longitudinal metacentric height

简明释义

纵稳心高度纵稳心高度

英英释义

例句

1.Engineers must calculate the longitudinal metacentric height to ensure the ship's design meets safety regulations.

工程师必须计算纵向重心高度以确保船舶设计符合安全规定。

2.A higher longitudinal metacentric height generally indicates better stability in rough seas.

较高的纵向重心高度通常表明在恶劣海况下更好的稳定性。

3.The stability of the vessel is largely determined by its longitudinal metacentric height, which affects how it responds to heeling.

船只的稳定性在很大程度上取决于其纵向重心高度，这影响了它对倾斜的反应。

4.During the design phase, we need to optimize the longitudinal metacentric height for improved performance.

在设计阶段，我们需要优化纵向重心高度以提高性能。

5.The crew was trained to understand how the longitudinal metacentric height affects the ship's behavior in waves.

船员接受培训以了解纵向重心高度如何影响船舶在波浪中的表现。

作文

The stability of a vessel is a critical aspect of naval architecture and marine engineering. One of the fundamental parameters used in assessing a ship's stability is the concept of metacentric height. In particular, the term longitudinal metacentric height refers to the distance between the center of gravity of the vessel and its longitudinal metacenter. This measurement plays a vital role in determining how well a ship can return to an upright position after being tilted by external forces such as waves or wind. A higher longitudinal metacentric height indicates better stability, which is crucial for preventing capsizing and ensuring the safety of the vessel and its crew.Understanding the longitudinal metacentric height involves a grasp of several key concepts in naval architecture. The metacenter itself is a point where the buoyant force acts when a vessel is tilted. When a ship heels over, the center of buoyancy shifts, and the metacenter moves accordingly. The longitudinal metacentric height is specifically concerned with this behavior in the longitudinal direction, as opposed to the transverse direction, which is often discussed in standard metacentric height calculations. By analyzing the longitudinal metacentric height, engineers can predict how a vessel will behave under various loading conditions and sea states.The importance of maintaining an appropriate longitudinal metacentric height cannot be overstated. If the center of gravity is too high relative to the metacenter, the vessel may become unstable, leading to dangerous situations at sea. For instance, a cargo ship that is loaded unevenly may experience a shift in its center of gravity, affecting its longitudinal metacentric height and overall stability. This is why proper loading procedures and weight distribution are essential elements of maritime safety practices.In practical terms, the calculation of longitudinal metacentric height involves complex mathematical models and simulations. Engineers use tools such as hydrostatic curves and stability software to analyze the vessel’s performance under different scenarios. These analyses help in designing ships that can withstand harsh marine environments while ensuring the safety of passengers and cargo.Moreover, regulations and guidelines from maritime authorities often dictate minimum stability criteria based on longitudinal metacentric height. Shipbuilders must adhere to these standards during the design phase to ensure compliance and safety. Additionally, ongoing assessments of a vessel’s stability throughout its operational life are necessary, particularly after modifications or repairs that could affect its weight distribution.In conclusion, the concept of longitudinal metacentric height is integral to the field of naval architecture and marine engineering. It serves as a key indicator of a vessel's stability and safety in various sea conditions. Understanding and effectively managing this parameter can prevent accidents and enhance the overall performance of ships. As the maritime industry continues to evolve, the importance of stability measures, including longitudinal metacentric height, will remain a focal point for engineers and shipbuilders alike.

船舶的稳定性是海洋建筑和海洋工程中的一个关键方面。评估船舶稳定性的基本参数之一是重心高度的概念。特别是，术语纵向重心高度指的是船舶重心与其纵向重心之间的距离。这一测量在确定船舶在受到波浪或风等外部力量倾斜后能否恢复到直立位置中起着至关重要的作用。较高的纵向重心高度表明更好的稳定性，这对于防止翻覆和确保船舶及其船员的安全至关重要。理解纵向重心高度需要掌握海洋建筑中的几个关键概念。重心本身是当船舶倾斜时浮力作用的点。当船舶倾斜时，浮力中心会发生位移，重心也会相应移动。纵向重心高度特别关注这种行为在纵向方向上的表现，而不是通常在标准重心高度计算中讨论的横向方向。通过分析纵向重心高度，工程师可以预测船舶在不同载荷条件和海况下的表现。保持适当的纵向重心高度的重要性不容小觑。如果重心相对于重心过高，船舶可能变得不稳定，从而导致海上危险情况。例如，一艘货船如果装载不均匀，可能会导致重心发生位移，影响其纵向重心高度和整体稳定性。这就是为什么正确的装载程序和重量分配是海事安全实践的重要组成部分。在实际操作中，纵向重心高度的计算涉及复杂的数学模型和仿真。工程师使用水静力曲线和稳定性软件等工具来分析船舶在不同场景下的表现。这些分析有助于设计能够承受恶劣海洋环境的船舶，同时确保乘客和货物的安全。此外，海事当局的法规和指南通常规定了基于纵向重心高度的最低稳定性标准。船舶制造商必须在设计阶段遵循这些标准，以确保合规性和安全性。此外，随着船舶运营生命周期的持续进行，定期评估船舶的稳定性也是必要的，特别是在可能影响其重量分布的修改或修理之后。总之，纵向重心高度的概念对于海洋建筑和海洋工程领域至关重要。它作为船舶在各种海况下稳定性和安全性的关键指标。理解并有效管理这一参数可以防止事故发生，并增强船舶的整体性能。随着海事行业的不断发展，稳定性措施（包括纵向重心高度）的重要性将继续成为工程师和造船商的关注重点。