contrarotating rotors

简明释义

对转螺桨

英英释义

例句

1.The efficiency of the aircraft was significantly increased by implementing contrarotating rotors.

通过实施反转旋翼，飞机的效率显著提高。

2.The military helicopter utilizes contrarotating rotors to maintain a low radar profile.

这架军用直升机采用了反转旋翼以保持低雷达特征。

3.In advanced drone technology, contrarotating rotors are used to enhance maneuverability.

在先进的无人机技术中，使用了反转旋翼来增强机动性。

4.Engineers studied the aerodynamic properties of contrarotating rotors for improved performance.

工程师们研究了反转旋翼的空气动力学特性，以提高性能。

5.The helicopter's design features contrarotating rotors, which improve stability and reduce torque effects.

这架直升机的设计采用了反转旋翼，提高了稳定性并减少了扭矩效应。

作文

In the realm of aerospace engineering, various designs and technologies are employed to enhance the performance and efficiency of aircraft. One such innovative design is that of contrarotating rotors (反向旋转转子). This technology has gained significant attention for its ability to improve thrust and reduce drag in rotorcraft, such as helicopters and certain types of drones. Understanding the mechanics and advantages of contrarotating rotors is essential for anyone interested in modern aerodynamics and flight dynamics.The basic principle behind contrarotating rotors involves two rotors that rotate in opposite directions. This configuration helps to counteract the torque that is typically generated by a single rotor system. In traditional helicopters, the main rotor spins in one direction, creating a reactive torque that necessitates the use of a tail rotor to maintain stability and control. However, with contrarotating rotors, the opposing forces cancel each other out, allowing for greater stability and control without the need for a tail rotor.One of the primary advantages of using contrarotating rotors is the increase in overall efficiency. By eliminating the tail rotor, designers can reduce weight and improve the aerodynamic profile of the aircraft. This leads to better fuel efficiency and enhanced performance, especially in vertical takeoff and landing (VTOL) scenarios. Furthermore, contrarotating rotors can generate more lift at lower speeds, which is particularly beneficial for urban air mobility applications where quick ascents and descents are required.Another significant benefit of contrarotating rotors is noise reduction. Traditional helicopters are notorious for their loud tail rotors, which can be disruptive in populated areas. The design of contrarotating rotors allows for a more balanced and quieter operation, making them an attractive option for future urban air transportation systems that prioritize environmental considerations.Despite these advantages, there are challenges associated with contrarotating rotors. For instance, the complexity of the mechanical systems required to synchronize the two rotors can lead to increased maintenance needs and potential points of failure. Engineers must also carefully consider the dynamics of airflow between the rotors to optimize performance and minimize interference.In conclusion, contrarotating rotors (反向旋转转子) represent a significant advancement in rotorcraft design, offering improved efficiency, stability, and reduced noise levels. As the aerospace industry continues to evolve, the implementation of contrarotating rotors may play a crucial role in shaping the future of aviation, particularly in applications focused on urban mobility and sustainable flight solutions. Understanding this technology is vital for engineers and enthusiasts alike, as it embodies the innovative spirit of modern aerospace engineering.

在航空航天工程领域，各种设计和技术被应用于提高飞机的性能和效率。其中一种创新设计是反向旋转转子（contrarotating rotors）。这种技术因其能够改善推力和减少直升机及某些类型无人机的阻力而备受关注。理解反向旋转转子的机制和优势对于任何对现代空气动力学和飞行动力学感兴趣的人来说都是至关重要的。反向旋转转子的基本原理涉及两个旋转方向相反的转子。这种配置有助于抵消通常由单个转子系统产生的扭矩。在传统直升机中，主旋翼朝一个方向旋转，产生反作用扭矩，这就需要使用尾旋翼来维持稳定性和控制。然而，通过使用反向旋转转子，相对的力量相互抵消，从而在不需要尾旋翼的情况下实现更大的稳定性和控制。使用反向旋转转子的主要优势之一是整体效率的提高。通过消除尾旋翼，设计师可以减轻重量并改善飞机的空气动力学轮廓。这导致更好的燃油效率和增强的性能，尤其是在垂直起降（VTOL）场景中。此外，反向旋转转子能够在较低速度下产生更多的升力，这对于城市空中出行应用尤为重要，因为这些应用需要快速的上升和下降。反向旋转转子的另一个显著好处是噪音减少。传统直升机因其嘈杂的尾旋翼而臭名昭著，这在居民区可能造成干扰。反向旋转转子的设计允许更平衡和安静的操作，使其成为未来优先考虑环境因素的城市空中运输系统的一个有吸引力的选择。尽管有这些优势，但反向旋转转子也面临着挑战。例如，所需的机械系统复杂性使得同步两个转子的维护需求增加，并可能导致故障点。工程师还必须仔细考虑转子之间气流的动态，以优化性能并最小化干扰。总之，反向旋转转子（contrarotating rotors）代表了 rotorcraft 设计的重大进展，提供了更高的效率、稳定性和降低的噪音水平。随着航空航天行业的不断发展，反向旋转转子的实施可能在塑造航空未来方面发挥关键作用，特别是在关注城市出行和可持续飞行解决方案的应用中。理解这一技术对于工程师和爱好者而言至关重要，因为它体现了现代航空航天工程的创新精神。