fixed blade propeller

简明释义

固定桨叶螺旋桨

英英释义

例句

1.Many fishing boats utilize a fixed blade propeller for better fuel efficiency.

许多渔船使用固定螺旋桨以提高燃油效率。

2.The design of the fixed blade propeller allows for smoother operation at high speeds.

这个固定螺旋桨的设计使得在高速下运行更加平稳。

3.For larger vessels, a fixed blade propeller is often preferred due to its durability.

对于较大的船只，通常更喜欢使用固定螺旋桨，因为它更耐用。

4.The boat's speed increased significantly after we replaced the old engine with a new one featuring a fixed blade propeller.

在我们用一个新引擎替换旧引擎后，船的速度显著提高，这个新引擎配备了一个固定螺旋桨。

5.In calm waters, a fixed blade propeller performs exceptionally well.

在平静的水域中，固定螺旋桨表现得非常出色。

作文

In the world of marine engineering and aviation, the choice of propeller can significantly impact performance and efficiency. One such type of propeller is the fixed blade propeller, which has been widely used in various applications due to its simplicity and reliability. A fixed blade propeller (固定叶片螺旋桨) is designed with blades that are set at a specific angle and cannot be adjusted during operation. This characteristic makes it distinct from variable pitch propellers, which allow for blade angle adjustments to optimize performance under different conditions.The design of a fixed blade propeller is straightforward, consisting of a hub and several blades attached to it. The blades are usually made from durable materials such as aluminum or composite materials, ensuring they withstand the stresses of operation. The fixed angle of the blades means that once the propeller is manufactured, it is ready to use without any need for adjustments, making it a popular choice for smaller boats, outboard motors, and certain types of aircraft.One significant advantage of a fixed blade propeller is its cost-effectiveness. Since the design is simpler and requires fewer moving parts compared to adjustable systems, the manufacturing costs are lower. This affordability makes it accessible for recreational boaters and small aircraft operators who may not require the advanced features of variable pitch systems. Additionally, the maintenance of a fixed blade propeller is relatively easy, as there are no complex mechanisms to worry about.However, while the simplicity and cost-effectiveness of a fixed blade propeller are appealing, it does come with limitations. The fixed angle of the blades means that the propeller may not perform optimally across varying speeds and loads. For instance, a boat equipped with a fixed blade propeller may experience reduced efficiency when operating at high speeds compared to a vessel with a variable pitch propeller that can adjust to the optimal angle for each condition.Moreover, the performance of a fixed blade propeller can be influenced by factors such as water conditions, load weight, and speed. In scenarios where rapid changes in speed are common, the inability to adjust the blade angle can lead to suboptimal performance. This is particularly relevant in competitive environments where every bit of efficiency matters.Despite these drawbacks, the fixed blade propeller remains a reliable choice for many users. Its robustness and ease of use make it ideal for applications where performance demands are not extreme. For example, fishing boats, leisure crafts, and some commercial vessels often utilize fixed blade propellers because they provide adequate thrust and maneuverability without the complexity of more advanced systems.In conclusion, understanding the characteristics and applications of a fixed blade propeller is essential for anyone involved in marine or aviation fields. While it may not offer the same level of performance adaptability as variable pitch propellers, its simplicity, affordability, and reliability make it a valuable option for many users. As technology continues to advance, the role of fixed blade propellers will likely evolve, but their fundamental advantages will always ensure their presence in the industry.

在海洋工程和航空领域，螺旋桨的选择对性能和效率有着显著影响。其中一种广泛应用的螺旋桨是固定叶片螺旋桨，由于其简单性和可靠性而被广泛使用。固定叶片螺旋桨（fixed blade propeller）设计为叶片以特定角度固定，无法在操作过程中调整。这一特性使其与可变螺距螺旋桨区分开来，后者允许在不同条件下调整叶片角度以优化性能。固定叶片螺旋桨的设计简单，由一个中心轴和多个附加在其上的叶片组成。叶片通常由铝或复合材料等耐用材料制成，以确保它们能够承受操作中的压力。叶片的固定角度意味着一旦制造完成，螺旋桨就可以直接使用，无需进行任何调整，这使其成为小型船只、舷外马达和某些类型飞机的热门选择。固定叶片螺旋桨的一个显著优势是其经济性。由于设计更简单且运动部件较少，制造成本较低。这种可负担性使其对休闲船员和小型飞机运营商更具吸引力，因为他们可能并不需要可变螺距系统的高级功能。此外，固定叶片螺旋桨的维护相对简单，因为没有复杂的机制需要担心。然而，尽管固定叶片螺旋桨的简单性和经济性令人青睐，但它也有局限性。叶片的固定角度意味着在不同速度和负载下，螺旋桨的性能可能无法达到最佳。例如，配备固定叶片螺旋桨的船只在高速度下运行时，可能会比配备可变螺距螺旋桨的船只效率降低，因为后者可以根据每种情况调整到最佳角度。此外，固定叶片螺旋桨的性能还受到水域条件、负载重量和速度等因素的影响。在快速变化速度的情况下，无法调整叶片角度可能导致性能不佳。这在竞争环境中尤为相关，因为每一点效率都至关重要。尽管存在这些缺点，固定叶片螺旋桨仍然是许多用户可靠的选择。其坚固性和易用性使其非常适合对性能要求不高的应用。例如，渔船、休闲船只和一些商用船只通常使用固定叶片螺旋桨，因为它们提供足够的推力和机动性，而无需更复杂的系统。总之，理解固定叶片螺旋桨的特性和应用对于任何参与海洋或航空领域的人来说都是至关重要的。尽管它可能无法像可变螺距螺旋桨那样提供相同水平的性能适应性，但其简单性、经济性和可靠性使其成为许多用户的宝贵选择。随着技术的不断进步，固定叶片螺旋桨的作用可能会不断演变，但其基本优势将始终确保它们在行业中的存在。