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相关概念视频

Design Example: Traverse Angle Computations01:25

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Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
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Planar Rigid-Body Motion01:22

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Understanding the movement of a rigid body in planar motion involves recognizing that every particle within this body is traversing a path that maintains a consistent distance from a specific plane. This concept is fundamental in the study of physics and mechanical engineering, and it allows us to comprehend better how objects move in space.
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Suppose a car moves on flat ground and turns to the left. The centripetal force causing the car to turn in a circular path is due to friction between the tires and the road. For this, a minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway. Let's now consider banked curves, where the slope of the road helps in negotiating the curve. The greater the angle of the curve, the faster one can take the curve. It is common for race tracks for...
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Relative Motion Analysis using Rotating Axes-Problem Solving01:29

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Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
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A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
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相关实验视频

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Subject-specific Musculoskeletal Model for Studying Bone Strain During Dynamic Motion
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固体轨道体的形状可以沿着所需的路径滚动

Yaroslav I Sobolev1, Ruoyu Dong2, Tsvi Tlusty3,4

  • 1Center for Soft and Living Matter, Institute for Basic Science (IBS), Ulsan, South Korea. yaroslav.sobolev@gmail.com.

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概括
此摘要是机器生成的。

研究人员设计了新的滚动形状, 这一突破在机器人和光学方面有着潜在的应用.

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相关实验视频

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科学领域:

  • 数学
  • 物理
  • 机器人技术
  • 光学学

背景情况:

  • 滚动运动通常涉及到像圆柱体和球体一样的简单形状.
  • 像形体和球形体这样的奇特固体表现出曲线滚动路径,但仅限于形状的轨迹.
  • 现有的滚动车体研究集中在特定的形状和有限的路径多样性上.

研究的目的:

  • 要确定是否存在一个通用的解决方案来设计一个滚动的身体来追踪给定的无限周期轨迹.
  • 开发一个算法来创建这样的物体,称为"trajectoids".
  • 通过3D打印和追踪它们的滚动路径来实验验证设计的轨道.

主要方法:

  • 基于所需的无限周期轨迹设计计算算法的开发.
  • 设计的轨道形状的3D打印
  • 试验跟踪和分析印制的轨道的滚动路径.

主要成果:

  • 成功设计和验证能够遵循任意无限周期路径的轨道.
  • 探测出轨道的复杂路径,包括那些接近自身的路径.
  • 对某些轨道形设计的质量中心的间歇上坡运动.

结论:

  • 已经建立了一个用于设计任何无限周期轨迹的滚动体 (轨道体) 的一般方法.
  • 轨道体提供了超越简单曲线路径的滚动运动多样性的显著扩展.
  • 这项研究可能对量子和经典光学产生影响,