Journal bearings are prevalent engineering components in almost all types of rotating machinery. Shaft misalignment is one of the most common defects observed in rotating systems and has a substantial effect on dynamic behavior, stability and lifetime. Aim of this study is the binary identification of misalignment using a variety of Machine Learning techniques. Nevertheless, the limited...
The railway transportation system is currently undergoing a significant expansion. As a result, train lines are upgraded, and the technical condition of the rail vehicles that use them is also taken into consideration. However, under certain circumstances, wheels on rail vehicles may sustain damage while in use. The passenger's ride comfort is diminished when a rail vehicle with a damaged...
Wooden fences are nature-based supporting structures to restore mangroves in the Mekong Delta. While prior studies have explored several hydraulic functions of these fences, an in-depth investigation into the influence of fence width on wave dissipation and damping is still lacking. Consequently, this paper employs a numerical approach to thoroughly examine the impact of fence width on wave...
Stiffened panels are widely used in offshore and maritime sectors where buckling is a common cause of failure. The DNV RP-C201 and NS-EN 1993-1-5 guidelines are commonly used to calculate buckling capacities of these panels analytically, while non-linear finite element method can also be used with guidelines outlined in DNV-RP-C208. However, studies related to validation/calibration of the...
Centrifugal pumps are widely used to move liquids from one place to another at varying pressure and flow rate, and to an elevated height for irrigation, water supply plants, and steam power plants. The load variations often lead to unpredictable performance of the impeller. The objective of this study is to investigate the performance of a three-stage centrifugal water pump impeller under...
The cost of vessel operations poses a significant challenge for fishermen in Indonesia, with 60% - 70% of their operational expenses being allocated to fuel. To address this issue and decrease fuel consumption in fishing vessels, one possible solution is to construct lighter boat designs. Through careful optimization of the construction process and the selection of suitable materials, it...
This paper presents the theoretical foundation for reusing steel from decommissioned offshore structures in onshore construction projects as a green alternative to new production steel. This would open up a new source of materials in the supply chain of steel components and contribute to a reduction in the demand of new production steel. Although the conditions and circumstances are different,...
Guardrails are highly recommended to be constructed in the median and side corner of a highway road to secure vehicle which accidentally loss it track, supports the safety of the vehicle driver and passenger from catastrophic accidents. The design and constructions of different guardrails are done to confirm standard to retain their performance that related to energy absorption capacity....
