longitudinal metacentric height above keel

简明释义

龙骨以上纵向稳心高度

英英释义

例句

1.During the design phase, the longitudinal metacentric height above keel is a critical factor in determining the ship's performance.

在设计阶段，龙骨上纵向重心高度是决定船舶性能的关键因素。

2.Engineers must calculate the longitudinal metacentric height above keel to ensure the ship remains upright during rough seas.

工程师必须计算龙骨上纵向重心高度以确保船舶在恶劣海况下保持直立。

3.A higher longitudinal metacentric height above keel generally indicates better stability for the ship's design.

较高的龙骨上纵向重心高度通常表明船舶设计的稳定性更好。

4.The naval architect explained that the longitudinal metacentric height above keel influences the ship's rolling motion.

海军建筑师解释说，龙骨上纵向重心高度影响船舶的横摇运动。

5.The stability of the vessel depends significantly on the longitudinal metacentric height above keel, which affects how it responds to waves.

船舶的稳定性在很大程度上取决于龙骨上纵向重心高度，这会影响其对波浪的反应。

作文

Understanding the concept of longitudinal metacentric height above keel is essential for naval architects and marine engineers. This term refers to a critical measurement that helps determine the stability of a ship or floating vessel. The longitudinal metacentric height is defined as the distance between the center of gravity and the metacenter of the vessel, while 'above keel' indicates that this measurement is taken from the keel, which is the structural backbone of the ship. To grasp why this measurement is vital, we must first consider how ships operate in water. When a ship is at rest, its center of gravity (CG) is located at a certain point, and the metacenter (M) is a point where the buoyant force acts when the vessel is tilted. The longitudinal metacentric height above keel essentially provides an indication of how much righting moment the vessel has when it is tilted due to external forces like waves or wind. A higher longitudinal metacentric height means that the ship will return to an upright position more quickly after being tilted, thus enhancing its stability.In practical applications, calculating the longitudinal metacentric height above keel involves various factors, including the shape of the hull, the distribution of weight, and the overall design of the vessel. Naval architects use complex formulas and simulations to ensure that the metacentric height meets safety standards. For instance, if a ship is designed for rough seas, it must have a sufficient longitudinal metacentric height to withstand the forces acting upon it without capsizing.Moreover, the importance of the longitudinal metacentric height above keel extends beyond just safety; it also influences the performance of the vessel. A well-balanced ship can navigate more efficiently, conserve fuel, and provide a more comfortable experience for passengers and crew. Therefore, understanding and optimizing this measurement is crucial not only for the integrity of the vessel but also for operational efficiency.In conclusion, the longitudinal metacentric height above keel is a fundamental concept in ship design and stability analysis. It serves as a key indicator of a vessel's ability to resist tipping and to recover from tilting. As maritime technology advances, the methods for calculating and enhancing this measurement continue to evolve, ensuring safer and more efficient vessels on our waters. For anyone involved in maritime activities, a solid grasp of this term and its implications is indispensable. In summary, the longitudinal metacentric height above keel (纵向元心高度) is a crucial aspect of ship stability, influencing both safety and performance. Understanding its significance helps in designing vessels that are not only seaworthy but also efficient in their operations.

理解“纵向元心高度”这一概念对于海洋建筑师和海洋工程师至关重要。这个术语指的是一个关键的测量，它有助于确定船舶或漂浮物体的稳定性。纵向元心高度被定义为重心与船舶的元心之间的距离，而“高于龙骨”则表示这一测量是从龙骨开始的，龙骨是船舶的结构主干。要理解为什么这个测量至关重要，我们首先必须考虑船舶在水中的运作。当船舶静止时，其重心（CG）位于某个点，元心（M）是当船舶倾斜时浮力作用的点。纵向元心高度基本上提供了一个指示，表明当船舶因外部力量如波浪或风而倾斜时，船舶恢复到直立位置的力矩。较高的纵向元心高度意味着船舶在倾斜后更快地返回到直立位置，从而增强了其稳定性。在实际应用中，计算纵向元心高度涉及多个因素，包括船体的形状、重量的分布以及船舶的整体设计。海洋建筑师使用复杂的公式和仿真来确保元心高度符合安全标准。例如，如果一艘船设计用于恶劣海域，则必须具有足够的纵向元心高度，以抵御作用于其上的力量而不发生翻覆。此外，纵向元心高度的重要性不仅限于安全；它还影响船舶的性能。一艘平衡良好的船舶可以更有效地航行，节省燃料，并为乘客和船员提供更舒适的体验。因此，理解和优化这一测量对于船舶的完整性和操作效率至关重要。总之，纵向元心高度是船舶设计和稳定性分析中的基本概念。它作为船舶抵抗倾斜和恢复倾斜的能力的关键指标。随着海事技术的进步，计算和增强这一测量的方法不断发展，确保我们的水域上有更安全、更高效的船舶。对于任何参与海事活动的人来说，扎实掌握这一术语及其影响至关重要。总而言之，纵向元心高度（longitudinal metacentric height above keel）是船舶稳定性的关键方面，影响着安全性和性能。理解其重要性有助于设计出不仅适航而且在运行中高效的船舶。