aft perpendicular

简明释义

尾垂线

英英释义

例句

1.The surveyor used the aft perpendicular as a reference point for the new deck installation.

测量员将艏垂线作为新甲板安装的参考点。

2.To achieve optimal hydrodynamics, the propeller must be aligned with the aft perpendicular.

为了达到最佳的水动力学，螺旋桨必须与艏垂线对齐。

3.During the inspection, we measured the distance from the aft perpendicular to the stern.

在检查过程中，我们测量了从艏垂线到船尾的距离。

4.The engineer noted that any deviation from the aft perpendicular could affect the vessel's performance.

工程师指出，任何偏离艏垂线的情况都可能影响船舶的性能。

5.The ship's design requires that the hull be constructed with an accurate aft perpendicular to ensure stability.

船体设计要求准确构建艏垂线以确保稳定性。

作文

The concept of the aft perpendicular is essential in naval architecture and marine engineering. It refers to a vertical line that is drawn at the aft end of a ship, specifically at the point where the hull meets the waterline. This line serves as a reference point for various measurements and calculations related to the vessel's design and performance. Understanding the aft perpendicular is crucial for anyone involved in shipbuilding or maritime operations because it impacts stability, buoyancy, and overall vessel efficiency.In the context of ship design, the aft perpendicular plays a significant role in determining the vessel's center of gravity and center of buoyancy. By accurately establishing this reference point, naval architects can ensure that the ship will handle well under different loading conditions. For instance, if the weight distribution is not balanced concerning the aft perpendicular, it could lead to undesirable pitching or rolling motions while at sea. Therefore, careful consideration of this measurement is vital during the design phase.Additionally, the aft perpendicular is used in calculating the ship's trim, which is the difference between the forward and aft drafts. A well-trimmed ship is more efficient in terms of fuel consumption and speed. When a ship is loaded, the distribution of weight must be assessed in relation to the aft perpendicular to maintain optimal performance. If the ship is too heavy at the stern, it may cause excessive drag and reduce speed, leading to higher operational costs.Moreover, the aft perpendicular is also important when considering the effects of waves on the vessel. Ships are designed to cut through waves efficiently, and the position of the aft perpendicular influences how the hull interacts with water. A well-designed hull will minimize resistance and enhance the vessel's ability to ride over waves rather than plow through them. This aspect is particularly relevant for vessels operating in rough seas, where stability and maneuverability are paramount.In practical terms, the aft perpendicular serves as a benchmark for various operational procedures. For example, during loading and unloading operations, crew members must be aware of how cargo placement affects the ship's balance concerning the aft perpendicular. Any significant deviation from this reference could jeopardize the safety of the vessel and its crew.In conclusion, the aft perpendicular is a fundamental concept in maritime studies that affects many aspects of ship design and operation. Its importance cannot be overstated, as it directly influences stability, performance, and safety. Anyone working in the marine industry should strive to understand the implications of the aft perpendicular to ensure successful ship management and operation. Mastery of this concept will lead to better decision-making and more efficient practices in the field of naval architecture and marine engineering.

“后垂线”这一概念在船舶设计和海洋工程中至关重要。它指的是在船舶的尾部绘制的一条垂直线，具体而言，是在船体与水线相接的点处绘制的。这条线作为与船舶设计和性能相关的各种测量和计算的参考点。理解“后垂线”对于任何参与造船或海事操作的人来说都是至关重要的，因为它影响着稳定性、浮力和整体船舶效率。在船舶设计的背景下，“后垂线”在确定船舶的重心和浮心方面发挥着重要作用。通过准确建立这个参考点，船舶设计师可以确保船舶在不同的装载条件下能够良好操控。例如，如果重量分布相对于“后垂线”不平衡，可能会导致在海上出现不希望的俯仰或滚动运动。因此，在设计阶段对这一测量的仔细考虑至关重要。此外，“后垂线”在计算船舶的吃水差（即前后吃水的差异）时也很重要。一艘良好吃水的船舶在燃料消耗和速度方面更加高效。当船舶装载时，必须评估货物放置相对于“后垂线”的影响，以保持最佳性能。如果船舶在船尾过重，可能会导致过大的阻力并降低速度，从而增加运营成本。此外，“后垂线”在考虑波浪对船舶影响时也很重要。船舶被设计为有效地切割波浪，而“后垂线”的位置影响着船体与水的互动。一个设计良好的船体将最大限度地减少阻力，并增强船舶越过波浪而不是深入波浪的能力。这一方面在操作于恶劣海域的船舶中特别相关，因为稳定性和机动性至关重要。在实际操作中，“后垂线”作为各种操作程序的基准。例如，在装卸操作期间，船员必须意识到货物放置如何影响船舶相对于“后垂线”的平衡。任何显著偏离这一参考点的情况都可能危及船舶及其船员的安全。总之，“后垂线”是海事研究中的一个基本概念，影响着船舶设计和操作的许多方面。其重要性不容低估，因为它直接影响着稳定性、性能和安全性。在海洋工业中工作的人应努力理解“后垂线”的影响，以确保成功的船舶管理和操作。掌握这一概念将有助于更好的决策和更高效的海洋建筑与海洋工程实践。