rigid body

简明释义

刚体

英英释义

例句

1.The dynamics of a rigid body can be described using Newton's laws of motion.

一个刚体的动力学可以用牛顿运动定律来描述。

2.In classical mechanics, a rigid body refers to an object that does not deform under stress.

在经典力学中，刚体是指在应力下不会变形的物体。

3.In robotics, the movement of arms and joints can be modeled as a series of rigid bodies connected by joints.

在机器人技术中，手臂和关节的运动可以建模为一系列由关节连接的刚体。

4.Engineers must consider the behavior of a rigid body when designing structures to ensure stability.

工程师在设计结构时必须考虑刚体的行为以确保稳定性。

5.When analyzing the motion of a rigid body, we often simplify the problem by assuming it moves without rotation.

在分析一个刚体的运动时，我们通常通过假设它不旋转来简化问题。

作文

In the field of physics and engineering, the concept of a rigid body (刚体) is fundamental to understanding how objects behave under various forces and conditions. A rigid body is defined as an idealized solid object that does not deform or change shape when subjected to external forces. This means that the distances between any two points within the body remain constant, regardless of the forces applied to it. The study of rigid bodies is crucial in mechanics, as it allows us to analyze the motion and equilibrium of objects without the complications introduced by deformation.When we consider real-world applications, the idea of a rigid body simplifies many problems. For example, when designing structures such as bridges or buildings, engineers often treat these structures as rigid bodies to predict how they will respond to loads, wind, and other environmental factors. This simplification enables them to ensure safety and stability in their designs.The analysis of rigid bodies can be further divided into two main areas: statics and dynamics. In statics, we examine objects at rest and the forces acting on them. Here, the principles of equilibrium come into play, where the sum of forces and moments acting on a rigid body must equal zero for the body to remain stationary. On the other hand, dynamics involves studying rigid bodies in motion. Newton's laws of motion are applied to understand how forces affect the acceleration and velocity of a rigid body.One of the key characteristics of a rigid body is its center of mass, which is the point at which the body's mass is considered to be concentrated. The motion of a rigid body can be described in terms of translational motion (movement of the center of mass) and rotational motion (spinning around an axis). Understanding these types of motion is essential for solving problems related to rigid bodies.In addition to theoretical applications, the concept of rigid bodies also plays a significant role in computer graphics and animation. When animators create realistic movements for characters or objects, they often use the principles of rigid body dynamics to ensure that the movements appear natural and believable. By simulating how rigid bodies interact with each other and their environment, animators can create lifelike animations that captivate audiences.In conclusion, the study of rigid bodies (刚体) is a vital aspect of physics and engineering that helps us understand the behavior of solid objects under various conditions. Whether in the context of structural design, mechanics, or computer graphics, the principles governing rigid bodies provide a framework for analyzing and predicting the motion and stability of objects. As we continue to explore the complexities of the physical world, the concept of rigid bodies will remain an essential tool in our scientific and engineering toolkit.

在物理和工程领域，rigid body（刚体）的概念对于理解物体在各种力和条件下的行为至关重要。rigid body被定义为一种理想化的固体物体，当受到外力作用时不会变形或改变形状。这意味着，无论施加于其上的力如何，物体内部任意两点之间的距离保持不变。rigid body的研究在力学中至关重要，因为它使我们能够分析物体的运动和静力平衡，而不必考虑变形带来的复杂性。当我们考虑现实世界的应用时，rigid body的概念简化了许多问题。例如，在设计桥梁或建筑等结构时，工程师通常将这些结构视为rigid bodies，以预测它们如何应对载荷、风和其他环境因素。这种简化使他们能够确保设计的安全性和稳定性。rigid bodies的分析可以进一步分为两个主要领域：静力学和动力学。在静力学中，我们研究处于静止状态的物体及其所受的力。在这里，平衡原理发挥作用，施加于rigid body上的力和力矩的总和必须等于零，以使物体保持静止。另一方面，动力学涉及研究运动中的rigid bodies。牛顿运动定律被应用于理解力如何影响rigid body的加速度和速度。rigid body的一个关键特征是其质心，即物体质量被认为集中于此的点。rigid body的运动可以用平移运动（质心的移动）和旋转运动（围绕轴旋转）来描述。理解这些运动类型对于解决与rigid bodies相关的问题至关重要。除了理论应用之外，rigid bodies的概念在计算机图形和动画中也起着重要作用。当动画师为角色或物体创建逼真的运动时，他们经常使用rigid body动力学的原理，以确保运动看起来自然且可信。通过模拟rigid bodies如何相互作用以及与环境的互动，动画师可以创建引人入胜的生动画面。总之，rigid bodies（刚体）的研究是物理和工程的重要方面，帮助我们理解固体物体在各种条件下的行为。无论是在结构设计、力学还是计算机图形学的背景下，支配rigid bodies的原理为分析和预测物体的运动和稳定性提供了框架。随着我们继续探索物理世界的复杂性，rigid bodies的概念将始终是我们科学和工程工具箱中的一个重要工具。