Modelling of Modular Soft Robots: From a Single to Multiple Building Blocks

Mohamed G. B. Atia, Abdelkhalick Mohammad, Andres Gameros Madrigal, Dragos Axinte, Iain Wright

Research output: Contribution to journalArticlepeer-review

Abstract

Despite the advances in soft robots, their modelling is still one of the research challenges due to the complexity and non-linearity of their soft nature. A novel design of reconfigurable soft robots was recently introduced to bring more maturity to the field of soft robots. Here, a modelling study of the building blocks and the assembled soft robot is developed for a deeper understanding of the system and for predicting their behaviours. The model is validated using several sets of individual and multiple building blocks and the results show good tracking between the model and the experiments with reasonable errors. Towards adopting the model in robotic applications, a grasping setup of 2 assembled soft fingers is demonstrated where the model is used to predict the grasping force and compared to feedback sensing. The force prediction reveals the adaptability of the model and its robustness.

Original languageEnglish
Article number104622
JournalRobotics and Autonomous Systems
Volume174
Early online date11 Jan 2024
DOIs
Publication statusPublished - 1 Apr 2024

Keywords

  • Building blocks
  • Dielectric elastomer actuators
  • Modelling
  • Modularity
  • Reconfigurability
  • Soft robotics

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