对于软连续机器人的歇斯底里辅助形状变形
Zheyuan Bi1, Tianchen Ji1, Sanja Dogramadzi1
1School of Electrical and Electronic Engineering, The University of Sheffield, Sheffield, UK.
Science advances
|October 15, 2025
概括
这项研究介绍了一种用于软机器人的新型歇斯底里辅助形状变形 (HasMorph) 方法. 它使用摩擦诱导的歇斯底里,以最小的执行器实现复杂的形状,提高灵活性和导航.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
背景情况:
- 传统的软机器人需要大量的执行器来提高灵巧度,从而导致复杂的设计和控制.
- 现有的方法往往避免歇斯底里,限制了改变形状的能力.
研究的目的:
- 引入和验证软连续机器人的歇斯底里辅助形状变形 (HasMorph) 范式.
- 为了证明如何利用摩擦诱导的歇斯底里能够使复杂的,可逆的形状变化与最小的驱动.
主要方法:
- 通过故意利用摩擦诱导的形状歇斯底里,开发了HasMorph范式.
- 集成HasMorph与尖端转移的软生长机器人,使用一个反向的齐克扎克肌罩机制.
- 创建了机械和动力学模型来分析由摩擦和输入序列控制的形状演变.
主要成果:
- 通过仅使用两个顺序控制的执行器,实现了许多可逆的形状变化.
- 证明了复杂,可逆形态和无摩擦的跟随领导导航.
- 通过实验验验证了敏捷的变形和在非结构化的环境中强大的导航.
结论:
- HasMorph提供了一个可扩展的软机器人设计方法,通过使用最小的组件来实现超冗余软体的细粒度执行.
- 这种模式在微创手术和适应性检查系统中具有潜在的应用,适用于狭窄的空间.
相关概念视频
Morphogenesis
30.2K
Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
30.2K
Plastic Deformation in Circular Shafts
445
When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
445
Deformation in a Circular Shaft
872
One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
872
Plastic Deformations
423
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
423
Plastic Deformations
402
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
402
Temperature Dependent Deformation
363
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
363


