Systems driven intelligent decision support methods for ship collision and grounding prevention: Present status, possible solutions, and challenges

Reliability Engineering & System Safety, Год журнала: 2024, Номер unknown, С. 110489 - 110489

Опубликована: Сен. 1, 2024

Язык: Английский

---

Drift test analysis of a conventional planing hull utilising CFD and 2D+t models

Ocean Engineering, Год журнала: 2024, Номер 308, С. 118226 - 118226

Опубликована: Май 27, 2024

This paper investigates the maneuvering characteristics of a planing hull free to move in heave and pitch directions undergoing steady drift test. Results assess compare predictions from Computational Fluid Dynamics (CFD) Detached Eddy Simulation (DES) 2D + t strip theory models against available experimental data Katayama et al. (2005). At high yaw angles Froude numbers both marginally deviate longitudinal force measurements. Whereas confronts difficulties predicting dynamic trim angle CG rise-up when either number or increases hence nonlinear hydrodynamics prevail, CFD generally agrees well with data. The model is seen result numerical ventilation zero-drift cases, leading lower pressure localized reduction skin friction coefficient. These phenomena are hypothesized contribute under-prediction scenarios. Strip provides less reliable results terms sway forces at larger angles, moment low associated maximum pressures near stagnation line. cannot capture asymmetric distribution that emerges on bottom large speed which likely be one reasons for errors side force. Simulations demonstrate strong vorticity field formation exposed nonzero angle. means added masses used can cause equilibrium predictions.

Язык: Английский

---

Safety Improvements for High-Speed Planing Craft Occupants: A Systematic Review

Journal of Marine Science and Engineering, Год журнала: 2024, Номер 12(5), С. 845 - 845

Опубликована: Май 19, 2024

Moving fast by high-speed planing craft (HSPC) is advantageous for some special missions, though it causes severe hull vibrations and shocks that can transfer to the human body increase health comfort risks. This study reviews current safety standards avoid risks affected whole-body (WBVs), as well status of HSPC occupants. In addition, efficiency motion-reduction devices (trim tab interceptor) shock/vibration-mitigation (shock-mitigation seat) in improving occupants examined according existing documents. The research methodology was based on Preferred Reporting Items Systematic Reviews Meta-Analyses (PRIS-MA) method, published papers Scholar, Scopus, Web Science databases were analyzed. Because most these publications are academic research, issues bias eligible not particular interest. During this systematic review, many gaps challenges information improvement found need be addressed future studies, such a lack shock-mitigation seat performance reducing lateral fore-and-aft motions. Referring valuable suggestion improve knowledge reduce

Язык: Английский

---

Physical analysis methods for planing hull turning circles

Ocean Engineering, Год журнала: 2025, Номер 321, С. 120348 - 120348

Опубликована: Янв. 20, 2025

Язык: Английский

---

Investigation on the Results Scalability of Towing Tank Tests Performed on a Planing Air Cavity Ship

Lecture notes in mechanical engineering, Год журнала: 2025, Номер unknown, С. 378 - 386

Опубликована: Янв. 1, 2025

Язык: Английский

---

Numerical Analysis and Geometric Assessment of Air Layer Distribution in a Ventilated Planing Hull in Calm Water

Journal of Marine Science and Application, Год журнала: 2025, Номер unknown

Опубликована: Фев. 26, 2025

Язык: Английский

---

Computational Analysis on the Hydrodynamics of a Semisubmersible Naval Ship

Journal of Marine Science and Application, Год журнала: 2025, Номер unknown

Опубликована: Март 26, 2025

Язык: Английский

---

Seakeeping analysis of an amphibious vessel using CFD-modified potential (CMP) simulation and experimental validation

Ocean Engineering, Год журнала: 2025, Номер 328, С. 121045 - 121045

Опубликована: Апрель 3, 2025

Язык: Английский

---

Verification and validation of hard-chine hull performance in calm water: Effects of numerical setups and hull configurations

Ocean Engineering, Год журнала: 2025, Номер 329, С. 121056 - 121056

Опубликована: Апрель 11, 2025

Язык: Английский

---

Technological developments of amphibious aircraft designs: Research milestone and current achievement

Curved and Layered Structures, Год журнала: 2025, Номер 12(1)

Опубликована: Янв. 1, 2025

Abstract This study aims to examine the development of research on seaplanes and determine innovations that have been achieved or researched. To better serve demands real aircraft designers, this presented a new process for creating seaplane designs. Combining historical data with current ship design resulted in preliminary concept design. Another benefit approach is transforming an existing landplane into by adding floating device satisfies conversion standards. Enhancing hydrodynamic performance was addition trimaran A retractable float employed add drag reduction during flying. The idea provided superior hydrostatic stability increased water speed, while floats’ decreased aerodynamic improved flying performance. computational framework also created assess efficacy hydrofoils amphibious aircraft, particular emphasis take-off For validation, comparison made between numerical simulations experiment results. results show over past decade has produced several innovations, from general detailed Seaplane potential be developed coming years.

Язык: Английский

---