控制和评估一个具有滚动接触关节的人形机器人,在它的下半身上滚动接触关节
Seung Hyeon Bang1, Carlos Gonzalez1, Junhyeok Ahn2
1Department of Aerospace Engineering, University of Texas at Austin, Austin, TX, United States.
Frontiers in robotics and AI
|November 1, 2023
概括
研究人员开发了DRACO 3,这是一个适用于人类环境的人类型机器人. 它的全身控制器 (WBC) 能够实现灵巧的任务和稳定的平衡,经过实验验证.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 人形机器人的人形机器人
- 控制系统 控制系统
背景情况:
- 人形机器人需要先进的能力,以便在人类环境中安全操作.
- 巧妙的操纵和动态平衡是人形机器人设计中的关键挑战.
- 现有的控制策略可能无法完全解决人类形态关节范围和新型运动机制的复杂性.
研究的目的:
- 介绍DRACO 3,一个为人类环境设计的十几岁大小的人形机器人平台.
- 介绍一款针对DRACO 3独特的机械设计而定制的全身控制器 (WBC),包括滚动接触机制.
- 通过对平衡和运动行为进行实证评估,验证机器人的设计和控制器.
主要方法:
- 定制制造的DRACO 3人形机器人平台,具有近距离操作,可增强关节运动.
- 开发一种新的全身控制器 (WBC),其中包括用于滚动运动的内部约束.
- 设计分析使用中心点惯性同otropy (CII) 度量.
- 实验验证质量中心 (CoM) 平衡,一腿平衡和站立平衡的实验验证.
主要成果:
- 德拉科3展示了适合人类环境和人类高度可达能力的形状因子.
- 新的WBC有效地管理复杂的传动和滚动运动,使灵巧的任务成为可能.
- 经验评估证实了设计和控制器在实现稳定的平衡和移动方面的有效性.
结论:
- 人形机器人平台DRACO 3及其相关的全身控制器代表了人形机器人的重大进步.
- 开发的控制器成功地集成了复杂的机械特性,在动态任务中实现了强大的性能.
- 实验验证证证实了该平台在以人为中心的环境中安全有效运行的潜力.
相关概念视频
Rolling Resistance: Problem Solving
350
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
350
One-Degree-of-Freedom System
492
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...
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...
492
Rolling Resistance
297
When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down...
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down...
297
Movement Joints in Buildings
124
Movement joints in buildings are essential design elements that accommodate inevitable motions caused by various factors such as temperature changes, moisture content variations, and structural deflections. These motions, if not considered in design and construction, can lead to unsightly or dangerous damage. Movement joints are incorporated in different forms to manage these stresses and allow materials to move without causing distress.
The simplest type of movement joints, working joints, are...
The simplest type of movement joints, working joints, are...
124
Three-Dimensional Force System:Problem Solving
674
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...
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
674
Support Reactions in Three Dimensions
972
Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:
Ball and Socket Joint is one of the supports allowing free rotation about any axis. This freedom of rotation is...
Ball and Socket Joint is one of the supports allowing free rotation about any axis. This freedom of rotation is...
972


