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Journal : Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin

DESAIN DAN ANALISIS CASE LINFLOW WATER METER DENGAN MENGGUNAKAN METODE CAD Nuryadi, Rio Arian Syaputra; Suryadi, Dedi; Nizam, Ahmad
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 9 No. 1 (2025): April 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v9i1.40091

Abstract

Linflow water meter is a smart technology-based water consumption meter designed to improve accuracy and efficiency in water resource management, both in the household, commercial, and industrial sectors. To protect the sensitive components inside and ensure the durability of the tool in a wide range of environmental conditions, a reliable case design is required. This study aims to design and analyze the linflow water meter casing by considering the aspects of pressure resistance, protection against moisture and temperature, as well as conducting static and thermal analysis to evaluate the structural integrity and performance of the water meter, ensuring that it meets industry standards for efficiency and durability. The methodology used includes the selection of materials that are resistant to stress and corrosion, the design of ergonomic casing structures, and durability simulations using the finite element analysis (FEA) method. The results of the analysis show that the high-quality polymer material with the addition of an anti-corrosion coating provides optimal protection for the operational environment. In addition, the modular design of the case makes it easy to install and maintain without affecting the integrity of the device. These findings are expected to improve the design process and operational reliability of water meters, thereby supporting effective drainage management and infrastructure protection.
ANALISA RESPON GETARAN PADA TURBIN FRANCIS DENGAN MENGGUNAKAN SINYAL SUARA M.Hapis Apmarwansahrowi; Dedi Suryadi; Helmizar
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 6 No. 1 (2022): April 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v6i1.25450

Abstract

Damage is very common in the PLTA Hydroelectric francis turbine, usually appearing on parts, clutches, gears, bearings, or other drive components. Proper fault diagnosis can help to reduce or even prevent breakdowns. To identify damage to the turbine can use sound signal analysis. This method analyzes using sound signals. By analogizing vibrations as sound waves produced by mechanical vibrations, it is hoped that the sound signal can be used as a parameter to determine the condition of the turbine. In this study, to get the best signal, a microphone is used as a sensor to capture sound signals which are placed on the guide bearing of the hydropower test turbine. The sound signal in the time domain is then transferred to a signal in the frequency domain using Fast Fourier Transform (FFT). The results of the test showed that there were 2 active frequencies, 1x rpm and 2x rpm at a turbine rotation of 500 rpm for 6 days of testing. These characteristics indicate the identification of the problem of the bent shaft on the turbine.
ANALISIS DINAMIK PADA KOMPONEN FLAP ARMS (FAIRING) PESAWAT NC 212 DI PT. DIRGANTARA INDONESIA Yanuardi, Endi; Suryadi, Dedi; Supardi, Nurul Iman
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 9 No. 2 (2025): Oktober 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v9i2.41627

Abstract

Airplanes are one of the safest modes of transportation, to ensure this safetyness an analysis is needed to understand the response of the aircraft components. One of them is the fairing on the flap arms, which is part of the aircraft wing structure, where this component supports the movement of the aircraft's flaps. Fairing will experience loading during takeoff, top speed, and landing. One of the loads that occur on the fairing is air pressure. The use of the finite element ethod (FEM) as a method to determine the response of the fairing after being subjected to dynamic loading. In the take-off condition, the total deformation is  mm and the equivalent stress is 5,17 Pa. In the top speed condition, the total deformation is   mm and the equivalent stress is 199,04 Pa. Whereas in the landing condition, the total deformation is  mm and the equivalent stress is 38,812 Pa.