding machine to determine the welding results. Testing was carried out with variations of straight lines with variations of 18 mm, 24 mm, 25 mm, 30 mm, 36 mm, 42 mm, 50 mm, 75 mm, 100 mm, 125 mm and circle variations of 50 mm, 75 mm and 100 mm. Each variation was tested 3 times to produce an average backlash of 0.250 mm. Automatic welding machine can produce neat and even welds on straight welding, but there are still shortcomings in the results of circular and square welding. Adjustment of welding parameters and settings on the welding machine used needs to be done to improve the quality of the weld results.
Co-Authors - Supraptono  A.A. Ketut Agung Cahyawan W Al Janan, Dony Hidayat Aldias Bahatmaka Ari Dwi Nur Indriawan Musyono Bunyamin Bunyamin Cahya Wulandari Dony Hidayat Al-Janan Faadhil, Muhammad Faadhil, Muhammad Galuh Nita Prameswari Hadromi - Hendrix Noviyanto Firmansyah, Hendrix Noviyanto Hidayat, Indra Nurul Husodo, Martanto Setyo Husodo, Martanto Setyo I Ketut Suada Jeri Pranio Kurniawan, Ahmad Khusom Kurniawan, Muhammad Kusuma, Anwar Widjaya M Burhan R M. Burhan Rubai Wijaya Muh Sholeh Muhammad Helmi Firdos, Muhammad Helmi Naryatmojo, Deby Luriawati Nisriinaa, Choirun Novian Arjin Adinugroho Nur Siyam Pratama, Tegar Unggul R., Senthot Dhimas W R., Senthot Dhimas W Rizal  Fallevi Romadhoni  Rizqi Fitri Naryanto Rumapea, Fedrik Immanuel Rumondang, Juwita Ria S. Anis, S. Samsudin Anis Saputra, Danang Dwi SATRIYAS ILYAS Sonika Maulana Sucihatiningsih Dian Wisika Prajanti Sudarman Sudarman Sunyoto Sunyoto Suwandi Marwoto Syah, Fahma Ilmian Syah, Fahma Ilmian Verawati Sanjoyo Wahyudi Wahyudi Wara Dyah Pita Rengga Wicaksana, Amri Wicaksana, Amri Widi Widayat Widya Aryadi Widya Hary Cahyati Wirardi, Profit