astern thrust

简明释义

倒车推力

英英释义

例句

1.The pilot relied on astern thrust to stabilize the ship in rough waters.

飞行员依靠向后推力在波涛汹涌的水域中稳定船只。

2.The captain instructed the crew to apply astern thrust to help maneuver the vessel away from the dock.

船长指示船员施加向后推力以帮助船只远离码头。

3.The tugboat provided astern thrust to assist the large freighter in docking.

拖船提供了向后推力以帮助大型货轮靠岸。

4.During the emergency drill, we practiced using astern thrust to reverse the ship quickly.

在紧急演习中，我们练习使用向后推力快速倒船。

5.To avoid a collision, the first mate ordered an immediate astern thrust.

为了避免碰撞，副船长下令立即施加向后推力。

作文

In the realm of naval engineering and maritime navigation, the term astern thrust refers to the force that is generated when a vessel moves backward through the water. This concept is crucial for understanding how ships maneuver in tight spaces, such as harbors or during docking procedures. When a ship is required to reverse, the astern thrust plays a fundamental role in controlling its direction and speed. Properly managing this thrust can prevent accidents and ensure the safety of both the vessel and its crew.The mechanics behind astern thrust involve the propulsion system of the ship. Most modern vessels are equipped with powerful engines and propellers designed to generate significant thrust in both forward and reverse directions. When a ship's engine is engaged in reverse, the propeller rotates in a way that pushes water away from the stern of the vessel. This action creates a force that propels the ship backward, which is essential when navigating through narrow passages or when needing to reposition the vessel.Understanding astern thrust also requires knowledge of hydrodynamics. The interaction between the hull of the ship and the water is complex. As the ship moves backward, the flow of water around the hull changes, which can lead to different handling characteristics compared to moving forward. Mariners must be trained to anticipate these changes to maintain control over the vessel. For instance, a ship may experience a tendency to swing or pivot due to the uneven distribution of thrust, which can complicate maneuvers.In practical applications, the significance of astern thrust becomes evident during docking operations. When approaching a dock, a captain may need to reverse the ship to align it properly with the berth. In such scenarios, the effective use of astern thrust allows for fine adjustments to the vessel's position, ensuring a smooth and safe docking process. Failure to adequately manage this thrust could result in collisions or damage to the ship and surrounding structures.Moreover, the importance of astern thrust extends beyond just maneuvering. It is also a critical factor in emergency situations. For example, if a ship needs to quickly reverse to avoid an obstacle or another vessel, the ability to generate sufficient astern thrust can be the difference between averting disaster and facing a catastrophic incident. Therefore, understanding how to effectively utilize this thrust is an essential skill for any mariner.In conclusion, the concept of astern thrust is vital in the field of maritime navigation and engineering. It encompasses the forces at play when a vessel moves in reverse and highlights the importance of proper training and understanding of ship dynamics. By mastering the principles of astern thrust, sailors can enhance their ability to navigate safely and efficiently, ensuring the well-being of their crew and the integrity of their vessel. As the maritime industry continues to evolve, the significance of such concepts will remain paramount in fostering safe and effective navigation practices.

在海军工程和海洋导航领域，术语astern thrust指的是当船只向后移动时产生的力。这个概念对于理解船只如何在狭窄空间中操纵至关重要，比如港口或在停靠过程中。当船只需要倒退时，astern thrust在控制其方向和速度方面发挥着基本作用。妥善管理这种推力可以防止事故的发生，并确保船只及其船员的安全。astern thrust背后的机制涉及到船只的推进系统。大多数现代船只都配备了强大的发动机和设计用于在前进和后退方向上产生显著推力的螺旋桨。当船只的发动机倒转时，螺旋桨以一种推动水从船尾离开的方式旋转。这一动作产生的力推动船只向后移动，这在通过狭窄通道或需要重新定位船只时至关重要。理解astern thrust还需要对流体动力学有一定了解。船体与水之间的相互作用是复杂的。当船只向后移动时，水流在船体周围的变化会导致与前进时不同的操控特性。水手必须经过培训，以预见这些变化，从而保持对船只的控制。例如，由于推力分布不均，船只可能会出现摆动或旋转的倾向，这可能会使操纵变得复杂。在实际应用中，astern thrust的重要性在停靠操作中尤为明显。当靠近码头时，船长可能需要倒车以正确对齐船只与泊位。在这种情况下，有效利用astern thrust可以对船只的位置进行细微调整，确保平稳和安全的停靠过程。未能充分管理这种推力可能导致碰撞或对船只及周围结构造成损害。此外，astern thrust的重要性不仅限于操控。在紧急情况下，它也是一个关键因素。例如，如果船只需要迅速倒退以避开障碍物或其他船只，产生足够的astern thrust能力可能是避免灾难和面临灾难性事件之间的区别。因此，理解如何有效利用这种推力是任何水手必备的技能。总之，astern thrust的概念在海洋导航和工程领域至关重要。它涵盖了船只向后移动时所涉及的力量，突显了适当培训和对船舶动态理解的重要性。通过掌握astern thrust的原理，水手可以增强他们安全高效导航的能力，确保船员的安全和船只的完整性。随着海洋行业的不断发展，这些概念的重要性将继续在促进安全和有效的导航实践中占据重要地位。