varying pitch propeller

简明释义

变螺距螺旋桨

英英释义

例句

1.Using a varying pitch propeller allows the aircraft to optimize its performance during different phases of flight.

使用可变螺距螺旋桨可以让飞机在不同飞行阶段优化其性能。

2.In rough seas, the captain adjusted the varying pitch propeller to maintain stability and speed.

在恶劣海况下，船长调整了可变螺距螺旋桨以保持稳定和速度。

3.The ship was equipped with a varying pitch propeller to enhance its maneuverability in tight harbors.

这艘船配备了一个可变螺距螺旋桨，以提高其在狭窄港口的机动性。

4.The yacht's varying pitch propeller allowed for quick acceleration when racing against competitors.

这艘游艇的可变螺距螺旋桨在与竞争对手比赛时提供了快速加速的能力。

5.The varying pitch propeller significantly reduces fuel consumption compared to fixed-pitch designs.

与固定螺距设计相比，可变螺距螺旋桨显著降低了燃油消耗。

作文

The world of marine engineering is filled with intricate designs and innovative technologies that enhance the performance and efficiency of vessels. One such innovation is the varying pitch propeller, a crucial component in the propulsion systems of ships and submarines. The concept of a varying pitch propeller refers to a type of propeller whose blade angles can be adjusted while the propeller is in motion, allowing for greater control over thrust and speed. This ability to change the pitch of the blades optimizes the vessel's performance across various operating conditions, making it an essential feature in modern maritime design.In traditional fixed-pitch propellers, the angle of the blades remains constant, which limits their efficiency at different speeds. For instance, a fixed-pitch propeller may perform well at cruising speeds but struggle during acceleration or when maneuvering in tight spaces. In contrast, the varying pitch propeller addresses these limitations by enabling adjustments to the blade angle according to the operational needs. This adaptability not only enhances fuel efficiency but also improves handling and responsiveness.The mechanism behind a varying pitch propeller typically involves hydraulic systems that facilitate the adjustment of the blade angles. When the pilot or captain alters the controls, hydraulic fluid is directed to specific areas of the propeller assembly, causing the blades to rotate around their pitch axis. This process can be executed quickly, allowing for real-time adjustments based on the vessel's speed, load, and environmental conditions.One of the significant advantages of using a varying pitch propeller is its contribution to energy savings. By optimizing the pitch for different phases of operation, vessels can reduce fuel consumption, leading to lower operational costs and reduced environmental impact. This aspect is especially important in today's world, where sustainability and efficiency are paramount concerns for the shipping industry.Moreover, the versatility of a varying pitch propeller makes it suitable for various types of vessels, from cargo ships to luxury yachts and naval vessels. For example, in naval applications, the ability to change pitch rapidly can be crucial for tactical maneuvers, allowing submarines to adjust their speed and stealth capabilities effectively. Similarly, in commercial shipping, the efficiency gained from using a varying pitch propeller can translate into significant cost savings over time, making it an attractive option for fleet operators.Despite the numerous benefits, the implementation of varying pitch propellers does come with challenges. The complexity of the hydraulic systems requires careful maintenance and monitoring to ensure reliability. Any failure in the system could lead to compromised performance or even hazardous situations at sea. Therefore, thorough training for crew members and regular inspections are essential to mitigate these risks.In conclusion, the varying pitch propeller represents a remarkable advancement in marine propulsion technology. Its ability to adapt to changing operational demands enhances vessel performance, improves fuel efficiency, and contributes to the overall sustainability of maritime operations. As the industry continues to evolve, the importance of innovations like the varying pitch propeller will undoubtedly grow, shaping the future of marine engineering and transportation.

海洋工程的世界充满了复杂的设计和创新技术，这些技术提高了船舶的性能和效率。其中一个创新就是可变螺距螺旋桨，它是船只和潜艇推进系统中的关键组成部分。可变螺距螺旋桨的概念指的是一种在运动中可以调整叶片角度的螺旋桨，允许对推力和速度进行更大的控制。这种改变叶片角度的能力优化了船舶在各种操作条件下的性能，使其成为现代海事设计中的重要特征。在传统的固定螺距螺旋桨中，叶片的角度保持不变，这限制了它们在不同速度下的效率。例如，固定螺距螺旋桨在巡航速度下表现良好，但在加速或在狭窄空间内机动时可能会遇到困难。相比之下，可变螺距螺旋桨通过根据操作需要调整叶片角度来解决这些限制。这种适应性不仅提高了燃油效率，还改善了操控性和响应性。可变螺距螺旋桨背后的机制通常涉及液压系统，这些系统促进叶片角度的调整。当飞行员或船长改变控制时，液压油被引导到螺旋桨组件的特定区域，导致叶片围绕其螺距轴旋转。这个过程可以快速执行，允许根据船舶的速度、负载和环境条件进行实时调整。使用可变螺距螺旋桨的一个显著优势是它对节能的贡献。通过优化不同操作阶段的螺距，船舶可以减少燃料消耗，从而降低运营成本并减少对环境的影响。这一点在当今世界尤为重要，因为可持续性和效率是航运业的首要关注点。此外，可变螺距螺旋桨的多功能性使其适用于各种类型的船舶，从货船到豪华游艇以及军舰。例如，在海军应用中，快速改变螺距的能力对于战术机动至关重要，使潜艇能够有效调整其速度和隐蔽能力。同样，在商业航运中，使用可变螺距螺旋桨所获得的效率可以转化为长期显著的成本节约，使其成为船队运营商的理想选择。尽管有众多好处，实施可变螺距螺旋桨确实也面临挑战。液压系统的复杂性需要仔细维护和监控，以确保可靠性。系统中的任何故障都可能导致性能受损甚至海上危险情况。因此，为船员提供全面培训和定期检查对于减轻这些风险至关重要。总之，可变螺距螺旋桨代表了海洋推进技术的显著进步。其适应变化的操作需求的能力增强了船舶性能，提高了燃油效率，并对海洋运营的整体可持续性做出了贡献。随着行业的不断发展，像可变螺距螺旋桨这样的创新的重要性无疑将增加，塑造海洋工程和运输的未来。