Study on Bending Performance of Cosine Negative Poisson′s Ratio Soft Driver

胡旭初; 付涛; 李斌

doi:10.13433/j.cnki.1003-8728.20230147

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Study on Bending Performance of Cosine Negative Poisson′s Ratio Soft Driver

更新时间：2026-07-10

- Study on Bending Performance of Cosine Negative Poisson′s Ratio Soft Driver
- Mechanical Science and Technology for Aerospace Engineering Vol. 43, Issue 11, Pages: 1908-1914(2024)
- 作者机构：
  
  昆明理工大学机构机电工程学院振动噪声监测与控制研究所,昆明,650550
- 作者简介：
- 基金信息：
- DOI：10.13433/j.cnki.1003-8728.20230147
  CLC： TH122
- Published：2024
- 稿件说明：
移动端阅览
胡旭初, 付涛, 李斌. Study on Bending Performance of Cosine Negative Poisson′s Ratio Soft Driver[J]. Mechanical Science and Technology for Aerospace Engineering, 2024, 43(11): 1908-1914.
DOI：

胡旭初, 付涛, 李斌. Study on Bending Performance of Cosine Negative Poisson′s Ratio Soft Driver[J]. Mechanical Science and Technology for Aerospace Engineering, 2024, 43(11): 1908-1914. DOI： 10.13433/j.cnki.1003-8728.20230147.

摘要

介绍了一种基于余弦型圆弧内凹负泊松比胞元的具备软行为、低复杂性的软体驱动器，由具有负泊松比（NPR）胞元与正泊松比（PPR）胞元的三维嵌入式管状结构及气动橡胶管组成。通过ABAQUS有限元仿真，实现气动橡胶管在充气膨胀时管状结构的弯曲功能。通过控制变量，将驱动器的纵向胞元数目、超材料结构厚度、气动橡胶管厚度等结构参数在不同内壁压强下对最大弯曲角度的影响差异进行了对比分析，总结了上述结构参数对最大弯曲角度影响的趋势，为新型软体驱动器的结构设计及应用提供了替代方案。

Abstract

A soft body actuator with soft behavior and low complexity is introduced based on the cosine type circular concave negative Poisson's ratio cell element. The actuator consists of a three-dimensional embedded tubular structure with negative Poisson's ratio (NPR) cell element and positive Poisson′s ratio (PPR) cell element and a pneumatic rubber tube. The bending function of the tubular structure in the inflation and expansion of the pneumatic rubber tube is realized by using the ABAQUS finite element simulation. The differences in the influence of the structural parameters such as number of longitudinal cytons of the actuator

thickness of the metamaterial structure and thickness of the pneumatic rubber tube on the maximum bending angle under different inner wall pressures are compared and analyzed by controlling the variables. Meanwhile

the trend of the influence of the above structural parameters on the maximum bending angle is summarized

which provides an alternative solution for the structural design and application of the new flexible actuator.

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