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Ryota Kobayashi

7 accepted papers

2025

McKibben Muscle With Elastic Thread Embedded in Parallel Extending Range of Motion of Muscle-Driven Robots

RA-L 2025

The McKibben muscle, widely employed in antagonistic drive robots, exhibits approximately 20% contraction under pneumatic pressure but lacks crucial passive extensibility. Previous attempts to achieve passive extensibility resulted in reduced overall contraction ratios due to the series connection o

Cited by 0SourceScholar
2024

Enhancement of Thin McKibben Muscle Durability Under Repetitive Actuation in a Bent State

RA-L 2024

The McKibben muscle can produce a high force-to-mass ratio, beneficial for various applications in the soft mechatronics field. The thin McKibben muscle, which has a small diameter, has the advantage of a high force-to-mass ratio and sufficient flexibility for use in a bent state. This flexibility p

Cited by 5SourceScholar
2024

Multimodal Strain Sensing System for Shape Recognition of Tensegrity Structures by Combining Traditional Regression and Deep Learning Approaches

RA-L 2024

A tensegrity-based system is a promising approach for dynamic exploration of uneven, unpredictable, and confined environments. However, implementing such systems presents challenges in state recognition. In this study, we introduce a 6-strut tensegrity structure integrated with 24 multimodal strain

Cited by 29SourceScholar
2023

Active-Bending Six-Bar Tensegrity Modular Robot Driven by Thin Artificial Muscles

RA-L 2023

Significant progress has been achieved in the development of tensegrity robots with rolling capabilities. However, because rolling robots operate passively due to gravity, they are limited to certain environments. So, our aim is to enhance the versatility of tensegrity robots by modularizing a six-b

Cited by 13SourceScholar
2023

Large Torsion Thin Artificial Muscles Tensegrity Structure for Twist Manipulation

RA-L 2023

Tensegrity structures have been actively studied in recent years because they are lightweight, compliant, and flexible, which are properties not typically found in conventional robots. This structure can be modularized to create soft robots that operate in unknown environments such as cave or space

Cited by 25SourceScholar
2022

Soft Tensegrity Robot Driven by Thin Artificial Muscles for the Exploration of Unknown Spatial Configurations

RA-L 2022

The primary role of a robot exploring an unknown space is to investigate the state and the spatial shape of the environment. We have designed a soft robot that aims to move forward in an unknown space as it recognizes and adapts to the spatial shape of the environment. We previously reported that so

Cited by 53SourceScholar
2019

Effective and Stable Neuron Model Optimization Based on Aggregated CMA-ES

ICASSP 2019accepted

Computer simulations have facilitated our understanding of the dynamic behavior of the brain and the effect of the medical treatment such as deep brain stimulation. For improving the simulation model, it is essential to develop a method for optimizing parameters of a neuron model from available expe…

Cited by 0SourceScholar