contra-turning propeller

简明释义

同心套轴的两个对转螺旋桨

英英释义

例句

1.Many modern yachts utilize a contra-turning propeller system for better control during docking.

许多现代游艇采用反转螺旋桨系统，以便在靠泊时更好地控制。

2.The contra-turning propeller design helps in reducing cavitation effects at higher speeds.

这种反转螺旋桨设计有助于减少高速时的气蚀现象。

3.The engineer explained how the contra-turning propeller creates opposing forces that stabilize the ship.

工程师解释了反转螺旋桨如何产生相对的力量来稳定船只。

4.Using a contra-turning propeller can reduce the overall drag on the vessel, making it more fuel-efficient.

使用反转螺旋桨可以减少船只的整体阻力，从而提高燃油效率。

5.The ship was equipped with a contra-turning propeller to enhance its maneuverability in tight spaces.

这艘船配备了一个反转螺旋桨，以增强其在狭小空间中的机动性。

作文

In the realm of marine engineering, the concept of a contra-turning propeller is pivotal for enhancing the efficiency and maneuverability of vessels. A contra-turning propeller refers to a type of propulsion system where two propellers are mounted on the same shaft, rotating in opposite directions. This innovative design not only improves thrust but also reduces the torque effect that can cause a vessel to spin uncontrollably. The significance of contra-turning propellers can be observed in various applications, from small recreational boats to large cargo ships.One of the primary advantages of using a contra-turning propeller system is its ability to increase the overall efficiency of a vessel. Traditional single propeller systems often suffer from cavitation, a phenomenon that occurs when the pressure on the blades drops below the vapor pressure of the water, leading to the formation of bubbles. These bubbles collapse violently, causing damage to the propeller and reducing efficiency. However, with a contra-turning propeller, the opposing rotation of the blades helps to mitigate this issue, allowing for smoother operation and enhanced performance.Moreover, the contra-turning propeller configuration provides superior maneuverability. When a vessel needs to turn, the opposing forces generated by the two propellers allow for quicker response times and tighter turning radii. This is particularly beneficial in crowded or narrow waterways, where precision is essential. For instance, tugboats, which often assist larger ships in docking and undocking maneuvers, frequently utilize contra-turning propellers to navigate with agility and control.The application of contra-turning propellers extends beyond just commercial shipping; they are also found in military vessels, where stealth and agility are critical. In naval operations, the ability to change direction swiftly without losing speed can be a decisive factor in strategic maneuvers. This capability is largely attributed to the advanced design of contra-turning propellers, which enables these vessels to maintain a low profile while executing complex movements.In addition to their practical benefits, contra-turning propellers also contribute to the overall sustainability of maritime operations. As the world increasingly focuses on reducing carbon emissions and improving fuel efficiency, the adoption of technologies such as contra-turning propellers can play a significant role. By optimizing propulsion and reducing energy waste, these systems help to lower the environmental impact of shipping activities.In conclusion, the contra-turning propeller represents a significant advancement in marine propulsion technology. Its unique design offers numerous advantages, including increased efficiency, improved maneuverability, and enhanced sustainability. As the maritime industry continues to evolve, the importance of innovative solutions like the contra-turning propeller will undoubtedly grow, paving the way for safer and more efficient navigation on our oceans and waterways.

在海洋工程领域，反向旋转螺旋桨的概念对于提高船只的效率和机动性至关重要。反向旋转螺旋桨指的是一种推进系统，其中两个螺旋桨安装在同一轴上，以相反方向旋转。这种创新设计不仅提高了推力，还减少了可能导致船只失控旋转的扭矩效应。反向旋转螺旋桨的重要性可以在各种应用中观察到，从小型休闲船到大型货船。使用反向旋转螺旋桨系统的主要优点之一是其提高船只整体效率的能力。传统的单螺旋桨系统通常会遭受气蚀现象，即当叶片上的压力降至水的蒸汽压力以下时，导致气泡的形成。这些气泡会剧烈崩溃，造成对螺旋桨的损害并降低效率。然而，使用反向旋转螺旋桨时，两个螺旋桨的相反旋转有助于减轻这一问题，从而实现更平稳的操作和增强的性能。此外，反向旋转螺旋桨配置提供了卓越的机动性。当船只需要转弯时，由两个螺旋桨产生的相反力量能够实现更快的响应时间和更紧凑的转弯半径。这在拥挤或狭窄的水道中特别有利，因为精确度至关重要。例如，拖船通常协助较大船只在靠泊和离泊过程中进行机动，常常利用反向旋转螺旋桨来实现灵活和控制。反向旋转螺旋桨的应用不仅限于商业航运；它们也出现在军舰中，在那里隐蔽性和灵活性至关重要。在海军行动中，迅速改变方向而不失去速度的能力可能是战略机动中的决定性因素。这一能力在很大程度上归功于反向旋转螺旋桨的先进设计，使这些船只能够在执行复杂动作时保持低调。除了实际好处外，反向旋转螺旋桨还为海洋运营的整体可持续性做出了贡献。随着世界越来越关注减少碳排放和提高燃料效率，采用反向旋转螺旋桨等技术可以发挥重要作用。通过优化推进和减少能源浪费，这些系统有助于降低航运活动对环境的影响。总之，反向旋转螺旋桨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优势，包括提高效率、改善机动性和增强可持续性。随着海事行业的不断发展，像反向旋转螺旋桨这样的创新解决方案的重要性无疑将会增加，为我们在海洋和水道上的安全和高效航行铺平道路。