semi-suberged propeller

简明释义

半浸水螺旋桨

英英释义

例句

1.Using a semi-submerged propeller can significantly enhance the speed of the vessel.

使用半沉浸式螺旋桨可以显著提高船只的速度。

2.The design of the boat included a semi-submerged propeller that improves efficiency in shallow waters.

这艘船的设计包括一个半沉浸式螺旋桨，在浅水中提高了效率。

3.Engineers are testing a new semi-submerged propeller system to reduce cavitation noise.

工程师们正在测试一种新的半沉浸式螺旋桨系统，以减少气蚀噪音。

4.The research focused on the hydrodynamic properties of the semi-submerged propeller.

研究集中在半沉浸式螺旋桨的流体动力学特性上。

5.The semi-submerged propeller allows for better maneuverability in tight spaces.

这个半沉浸式螺旋桨在狭小空间内提供了更好的机动性。

作文

In the world of marine engineering, the design and functionality of propellers play a crucial role in the performance of vessels. One innovative concept that has gained attention is the semi-submerged propeller, which refers to a propeller that operates partially underwater, allowing it to achieve greater efficiency and reduced cavitation effects. This design is particularly advantageous for high-speed vessels, where traditional propellers may struggle to maintain optimal performance. The semi-submerged propeller is typically mounted on the hull of a ship in such a way that only a portion of it is submerged in water while the rest remains above the surface. This unique positioning enables the propeller to generate thrust more effectively, as it can take advantage of both the water flow above and below the surface. By minimizing the exposure of the blades to air, the semi-submerged propeller significantly reduces the likelihood of cavitation, which is the formation of vapor bubbles that can cause damage to the propeller and reduce its efficiency. Moreover, the semi-submerged propeller design can lead to improved fuel efficiency. As the propeller operates in a more stable flow of water, it requires less energy to produce the same amount of thrust compared to traditional fully submerged propellers. This efficiency translates into lower operational costs for shipping companies, making it an attractive option in the competitive maritime industry. Another advantage of the semi-submerged propeller is its ability to enhance maneuverability. Vessels equipped with this type of propeller can respond more quickly to changes in direction, which is particularly beneficial in tight or congested waterways. The reduced drag associated with the semi-submerged propeller also allows ships to accelerate faster, improving their overall performance. However, implementing a semi-submerged propeller system is not without challenges. Engineers must carefully consider the placement and angle of the propeller to ensure optimal performance. Additionally, the hull design may need to be modified to accommodate this type of propeller, which can increase construction costs. Despite these challenges, the benefits of using a semi-submerged propeller often outweigh the drawbacks, leading to its growing popularity in modern vessel design. In conclusion, the semi-submerged propeller represents a significant advancement in marine propulsion technology. By operating partially submerged, this innovative design offers enhanced efficiency, reduced cavitation, improved fuel economy, and better maneuverability. As the maritime industry continues to evolve, the adoption of semi-submerged propellers is likely to increase, paving the way for more efficient and environmentally friendly shipping practices. The future of marine engineering is undoubtedly bright, with the semi-submerged propeller at the forefront of this exciting evolution.

在海洋工程的世界里，螺旋桨的设计和功能在船舶性能中起着至关重要的作用。一个引起关注的创新概念是半浸式螺旋桨，它指的是一种部分浸入水中的螺旋桨，能够实现更高的效率和减少气蚀效应。这种设计对于高速船舶尤其有利，因为传统螺旋桨可能难以维持最佳性能。半浸式螺旋桨通常安装在船体上，使得只有一部分浸入水中，而其余部分则保持在水面以上。这种独特的位置使得螺旋桨能够更有效地产生推力，因为它可以同时利用水面上和水面下的水流。通过最小化叶片暴露在空气中的面积，半浸式螺旋桨显著减少了气蚀的可能性，气蚀是指形成蒸汽气泡的现象，这会导致螺旋桨受损并降低其效率。 此外，半浸式螺旋桨设计可以提高燃油效率。当螺旋桨在更稳定的水流中工作时，与传统完全浸没的螺旋桨相比，它需要更少的能量来产生相同数量的推力。这种效率转化为航运公司的较低运营成本，使其在竞争激烈的海运行业中成为一个吸引人的选择。 半浸式螺旋桨的另一个优点是增强了机动性。配备这种类型螺旋桨的船舶可以更快速地响应方向变化，这在狭窄或拥挤的水道中特别有益。与半浸式螺旋桨相关的阻力减少也使船舶加速更快，从而提高其整体性能。 然而，实施半浸式螺旋桨系统并非没有挑战。工程师必须仔细考虑螺旋桨的放置和角度，以确保最佳性能。此外，船体设计可能需要进行修改以适应这种类型的螺旋桨，这可能增加建造成本。尽管存在这些挑战，使用半浸式螺旋桨的好处往往超过了缺点，导致其在现代船舶设计中的日益普及。 总之，半浸式螺旋桨代表了海洋推进技术的一项重大进步。通过部分浸入水中，这种创新设计提供了更高的效率、减少的气蚀、改善的燃油经济性和更好的机动性。随着海运行业的不断发展，采用半浸式螺旋桨的趋势可能会增加，为更高效和环保的航运实践铺平道路。海洋工程的未来无疑是光明的，半浸式螺旋桨将在这一激动人心的演变中处于前沿。