从人手关节到连续机器人:关节表面形态如何塑造基于模板的设计中的灵活性和稳定性
Chendi Liang1, Yu Wang1, Yanzhen Liu1
1Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing, P.R. China, Beijing, 100091, CHINA.
Bioinspiration & biomimetics
|May 15, 2025
概括
受人类指的启发,研究人员开发了具有独特关节的连续操纵器. 坐关节 (SJ) 设计增强了刚性和控制精度,同时保持了连续机器人的灵活性.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 机械工程 机械工程
- 生物力学 生物力学
背景情况:
- 连续机器人设计面临着灵活性和刚性之间的权衡,影响控制精度.
- 人类指的多关节结构平衡了灵巧性和稳定性,提供了一个仿生模型.
- 现有的连续操纵器往往难以实现高灵活性和刚性.
研究的目的:
- 设计和评估由人类指的关节结构启发的新型连续操纵器.
- 调查不同关节高斯曲率对操纵器性能的影响.
- 为了在连续机器人设计中实现灵活性和刚性之间的平衡.
主要方法:
- 设计了三种连续操纵器类型:单轴接头 (UJ),球接头 (BSJ) 和接头 (SJ).
- 使用模板表面设计来隔离高斯曲率的影响.
- 进行了动态建模,有限元模拟,工作空间测量和刚度实验.
主要成果:
- SJ操纵器的工作空间是 UJ 的 1.69 倍,是 BSJ 的 0.73 倍.
- 与BSJ相比,SJ在刚性方面取得了显著的改进:与BSJ相比,扭曲率高达5.51倍,曲率高达2.68倍.
- 与 UJ 相比,SJ 显示了 3.73 倍的扭曲和 2.44 倍的曲刚度增强.
结论:
- 马关节 (SJ) 连续结构设计有效地提高了硬度,同时保持了灵活性.
- 这种仿生方法为开发具有平衡性能的先进连续机器人提供了一个有前途的战略.
- 这些发现为实现机器人系统中卓越的灵巧性和稳定性提供了新的设计范式.
相关概念视频
Structural Joints: Synovial Joints
3.2K
Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
3.2K
Introduction to Joints
2.7K
The adult human body usually has 206 bones, and except for the hyoid bone in the neck, each bone is connected to at least one other bone. Joints are the location where bones come together. Many joints allow for movement between the bones. At these joints, the articulating surfaces of the adjacent bones can move smoothly against each other. However, the bones of other joints may be joined by connective tissue or cartilage. These joints are designed for stability and provide little or no...
2.7K
Joints
32.5K
Joints, also called articulations or articular surfaces, are points at which ligaments or other tissues connect adjacent bones. Joints permit movement and stability, and can be classified based on their structure or function.
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...
32.5K
Movement Joints in Buildings
96
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...
96
Development of the Limb Synovial Joints
1.2K
Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilage, and connective tissues of the body is called mesenchyme.
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
1.2K
Method of Joints: Problem Solving II
476
Consider a truss structure with frictionless joints fixed to a wall and roller support. If a force of 150 N is applied to joint A, the forces in each member of the truss can be determined using the method of joints.
476


