conventional propeller

简明释义

常规推进器

英英释义

例句

1.The design of the conventional propeller has remained largely unchanged for decades.

该常规螺旋桨的设计在几十年里基本没有变化。

2.The boat's speed improved significantly after installing a new conventional propeller.

在安装了新的常规螺旋桨后，船的速度显著提升。

3.Many small airplanes are equipped with a conventional propeller to achieve efficient flight.

许多小型飞机配备有常规螺旋桨以实现高效飞行。

4.The aircraft uses a conventional propeller for its propulsion system.

该飞机使用常规螺旋桨作为其推进系统。

5.Pilots prefer conventional propellers for their reliability and ease of maintenance.

飞行员更喜欢常规螺旋桨，因为它们可靠且易于维护。

作文

In the world of aviation and marine engineering, the term conventional propeller refers to the traditional type of propulsion system that has been used for many years. A conventional propeller typically consists of blades that rotate around a central hub, generating thrust by pushing against the surrounding fluid, whether it be air or water. This design has proven effective for various applications, including airplanes, boats, and submarines. The basic principle behind a conventional propeller is relatively simple. When the blades rotate, they create a difference in pressure between the front and back surfaces, which results in forward motion. The efficiency of a conventional propeller can be influenced by several factors, including the shape and angle of the blades, the speed of rotation, and the medium through which it operates. One of the advantages of using a conventional propeller is its reliability. These propellers have a long history of successful use, and their design is well understood by engineers and manufacturers. Additionally, they are relatively easy to maintain and repair, which is crucial for operators who rely on them for transportation or other purposes. However, there are some limitations to the conventional propeller. For instance, in aviation, as speeds increase, the efficiency of a conventional propeller can decrease due to increased drag and the onset of compressibility effects. This has led to the development of alternative propulsion systems, such as turbojets and turbofans, which can operate more efficiently at higher speeds. In marine applications, the conventional propeller can also face challenges, particularly in terms of cavitation, where vapor bubbles form and collapse around the blades, leading to a loss of efficiency and potential damage. To address these issues, engineers have explored various designs and materials to enhance the performance of conventional propellers, including changes in blade geometry and the use of composite materials. Despite these challenges, the conventional propeller remains a popular choice for many vessels and aircraft, especially those designed for lower speeds or specific applications. Its simplicity and effectiveness make it an enduring technology in the field of propulsion. As new technologies emerge, the conventional propeller may continue to evolve, incorporating advancements that improve its performance and adaptability. In conclusion, the conventional propeller is a fundamental component of propulsion systems in both aviation and marine contexts. While it has its limitations, its reliability and ease of use ensure that it will remain a vital part of transportation technology for the foreseeable future. Understanding how a conventional propeller works and its role in different applications is essential for anyone interested in engineering, transportation, or aerodynamics.

在航空和海洋工程的世界里，术语常规螺旋桨指的是一种传统的推进系统，这种系统已经使用了许多年。常规螺旋桨通常由围绕中心轴旋转的叶片组成，通过推动周围的流体（无论是空气还是水）来产生推力。这种设计在各种应用中被证明是有效的，包括飞机、船只和潜艇。常规螺旋桨背后的基本原理相对简单。当叶片旋转时，它们在前后表面之间产生压力差，从而导致向前运动。常规螺旋桨的效率可以受到多个因素的影响，包括叶片的形状和角度、旋转速度以及它所操作的介质。使用常规螺旋桨的一个优点是其可靠性。这些螺旋桨有着成功使用的悠久历史，工程师和制造商对其设计有很好的理解。此外，它们相对容易维护和修理，这对于依赖它们进行运输或其他目的的操作人员至关重要。然而，常规螺旋桨也存在一些局限性。例如，在航空领域，随着速度的增加，常规螺旋桨的效率可能会因阻力增加和压缩效应的出现而降低。这导致开发替代推进系统，例如涡轮喷气发动机和涡轮风扇，这些系统在更高速度下运行更有效。在海洋应用中，常规螺旋桨也可能面临挑战，特别是在气蚀方面，即蒸汽气泡在叶片周围形成并崩溃，导致效率损失和潜在损坏。为了解决这些问题，工程师们探索了各种设计和材料，以增强常规螺旋桨的性能，包括改变叶片几何形状和使用复合材料。尽管存在这些挑战，常规螺旋桨仍然是许多船只和飞机的热门选择，尤其是那些设计用于较低速度或特定应用的船只。其简单性和有效性使其成为推进技术中的一种持久技术。随着新技术的出现，常规螺旋桨可能会继续发展，结合改进其性能和适应性的先进技术。总之，常规螺旋桨是航空和海洋环境中推进系统的基本组成部分。尽管它有其局限性，但其可靠性和易用性确保了它在可预见的未来将继续成为运输技术的重要组成部分。理解常规螺旋桨的工作原理及其在不同应用中的作用，对于任何对工程、运输或空气动力学感兴趣的人来说都是至关重要的。