marine screw propeller

简明释义

船用螺旋桨

英英释义

例句

1.Engineers are constantly researching new designs for the marine screw propeller to improve fuel efficiency.

工程师们不断研究新的船用螺旋桨设计，以提高燃油效率。

2.The marine screw propeller plays a crucial role in maneuverability for large ships.

对于大型船舶来说，船用螺旋桨在操控性方面起着至关重要的作用。

3.Maintenance of the marine screw propeller is essential to ensure optimal performance.

维护船用螺旋桨对确保最佳性能至关重要。

4.The efficiency of a vessel's speed is largely determined by its marine screw propeller.

船只的速度效率在很大程度上取决于其船用螺旋桨。

5.A damaged marine screw propeller can lead to reduced speed and increased fuel consumption.

损坏的船用螺旋桨可能导致速度降低和燃油消耗增加。

作文

The development of the marine screw propeller has significantly transformed maritime transportation and naval engineering. A marine screw propeller (船用螺旋桨) is a type of propulsion device that converts rotational motion into thrust, allowing ships and boats to move through water effectively. This technology has evolved over centuries, starting from simple paddles and oars to the sophisticated designs we see today. The basic principle behind a marine screw propeller is relatively straightforward: as the blades rotate, they create a difference in pressure on either side of the blade, pushing water backward and propelling the vessel forward.The design of a marine screw propeller is crucial for its efficiency and performance. Engineers must consider several factors, including the number of blades, blade shape, and pitch angle. A typical marine screw propeller consists of multiple blades arranged around a central hub. The most common configurations are three or four blades, but some high-performance vessels may use more. Each blade's shape is designed to minimize drag while maximizing thrust, ensuring that the vessel can travel at higher speeds with less fuel consumption.One of the significant advantages of the marine screw propeller is its ability to operate efficiently across various speeds. Unlike other propulsion systems, such as paddle wheels or water jets, the marine screw propeller maintains its effectiveness whether the vessel is moving slowly or at high speed. This versatility makes it an ideal choice for a wide range of applications, from commercial shipping to recreational boating.Another essential aspect of marine screw propellers is their adaptability to different marine environments. They can be designed to work in shallow waters, deep seas, or even icy conditions, making them suitable for various types of vessels, including cargo ships, fishing boats, and icebreakers. The materials used in manufacturing marine screw propellers also play a vital role in their performance and durability. Most modern propellers are made from corrosion-resistant alloys or composites, which help to extend their lifespan and maintain efficiency.In recent years, advancements in technology have led to the development of more innovative marine screw propellers. Computational fluid dynamics (CFD) simulations allow engineers to analyze and optimize propeller designs before physical prototypes are built. This process helps to identify the most efficient shapes and configurations, resulting in better fuel economy and reduced emissions for vessels.Furthermore, the integration of electric propulsion systems with marine screw propellers is paving the way for greener maritime transportation. As the world increasingly focuses on reducing carbon footprints, hybrid and fully electric vessels are becoming more popular. These new systems often utilize marine screw propellers to provide thrust while minimizing environmental impact.In conclusion, the marine screw propeller is a vital component of modern maritime engineering. Its efficient design, adaptability, and ongoing technological advancements ensure that it remains a preferred choice for propulsion in various marine applications. As the industry continues to innovate, we can expect to see even more improvements in marine screw propeller technology, contributing to safer, faster, and more environmentally friendly maritime transportation.

船用螺旋桨的发展显著改变了海运和海军工程。船用螺旋桨是一种推进装置，将旋转运动转化为推力，使船只和小艇能够有效地在水中移动。这项技术经历了几个世纪的发展，从简单的桨和橹发展到今天我们看到的复杂设计。船用螺旋桨的基本原理相对简单：当桨叶旋转时，它们在桨叶的两侧产生压力差，推动水向后，从而推动船只向前。船用螺旋桨的设计对于其效率和性能至关重要。工程师必须考虑多个因素，包括桨叶数量、桨叶形状和螺距角。典型的船用螺旋桨由多个桨叶围绕中心轴组成。最常见的配置是三叶或四叶，但一些高性能船只可能使用更多的桨叶。每个桨叶的形状旨在最小化阻力，同时最大化推力，确保船只以更少的燃料消耗以更高的速度行驶。船用螺旋桨的一个显著优势是它能够在各种速度下高效运行。与其他推进系统（如轮桨或水喷射）不同，船用螺旋桨在船只慢速或高速行驶时都能保持有效性。这种多功能性使其成为从商业航运到休闲航行等各种应用的理想选择。船用螺旋桨的另一个重要方面是其适应不同海洋环境的能力。它们可以被设计用于浅水、深海甚至冰冷条件，使其适合各种类型的船只，包括货船、渔船和破冰船。制造船用螺旋桨所使用的材料也在其性能和耐久性中发挥着至关重要的作用。大多数现代螺旋桨由耐腐蚀合金或复合材料制成，这有助于延长其使用寿命并保持效率。近年来，技术的进步导致了更创新的船用螺旋桨的发展。计算流体动力学（CFD）模拟使工程师能够在制造物理原型之前分析和优化螺旋桨设计。这个过程有助于识别最有效的形状和配置，从而提高船只的燃油经济性和减少排放。此外，电力推进系统与船用螺旋桨的结合正在为更环保的海洋运输铺平道路。随着世界日益关注减少碳足迹，混合动力和全电动船只变得越来越受欢迎。这些新系统通常利用船用螺旋桨提供推力，同时最小化对环境的影响。总之，船用螺旋桨是现代海洋工程的重要组成部分。其高效的设计、适应性和持续的技术进步确保了它在各种海洋应用中的首选地位。随着行业的不断创新，我们可以期待看到船用螺旋桨技术的进一步改进，为更安全、更快速和更环保的海洋运输做出贡献。