fore-and-aft force

简明释义

纵向力

英英释义

例句

1.The ship experienced significant fore-and-aft force during the storm, causing it to pitch violently.

在暴风雨中，船只经历了显著的纵向力，导致它剧烈地上下摆动。

2.Understanding the fore-and-aft force is crucial for optimizing sail performance in sailing competitions.

理解纵向力对于优化帆船比赛中的帆性能至关重要。

3.The tugboat applied fore-and-aft force to maneuver the large vessel into the dock.

拖船施加了纵向力以将大型船只引导入码头。

4.Engineers must calculate the fore-and-aft force when designing the hull to ensure stability.

工程师在设计船体时必须计算纵向力以确保稳定性。

5.During the test, we measured the fore-and-aft force acting on the model to assess its design.

在测试过程中，我们测量了作用于模型的纵向力以评估其设计。

作文

In the world of maritime engineering and naval architecture, understanding various forces acting on a vessel is crucial for ensuring its stability and performance. One such important concept is the fore-and-aft force, which refers to the forces that act along the length of a ship, either from the bow (front) to the stern (back) or vice versa. These forces can significantly influence the handling characteristics of a vessel, especially during navigation in rough seas or when maneuvering in tight spaces.The fore-and-aft force can arise from several sources, including wind pressure on the sails, waves striking the hull, and thrust generated by the propulsion system. For instance, when a ship is sailing with the wind at its back, the wind exerts a force on the sails that propels the vessel forward. Conversely, when navigating against strong winds, the fore-and-aft force becomes a critical factor in determining how well the ship can maintain its course and speed.Moreover, the distribution of weight aboard a vessel plays a significant role in how these forces affect its performance. If cargo is unevenly distributed, it can lead to an imbalance that exacerbates the effects of the fore-and-aft force. This imbalance can result in excessive pitching or rolling, making the vessel harder to control and potentially compromising safety.Engineers and naval architects must carefully consider the fore-and-aft force when designing a ship. They need to ensure that the hull shape, weight distribution, and propulsion system are optimized to handle these forces effectively. For example, a vessel designed for high-speed travel may have a streamlined hull that minimizes resistance to the fore-and-aft force, allowing it to achieve greater speeds with less energy consumption.In addition to design considerations, the fore-and-aft force also plays a vital role during operations. Captains and crew members must be aware of how these forces interact with the ship’s movements. For instance, when docking, understanding the fore-and-aft force can help the crew make precise adjustments to the ship's speed and direction, ensuring a safe and efficient mooring process.Furthermore, training programs for mariners often include modules on understanding the dynamics of fore-and-aft force. This knowledge is essential for making informed decisions during various maritime operations, whether it's navigating through narrow channels or responding to changing weather conditions.In summary, the concept of fore-and-aft force is integral to the field of maritime engineering and navigation. By comprehensively understanding how these forces operate, engineers and mariners can enhance the safety, efficiency, and performance of vessels. As technology continues to advance, incorporating simulations and modeling techniques can further aid in predicting the behavior of fore-and-aft force under various conditions, leading to even more innovative ship designs and operational strategies. The mastery of this concept not only improves the functionality of ships but also contributes to the overall safety of maritime activities, making it a fundamental aspect of nautical knowledge.

在海事工程和船舶建筑的世界中，理解作用于船只的各种力量对于确保其稳定性和性能至关重要。其中一个重要的概念是前后力，它指的是沿船长方向作用的力量，无论是从船头（前部）到船尾（后部），还是反之亦然。这些力量可以显著影响船只的操控特性，特别是在恶劣海况下航行或在狭窄空间内机动时。前后力可以来自多个来源，包括风对帆的压力、波浪对船体的冲击以及推进系统产生的推力。例如，当一艘船在顺风航行时，风会对帆施加力量，从而推动船只向前。相反，当在强风中航行时，前后力成为决定船只如何保持航向和速度的关键因素。此外，船上货物的分布在这些力量如何影响船只性能方面也起着重要作用。如果货物分布不均，可能导致失衡，从而加剧前后力的影响。这种失衡可能导致过度的纵摇或横摇，使船只更难控制，并可能危及安全。工程师和船舶建筑师在设计船只时必须仔细考虑前后力。他们需要确保船体形状、重量分布和推进系统经过优化，以有效应对这些力量。例如，专为高速航行设计的船只可能具有流线型的船体，最大限度地减少对前后力的阻力，从而在更少的能量消耗下实现更大的速度。除了设计考虑外，前后力在操作过程中也起着至关重要的作用。船长和船员必须意识到这些力量如何与船只的运动相互作用。例如，在停靠时，了解前后力可以帮助船员精确调整船只的速度和方向，确保安全高效的停靠过程。此外，海员培训项目通常包括理解前后力动力学的模块。这些知识对于在各种海事操作中做出明智的决策至关重要，无论是在狭窄水道航行还是应对变化的天气条件。总之，前后力的概念是海事工程和导航领域不可或缺的一部分。通过全面理解这些力量的运作方式，工程师和海员可以提高船只的安全性、效率和性能。随着技术的不断进步，结合模拟和建模技术可以进一步帮助预测前后力在各种条件下的行为，从而促使更具创新性的船舶设计和操作策略。掌握这一概念不仅改善了船只的功能性，还为海事活动的整体安全做出了贡献，使其成为海事知识的基本方面。