center of pressure

简明释义

压力中心

英英释义

例句

1.The center of pressure 压力中心 can shift depending on the shape of the object in the flow.

根据物体在流动中的形状，压力中心 中心可以发生变化。

2.The design of the sailboat relies heavily on the center of pressure 压力中心 for optimal performance.

帆船的设计在很大程度上依赖于压力中心 中心以实现最佳性能。

3.Engineers must calculate the center of pressure 压力中心 to ensure the structure can withstand wind loads.

工程师必须计算压力中心 中心以确保结构能够承受风荷载。

4.In fluid dynamics, the center of pressure 压力中心 is crucial for determining stability.

在流体动力学中，压力中心 中心对于确定稳定性至关重要。

5.The center of pressure 压力中心 on the wing changes with the angle of attack.

机翼上的压力中心 中心随攻角的变化而变化。

作文

In the study of fluid dynamics and aerodynamics, the concept of the center of pressure plays a crucial role in understanding how forces act on objects immersed in or moving through a fluid. The center of pressure refers to the point on an object where the total sum of a pressure field acts, causing a force to act through that point. This concept is vital for engineers and designers who work with aircraft, boats, and various structures subjected to fluid flow.When an object is placed in a fluid, it experiences pressure from the fluid surrounding it. This pressure varies with depth and velocity, leading to a distribution of forces across the surface of the object. The center of pressure is determined by calculating the moments created by these pressure forces about a reference point, typically the object's center of gravity. Understanding this point allows engineers to predict how the object will behave under different conditions, such as changes in speed or angle of attack.For instance, in aviation, the location of the center of pressure is critical for maintaining stability during flight. If the center of pressure moves too far forward or backward relative to the center of gravity, the aircraft can become unstable, leading to difficulties in control. Designers must carefully analyze the aerodynamic properties of wings and fuselage shapes to ensure that the center of pressure remains within acceptable limits throughout the flight envelope.Similarly, in naval architecture, the center of pressure is essential for understanding how a ship will respond to waves and wind. Ships are designed with specific hull shapes that help manage the forces acting on them, ensuring that the center of pressure is aligned with the ship's center of buoyancy. This alignment is crucial for maintaining stability and preventing capsizing, especially in rough seas.Moreover, the center of pressure concept extends beyond just aviation and marine applications. It is also relevant in civil engineering, particularly in the design of tall buildings and structures exposed to wind loads. Engineers must consider the center of pressure when designing facades and structural supports to ensure that the forces acting on the building do not exceed its capacity, which could lead to structural failure.In conclusion, the center of pressure is a fundamental concept in various fields of engineering and physics. By understanding where the total pressure force acts on an object, engineers can design safer and more efficient vehicles, structures, and systems. Whether it’s an airplane soaring through the skies, a ship navigating turbulent waters, or a skyscraper standing tall against the wind, the principles surrounding the center of pressure are integral to ensuring their performance and safety.

在流体动力学和空气动力学的研究中，压力中心的概念在理解物体在流体中浸没或移动时所受力的作用方面起着至关重要的作用。压力中心指的是一个物体上总压力场作用的点，从而导致一个力通过该点作用。这个概念对于从事航空器、船只和各种受流体流动影响的结构的工程师和设计师来说至关重要。当一个物体被放置在流体中时，它会受到周围流体的压力。这种压力随着深度和速度的变化而变化，导致作用在物体表面上的力的分布。压力中心是通过计算这些压力力相对于参考点（通常是物体的重心）所产生的力矩来确定的。理解这一点使工程师能够预测物体在不同条件下的行为，例如速度或攻角的变化。例如，在航空领域，压力中心的位置对保持飞行稳定性至关重要。如果压力中心相对于重心移动得太远，飞机可能会变得不稳定，导致控制困难。设计师必须仔细分析机翼和机身形状的空气动力学特性，以确保压力中心在整个飞行包络线内保持在可接受的范围内。同样，在船舶设计中，压力中心对于理解船只如何响应波浪和风也至关重要。船只的设计具有特定的船体形状，这有助于管理作用在其上的力，确保压力中心与船只的浮力中心对齐。这种对齐对于保持稳定性和防止翻覆尤其重要，特别是在恶劣海况下。此外，压力中心的概念还扩展到土木工程，特别是在设计暴露于风荷载的高层建筑和结构时。工程师在设计外立面和结构支撑时必须考虑压力中心，以确保作用在建筑物上的力不会超过其承载能力，这可能导致结构失效。总之，压力中心是各个工程和物理领域的基本概念。通过理解总压力力作用于物体的位置，工程师可以设计出更安全、更高效的车辆、结构和系统。无论是飞翔在天空中的飞机、在波涛汹涌的水域中航行的船只，还是在风中屹立不倒的摩天大楼，围绕压力中心的原理对于确保它们的性能和安全性都是不可或缺的。