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相关概念视频

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

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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.
Here, in order to determine the magnitude of velocity and acceleration for point...
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Three-Dimensional Force System:Problem Solving01:30

Three-Dimensional Force System:Problem Solving

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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.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
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Two-Dimensional Force System: Problem Solving01:29

Two-Dimensional Force System: Problem Solving

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Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector analysis and force equilibrium, one can determine the effect of multiple forces acting on an object in a two-dimensional space.
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
679
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

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Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
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Field Application of Global Positioning System01:28

Field Application of Global Positioning System

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The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
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Relative Motion Analysis using Rotating Axes01:25

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Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
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在动态环境中使用改进的人工潜力场方法追踪轨迹和避开障碍物.

Long Di1, Naiwei Huang1, Jiaqi He1

  • 1Zhaoqing Power Supply Bureau, Guangdong Power Grid Co., Ltd., Zhaoqing, Guangdong, China.

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概括

这项研究引入了一个新的实时轨迹规划框架,用于机器人. 它增强了人工潜力场 (APF),以改善动态环境中的路径跟踪和障碍回避.

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科学领域:

  • 机器人技术 机器人技术 机器人技术
  • 人工智能的人工智能
  • 控制系统 控制系统

背景情况:

  • 机器人需要精确的轨迹跟踪和在动态环境中避开障碍物.
  • 现有的方法难以平衡跟踪路径的准确性和实时避开障碍.

研究的目的:

  • 为机器人提出一个实时轨迹规划框架.
  • 为了应对同时准确的轨迹跟踪和动态避难障碍的挑战.
  • 在非结构化环境中提高机器人的安全性和性能.

主要方法:

  • 一种增强的人工潜力场 (APF) 方法,使用虚拟目标点来实现路径精度.
  • 一个动态的障碍驱逐模型,结合速度和加速,以积极避免.
  • 一个使用运动模式分析的概率障碍运动预测框架.

主要成果:

  • 与改进的APF方法相比,轨迹跟踪错误减少了55.8%.
  • 与动态运动原始体 (DMP) 基线相比,追踪误差下降了41.5%.
  • 在复杂的,模拟的动态障碍场景中验证了优越的强度和安全性能.

结论:

  • 拟议的框架有效地平衡了轨迹跟踪和避开障碍的方法.
  • 预测运动分析的整合提高了机器人的适应性和安全性.
  • 该方法显示了与现有的APF和DMP方法相比的显著改进.