fore-and-aft draft ratio

简明释义

首尾吃水比

英英释义

例句

1.The engineer explained how the fore-and-aft draft ratio affects the vessel's performance.

工程师解释了前后吃水比如何影响船舶性能。

2.The captain checked the fore-and-aft draft ratio to ensure the ship was balanced before departure.

船长检查了前后吃水比以确保船在出发前保持平衡。

3.Adjusting the fore-and-aft draft ratio is crucial for maintaining stability in rough seas.

调整前后吃水比对于在恶劣海况下保持稳定至关重要。

4.Before loading cargo, we need to measure the fore-and-aft draft ratio accurately.

在装货之前，我们需要准确测量前后吃水比。

5.A proper fore-and-aft draft ratio can improve fuel efficiency during long voyages.

适当的前后吃水比可以提高长途航行中的燃油效率。

作文

In the field of naval architecture and marine engineering, understanding various technical terms is crucial for the design and operation of vessels. One such important term is fore-and-aft draft ratio, which plays a significant role in determining a ship's stability and performance. The fore-and-aft draft ratio refers to the difference in the draft measurements at the bow (front) and stern (back) of a ship. Draft itself is defined as the vertical distance between the waterline and the bottom of the hull, or keel. This measurement is critical because it affects how a vessel sits in the water, its buoyancy, and its overall seaworthiness.When ships are loaded, the distribution of weight can lead to variations in draft at different points along the hull. A well-balanced vessel will have a fore-and-aft draft ratio that indicates even weight distribution, which is essential for maintaining stability during navigation. If the draft at the bow is significantly greater than at the stern, or vice versa, it can lead to undesirable handling characteristics, making the vessel more difficult to control. This imbalance can also increase the risk of capsizing, especially in rough seas.The fore-and-aft draft ratio is also an important consideration during the design phase of a ship. Naval architects must carefully calculate the ideal ratios to ensure that the vessel is not only capable of carrying the desired cargo but also able to maintain optimal performance under various loading conditions. A properly designed hull shape can help achieve a favorable fore-and-aft draft ratio, contributing to better fuel efficiency and reduced resistance while moving through water.Moreover, the fore-and-aft draft ratio can influence a ship's speed. A vessel with an unfavorable ratio may experience increased drag, which can slow it down and require more power from the engines. This can lead to higher operational costs and reduced efficiency, making it essential for ship operators to monitor and manage this ratio throughout the life of the vessel.In addition to its implications for stability and performance, the fore-and-aft draft ratio is also relevant for regulatory compliance. Many maritime authorities have specific guidelines regarding draft limits for different types of vessels. Ensuring that a ship maintains an acceptable fore-and-aft draft ratio can help operators avoid fines and ensure safety standards are met.In conclusion, the concept of fore-and-aft draft ratio is fundamental in the maritime industry. It encompasses aspects of design, stability, performance, and regulatory compliance. By understanding and managing this ratio, naval architects and ship operators can enhance the safety and efficiency of their vessels, ultimately leading to a more sustainable and effective maritime operation.

在海洋建筑和海洋工程领域，理解各种技术术语对于船舶的设计和操作至关重要。其中一个重要术语是前后吃水比，它在确定船舶的稳定性和性能方面发挥着重要作用。前后吃水比是指船头（前部）和船尾（后部）的吃水测量值之间的差异。吃水本身被定义为水线与船体底部或龙骨之间的垂直距离。这个测量值至关重要，因为它影响船舶在水中的位置、浮力以及整体的适航性。当船舶装载时，重量的分布可能导致船体不同点的吃水出现变化。一艘平衡良好的船舶将具有表明均匀重量分布的前后吃水比，这对于在航行过程中保持稳定至关重要。如果船头的吃水明显大于船尾的吃水，反之亦然，可能会导致不良的操控特性，使船舶更难以控制。这种不平衡还可能增加倾覆的风险，尤其是在恶劣海况下。前后吃水比在船舶设计阶段也是一个重要的考虑因素。海洋建筑师必须仔细计算理想的比率，以确保船舶不仅能够承载所需的货物，还能够在各种装载条件下保持最佳性能。适当设计的船体形状可以帮助实现有利的前后吃水比，从而有助于提高燃油效率并减少在水中移动时的阻力。此外，前后吃水比还会影响船舶的速度。具有不利比率的船舶可能会经历增加的阻力，这可能会减慢其速度并需要更多的发动机功率。这可能导致更高的运营成本和降低的效率，因此船舶运营商必须在船舶的整个生命周期内监控和管理这一比率。除了对稳定性和性能的影响外，前后吃水比在合规性方面也很重要。许多海事当局对不同类型船舶的吃水限制有具体的指导方针。确保船舶保持可接受的前后吃水比可以帮助运营商避免罚款，并确保满足安全标准。总之，前后吃水比的概念在海事行业中是基础。它涵盖了设计、稳定性、性能和合规性等方面。通过理解和管理这一比率，海洋建筑师和船舶运营商可以提高船舶的安全性和效率，最终实现更加可持续和有效的海洋操作。