large hub screw propeller

简明释义

大毂螺旋桨

英英释义

例句

1.During the maintenance check, we noticed that the large hub screw propeller had some wear and tear.

在维护检查中，我们注意到大中心螺旋桨有一些磨损。

2.Engineers designed a new large hub screw propeller that improves fuel efficiency for cargo vessels.

工程师们设计了一种新的大中心螺旋桨，提高了货船的燃油效率。

3.The design of the large hub screw propeller minimizes cavitation, increasing overall performance.

这个大中心螺旋桨的设计最小化了气蚀现象，提高了整体性能。

4.The large hub screw propeller allows the yacht to reach higher speeds while maintaining stability.

这个大中心螺旋桨让游艇在保持稳定的同时达到更高的速度。

5.The ship was equipped with a large hub screw propeller to enhance its maneuverability in tight spaces.

这艘船配备了一个大中心螺旋桨以增强其在狭小空间内的机动性。

作文

The design and functionality of marine propulsion systems have evolved significantly over the years. One of the most notable advancements in this field is the development of the large hub screw propeller, which has become a crucial component in modern ships and submarines. This type of propeller is characterized by its large central hub, which not only enhances its strength but also improves its efficiency in converting engine power into thrust. The large hub screw propeller is particularly effective in generating high thrust at lower speeds, making it ideal for various maritime applications.The large hub of the propeller plays a vital role in reducing cavitation, a phenomenon that can cause damage to the propeller blades and reduce overall performance. Cavitation occurs when the pressure of the water around the propeller drops below the vapor pressure, leading to the formation of bubbles. These bubbles can collapse violently, causing pitting and erosion on the propeller surface. By utilizing a large hub screw propeller, engineers can minimize the risk of cavitation, thus prolonging the lifespan of the propeller and maintaining optimal performance.In addition to its structural advantages, the large hub screw propeller offers improved maneuverability for vessels. The design allows for better control during low-speed operations, such as docking or navigating through tight spaces. This is particularly beneficial for larger ships, which often face challenges in terms of handling and steering. The enhanced thrust produced by the large hub screw propeller enables these vessels to respond more effectively to rudder commands, ensuring safer and more efficient navigation.Moreover, the large hub screw propeller contributes to fuel efficiency. As the maritime industry increasingly focuses on sustainability and reducing emissions, the ability of this propeller to operate efficiently at lower speeds aligns with these goals. By optimizing the propulsion system, ship operators can achieve significant fuel savings, reducing operational costs while also minimizing their environmental impact.The application of the large hub screw propeller is not limited to commercial shipping; it is also used in recreational boats and naval vessels. In military operations, the need for stealth and speed is paramount, and the design of the large hub screw propeller helps meet these requirements. Its ability to produce thrust quietly makes it an excellent choice for submarines, where noise reduction is critical for avoiding detection.As technology continues to advance, the design of the large hub screw propeller is likely to undergo further refinements. Innovations in materials and manufacturing processes may lead to even more efficient and durable propellers. Researchers are exploring the use of composite materials and advanced coatings that could enhance performance and resistance to wear and corrosion.In conclusion, the large hub screw propeller represents a significant advancement in marine propulsion technology. Its unique design offers numerous benefits, including reduced cavitation, improved maneuverability, and enhanced fuel efficiency. As the maritime industry moves towards more sustainable practices, the importance of efficient propulsion systems like the large hub screw propeller will only continue to grow. Understanding the mechanics and advantages of this propeller is essential for anyone involved in marine engineering or ship design, as it plays a pivotal role in the evolution of maritime transportation.

海洋推进系统的设计和功能在过去几年中显著发展。其中一个最显著的进展是大型中心轴螺旋桨（large hub screw propeller）的发展，它已成为现代船舶和潜艇的重要组成部分。这种类型的螺旋桨以其大的中心轴而著称，这不仅增强了其强度，还提高了将发动机功率转化为推力的效率。large hub screw propeller在较低速度下产生高推力方面特别有效，非常适合各种海洋应用。螺旋桨的大型中心轴在减少气蚀方面发挥着至关重要的作用，气蚀是一种可能对螺旋桨叶片造成损害并降低整体性能的现象。当水流动在螺旋桨周围的压力降到蒸汽压以下时，就会发生气蚀，从而导致气泡的形成。这些气泡可能会猛烈坍塌，导致螺旋桨表面出现凹坑和侵蚀。通过使用large hub screw propeller，工程师可以最小化气蚀的风险，从而延长螺旋桨的使用寿命并保持最佳性能。除了结构优势外，large hub screw propeller还提供了更好的船舶操控性。该设计在低速操作（例如停靠或在狭窄空间内导航）时允许更好的控制。这对于较大的船舶尤为有利，因为它们在处理和操控方面常常面临挑战。large hub screw propeller产生的增强推力使这些船舶能够更有效地响应舵命令，从而确保更安全、更高效的导航。此外，large hub screw propeller有助于燃料效率。随着海洋行业越来越关注可持续性和减少排放，这种螺旋桨在较低速度下高效运行的能力与这些目标相一致。通过优化推进系统，船舶运营商可以实现显著的燃料节省，降低运营成本，同时也减少对环境的影响。large hub screw propeller的应用不仅限于商业航运；它还用于休闲船只和军舰。在军事行动中，隐蔽性和速度至关重要，而large hub screw propeller的设计有助于满足这些要求。其安静产生推力的能力使其成为潜艇的绝佳选择，在潜艇中，噪音降低对避免被发现至关重要。随着技术的不断进步，large hub screw propeller的设计可能会进一步完善。材料和制造工艺的创新可能会导致更高效和耐用的螺旋桨。研究人员正在探索复合材料和先进涂层的使用，这可能会增强性能和抗磨损、抗腐蚀能力。总之，large hub screw propeller代表了海洋推进技术的重要进步。其独特的设计提供了诸多好处，包括减少气蚀、改善操控性和增强燃料效率。随着海洋行业朝着更可持续的实践发展，像large hub screw propeller这样的高效推进系统的重要性只会继续增长。理解这种螺旋桨的机制和优势对于任何参与海洋工程或船舶设计的人来说都是至关重要的，因为它在海洋运输的发展中发挥着关键作用。