added mass

简明释义

附加质量

英英释义

例句

1.Engineers must account for added mass 附加质量 when designing structures that interact with fluids.

工程师在设计与流体相互作用的结构时，必须考虑added mass 附加质量。

2.When a boat is in motion, the water around it contributes to its overall inertia due to the added mass 附加质量 effect.

当一艘船在运动时，周围的水由于added mass 附加质量效应对其整体惯性产生影响。

3.The added mass 附加质量 of a submerged object affects its buoyancy and stability.

浸没物体的added mass 附加质量影响其浮力和稳定性。

4.The calculation of added mass 附加质量 helps in determining the damping effects on oscillating bodies.

计算added mass 附加质量有助于确定振荡体的阻尼效应。

5.In naval architecture, understanding added mass 附加质量 is crucial for predicting ship behavior in waves.

在船舶设计中，理解added mass 附加质量对于预测船舶在波浪中的行为至关重要。

作文

The concept of added mass is crucial in the field of fluid dynamics and marine engineering. When an object moves through a fluid, it does not only displace the fluid but also interacts with it in a way that changes the effective mass of the system. This phenomenon is known as added mass (即附加质量). It refers to the additional inertia that an object experiences due to the surrounding fluid when it accelerates. Understanding added mass is essential for accurately predicting the motion of floating bodies, such as ships and buoys, in water. When a ship sails through the ocean, it pushes water aside, creating waves and currents. The water that is displaced has its own mass, which adds to the inertia of the ship. Therefore, the ship must exert more force to achieve the same acceleration as it would in a vacuum. This increase in effective mass is what we refer to as added mass. In practical terms, engineers must account for this effect when designing vessels to ensure stability, efficiency, and safety. The calculation of added mass is complex and varies depending on the shape and size of the object, as well as the properties of the fluid. For instance, a sphere moving through water will have a different added mass compared to a flat plate or a streamlined hull. Researchers use mathematical models and experimental data to estimate these values, allowing for better design and performance predictions. Moreover, the concept of added mass is not limited to marine applications. It is also relevant in aerodynamics, where objects moving through the air experience similar effects. For example, an aircraft wing generates lift by displacing air, and the added mass effect must be considered to optimize performance during takeoff and landing. In summary, the understanding of added mass (附加质量) is vital in various engineering fields. It allows engineers and scientists to predict how objects will behave in fluid environments, leading to safer and more efficient designs. As technology advances, the methods for analyzing and applying the principles of added mass continue to evolve, ensuring that we can meet the challenges of modern engineering with precision and innovation.