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相关概念视频

Temperature Dependent Deformation01:12

Temperature Dependent Deformation

367
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...
367
Deformation of Member under Multiple Loadings01:11

Deformation of Member under Multiple Loadings

445
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
445
Plastic Deformations01:19

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

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相关实验视频

Updated: Jan 18, 2026

Fabrication Process of Silicone-based Dielectric Elastomer Actuators
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一个可编程的软电热驱动器,基于多重变形的功能分级结构.

Fan Bu1, Feng Zhu1, Zhengyan Zhang2

  • 1School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China.

Polymers
|September 13, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了一个可编程的软电热执行器,使用分级聚甲基 (PDMS) /多壁碳纳米管 (MWCNTs) 复合材料. 这种新的设计增强了稳定性,并为软机器人和可穿戴系统提供了多功能,可编程的曲.

关键词:
功能分级的结构结构的功能分级结构.多重变形的多个变形.可编程软电热执行器

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相关实验视频

Last Updated: Jan 18, 2026

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科学领域:

  • 材料科学 材料科学 材料科学
  • 机器人工程 机器人工程 机器人工程
  • 软件系统软件系统

背景情况:

  • 软电热执行器对于软机器人和可穿戴设备至关重要,但传统设计面临着稳定性和多功能性限制.
  • 接口故障和受限制的变形模式阻碍了同质或分层复合执行器的性能.

研究的目的:

  • 提出一个可编程的软电热执行器,具有功能分级的结构.
  • 通过提高稳定性和执行多功能性来克服传统执行器的局限性.

主要方法:

  • 一种功能分级的聚二甲基 (PDMS) /多壁碳纳米管 (MWCNTs) 复合物的制造.
  • 嵌入式EGaIn导电路的集成,用于可编程的执行.
  • 风病学,机械和驱动性能表征.

主要成果:

  • 功能分级结构增强机械性能 (粘度,模量,抗拉强度),增加MWCNT含量.
  • 实现了卓越的执行性能:曲角度高达117°,响应快 (8秒),耐用性高 (100周期).
  • 通过电路设计证明可编程和可重新配置的L形,U形和V形曲变形.

结论:

  • 功能分级复合执行器为软系统中可编程,多式模式变形提供了一个新的策略.
  • 开发的执行器显示了适应性机器人,智能设备和人机界面的应用潜力.
  • 这项工作推动了稳定,多功能软电热执行器的设计和应用.