ship resistance

简明释义

船舶阻力

英英释义

例句

1.Advanced materials can help lower ship resistance 船舶阻力 and enhance overall performance.

先进材料可以帮助降低船舶阻力并提升整体性能。

2.Engineers are constantly looking for ways to reduce ship resistance 船舶阻力 to improve fuel efficiency.

工程师们一直在寻找减少船舶阻力以提高燃油效率的方法。

3.The shape of the vessel's bow plays a crucial role in determining ship resistance 船舶阻力 in rough seas.

船只船头的形状在决定恶劣海况下的船舶阻力中起着至关重要的作用。

4.The design of the hull can significantly affect the ship resistance 船舶阻力 encountered during navigation.

船体的设计会显著影响航行中遇到的船舶阻力。

5.The captain noted that the current weather conditions increased the ship resistance 船舶阻力 faced by the crew.

船长注意到当前的天气条件增加了船员面临的船舶阻力。

作文

In the field of naval architecture and marine engineering, understanding the concept of ship resistance is crucial for designing efficient vessels. Ship resistance refers to the total force that opposes the motion of a ship through water. This resistance can be broken down into several components, including frictional resistance, wave-making resistance, and air resistance. Each of these components plays a significant role in determining how efficiently a ship can move through its environment.Frictional resistance is primarily caused by the contact between the hull of the ship and the water. As the ship moves, the water molecules stick to the surface of the hull, creating a drag effect. This drag increases with the speed of the ship, meaning that faster ships will experience greater ship resistance. Engineers must carefully consider the shape and materials used in the hull design to minimize this type of resistance. For instance, a smooth, streamlined hull can significantly reduce frictional drag, allowing the ship to move more efficiently.Wave-making resistance occurs when a ship displaces water as it moves forward. The energy required to create waves contributes to the overall ship resistance. Larger ships tend to create bigger waves, which can lead to increased resistance. Therefore, naval architects often aim to design ships that minimize wave formation, especially at higher speeds. This involves optimizing the hull form to ensure that the ship cuts through the water rather than pushing it aside.Air resistance, while often less significant than the other two types of resistance, still plays a role in the overall ship resistance. As a ship travels through the air above the water, it encounters wind resistance, which can affect its speed and fuel efficiency. Designers must consider the superstructure of the ship, such as masts and antennas, to reduce wind drag. Streamlined designs can help mitigate the effects of air resistance, contributing to better overall performance.To effectively manage ship resistance, engineers employ various strategies during the design process. Computational fluid dynamics (CFD) simulations are increasingly used to predict how different hull shapes will perform in real-world conditions. By modeling the flow of water around a ship, designers can identify areas of high resistance and make adjustments to improve efficiency. Additionally, conducting tank tests with scale models allows for empirical data to inform design decisions.Another important aspect of managing ship resistance is the consideration of operational factors. The weight of the cargo, the distribution of weight on the ship, and the trim of the vessel can all influence resistance levels. Proper loading and unloading practices, along with regular maintenance of the hull, can help optimize performance and reduce energy consumption.In conclusion, understanding ship resistance is essential for anyone involved in the design and operation of marine vessels. By addressing the various components of resistance and employing advanced design techniques, engineers can create ships that are not only faster but also more fuel-efficient and environmentally friendly. As the maritime industry continues to evolve, the emphasis on reducing ship resistance will play a critical role in achieving sustainable shipping practices and meeting global environmental standards.

在船舶建筑和海洋工程领域，理解船舶阻力的概念对于设计高效的船只至关重要。船舶阻力是指在船只通过水体时，反对其运动的总力。这种阻力可以分解为几个组成部分，包括摩擦阻力、波浪阻力和空气阻力。每个组成部分在决定船舶如何有效地在环境中移动方面都起着重要作用。摩擦阻力主要是由于船体与水之间的接触而引起的。当船只移动时，水分子会粘附在船体表面，产生拖曳效应。随着船速的增加，这种拖曳会增加，这意味着速度更快的船只会经历更大的船舶阻力。工程师必须仔细考虑船体设计中使用的形状和材料，以最小化这种类型的阻力。例如，光滑、流线型的船体可以显著减少摩擦阻力，使船只能够更高效地移动。波浪阻力发生在船只前进时排开水。产生波浪所需的能量会增加整体的船舶阻力。较大的船只往往会产生更大的波浪，这可能导致阻力增加。因此，船舶建筑师通常旨在设计出可以最小化波浪形成的船只，尤其是在高速航行时。这涉及到优化船体形状，以确保船只切割水面，而不是将水推开。空气阻力虽然通常不如其他两种阻力显著，但仍然在整体的船舶阻力中发挥作用。当船只穿过水面上方的空气时，它会遇到风阻，这会影响其速度和燃料效率。设计师必须考虑船只的上部结构，如桅杆和天线，以减少风阻。流线型设计可以帮助减轻空气阻力的影响，从而提高整体性能。为了有效管理船舶阻力，工程师在设计过程中采用各种策略。计算流体动力学（CFD）模拟越来越多地用于预测不同船体形状在现实条件下的表现。通过模拟水流围绕船只的流动，设计师可以识别出高阻力区域，并进行调整以提高效率。此外，使用缩尺模型进行水池测试可以提供实证数据，以指导设计决策。管理船舶阻力的另一个重要方面是考虑操作因素。货物的重量、船只上的重量分布以及船只的吃水都会影响阻力水平。适当的装载和卸载实践，以及定期维护船体，可以帮助优化性能并减少能耗。总之，理解船舶阻力对任何参与海洋船舶设计和操作的人来说都是至关重要的。通过解决阻力的各个组成部分并采用先进的设计技术，工程师可以创造出不仅速度更快，而且更加节能和环保的船只。随着海运行业的持续发展，减少船舶阻力的重视将在实现可持续航运实践和满足全球环境标准方面发挥关键作用。