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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

379
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...
379
Angle of Twist: Problem Solving01:13

Angle of Twist: Problem Solving

250
An electric motor applies a torque of 700 N·m to an aluminum shaft, triggering a stable rotation. Two pulleys, B and C, are subjected to torques of 300 N·m and 400 N·m, respectively. The modulus of rigidity is provided as 25 GPa. With the knowledge of the length and diameter of each segment, the twist angle between the two pulleys can be computed. First, a section cut is made between pulleys B and C, and the cut cross-section is analyzed using a free-body diagram. Given that the...
250
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

439
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.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
439
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

444
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
444
Relative Motion Analysis using Rotating Axes - Acceleration01:22

Relative Motion Analysis using Rotating Axes - Acceleration

316
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. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...
316

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相关实验视频

Updated: May 21, 2025

Magnetic Tweezers for the Measurement of Twist and Torque
11:41

Magnetic Tweezers for the Measurement of Twist and Torque

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根据事件触发算法,针对不确定的机器人操纵器进行自适应超扭曲跟踪.

Yajun Ma1,2, Hui Zhao3, Tao Li4

  • 1School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China.

Sensors (Basel, Switzerland)
|March 17, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了机器人操纵器的事件触发自适应控制,提高了稳定性和性能. 这种方法通过只在必要时更新控制信号来降低计算负载,确保高效运行.

关键词:
泽诺免费执行适应性超级扭转方式事件触发的控制是事件触发的.机器人操纵器 机器人操纵器

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相关实验视频

Last Updated: May 21, 2025

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科学领域:

  • 机器人技术 机器人技术 机器人技术
  • 控制系统 控制系统
  • 非线性动力学是一种非线性动力学.

背景情况:

  • 机器人操纵器容易受到外部不确定性和干扰,影响其性能和稳定性.
  • 对于不确定的系统,传统的周期性控制方法可能是计算密集型和低效的.

研究的目的:

  • 为不确定的机器人操纵者开发一个事件触发的控制方案.
  • 为了提高系统跟踪性能,并保证强大的稳定性.
  • 与传统的控制方法相比,降低计算成本.

主要方法:

  • 针对多变量二阶非线性系统,提出了一种事件触发的自适应超扭转控制 (ETASTC) 方法.
  • 控制信号根据系统稳定性要求进行更新,避免频繁的周期执行.
  • 触发序列的Zeno-free执行被严格证明.

主要成果:

  • 拟议的ETASTC方法确保了系统跟踪性能和对不确定的机器人操纵器的稳定性.
  • 数字模拟和实验研究表明,在计算成本方面有显著的节省.
  • 该方法成功地保持了机器人系统所需的性能.

结论:

  • 事件触发的自适应超扭转控制是对不确定的机器人操纵系统的有效策略.
  • 这种方法为传统的周期性控制方法提供了一个计算效率高的替代方案.
  • ETASTC 方法保证了性能和稳定性,同时最大限度地减少了资源利用.