Simulation and analysis of ship rudder blade force based on finite element method DOI

Zhaoqiang Li,

Haijun Yang,

Lingling Wang

и другие.

Опубликована: Апрель 1, 2024

To analyze the force situation of ship rudder blades in water, a simulation model certain blade was established using software, and boundary conditions were set calculated. The results show that fluid velocity, pressure, stress distribution around vary under different operating angles. On upstream side blade, velocity is small pressure high, while on downstream side, moderate. lowest point about 7.6m forward along arc length from tail. When steering angle greater than 15°, drops to negative pressure. Therefore, it necessary minimize as much possible. Further analysis reveals maximum occurs at junction support seat shaft, increases, shows trend first increasing then decreasing.

Язык: Английский

A comprehensive analysis of a numerical self-propulsion procedure for high-speed marine vehicles DOI Creative Commons
Diego Villa, Giorgio Tani, Stefano Gaggero

и другие.

Ocean Engineering, Год журнала: 2023, Номер 287, С. 115766 - 115766

Опубликована: Сен. 11, 2023

In the context of numerical self-propulsion predictions, literature on high-speed marine vehicles (HSMV) is still relatively scarce. Actually, extensive analyses are rarely considered for these applications because not-so-stringent design constraints and contract requirements concerning crafts also thanks to advantages series production. On contrary, with growth market requests, in particular, direction Greenhouse Gas Reduction, exact knowledge vessel working point, terms speed engine configuration, pushes researchers investigate all factors which deeply define propulsion condition. present paper, two existing vessels have been numerically studied using a robust industrially affordable procedure based some simplified viscous Computational Fluid Dynamic approaches predict points. The obtained results then compared available sea trials showing very high agreement even if uncertainties both experimental measurements CFD exist. impact has further investigated assess reliability prediction, that maximum can be an uncertainty about 1 knot 10% corresponding load. A more prediction by including assessment analyses. validity proposed supported falls inside from full-scale measurements, so defining point purposes.

Язык: Английский

Процитировано

1

Simulation and analysis of ship rudder blade force based on finite element method DOI

Zhaoqiang Li,

Haijun Yang,

Lingling Wang

и другие.

Опубликована: Апрель 1, 2024

To analyze the force situation of ship rudder blades in water, a simulation model certain blade was established using software, and boundary conditions were set calculated. The results show that fluid velocity, pressure, stress distribution around vary under different operating angles. On upstream side blade, velocity is small pressure high, while on downstream side, moderate. lowest point about 7.6m forward along arc length from tail. When steering angle greater than 15°, drops to negative pressure. Therefore, it necessary minimize as much possible. Further analysis reveals maximum occurs at junction support seat shaft, increases, shows trend first increasing then decreasing.

Язык: Английский

Процитировано

0