Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Buoyancy and Stability for Submerged and Floating Bodies01:11

Buoyancy and Stability for Submerged and Floating Bodies

1.8K
In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
1.8K
One-Degree-of-Freedom System01:24

One-Degree-of-Freedom System

481
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...
481
Muscle Coordination and Action01:24

Muscle Coordination and Action

1.4K
Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction, abduction, and rotation. The human body orchestrates the actions of various muscles working in concert, each with a specific role. Four functional types describe how muscles work together: agonist, antagonist, synergist, and fixator.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement....
1.4K
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

395
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...
395
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

219
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...
219
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

456
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...
456

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Energy-Efficient IoT-Based Light Control System in Smart Indoor Agriculture.

Sensors (Basel, Switzerland)·2023
Same author

A Path-Following Controller for Marine Vehicles Using a Two-Scale Inner-Outer Loop Approach.

Sensors (Basel, Switzerland)·2022
查看所有相关文章

相关实验视频

Updated: Jun 22, 2025

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
06:58

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study

Published on: November 6, 2015

9.4K

安全,坚固,适应性运动控制,用于未完善的海洋机器人.

G Reza Nazmara1, A Pedro Aguiar1

  • 1SYSTEC, ARISE, and Department of Electrical and Computer Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal.

Sensors (Basel, Switzerland)
|June 27, 2024
PubMed
概括

这项研究引入了一种安全的适应性后退控制器,用于未完成的海洋机器人,通过使用简单的传感器和模糊系统来提高对不确定性的稳定性. 该方法确保了实际的有限时间稳定性,以实现更安全的水下航行.

科学领域:

  • 机器人技术 机器人技术 机器人技术
  • 控制系统工程 控制系统工程
  • 海洋工程 海洋工程

背景情况:

  • 在不确定的海洋环境中运行,需要强大而安全的控制系统.
  • 现有的控制策略往往难以保证安全性和稳定性,以应对各种不确定性.
  • 适应性后退控制为应对这些挑战提供了一个有希望的框架.

研究的目的:

  • 设计一个安全的自适应式后退控制系统,用于低功率的海洋机器人.
  • 提高控制系统对动力学和动态不确定性的稳定性.
  • 确保实用的有限时间稳定性,以在不确定的环境中可靠运行.

主要方法:

  • 开发一种自适应的后退控制策略,包括一个模糊的不确定性补偿系统.
  • 用于提高安全性和跟踪的漏斗表面和非线性滑动表面的定义.
  • 利亚普诺夫理论的应用,以正式证明半全球实践有限时间稳定性.

主要成果:

  • 拟议的控制系统在动力学和动态层面都表现出了稳健性.
  • 整合一个简单的模糊系统有效地弥补了系统的不确定性.
  • 在未经调节的海洋机器人上进行的模拟验证了控制设计的有限时间稳定性和安全性.
关键词:
后退步骤控制控制的控制方式有限时间稳定性.漏斗控制控制的漏斗控制方式模糊系统是模糊系统.海军机器人 海军机器人 海军机器人

更多相关视频

Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1
11:22

Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1

Published on: July 11, 2017

8.1K
Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms
10:32

Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms

Published on: August 15, 2016

15.5K

相关实验视频

Last Updated: Jun 22, 2025

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
06:58

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study

Published on: November 6, 2015

9.4K
Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1
11:22

Cardiac Muscle-cell Based Actuator and Self-stabilizing Biorobot - PART 1

Published on: July 11, 2017

8.1K
Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms
10:32

Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms

Published on: August 15, 2016

15.5K

结论:

  • 创新的安全自适应后退控制系统为未完成的海洋机器人提供了强大的解决方案.
  • 使用简单的传感器和模糊系统提高了实用性和效率.
  • 正式证明的稳定性确保了在具有挑战性的海洋条件下可靠的性能.