Bioinspired Origami Morphing Limbs for Amphibious Robot Locomotion

Yuxuan Li, Siyu Mei, Rensong Yin, Chong Liu, Hui Chen · MDPI AG · 2026

This study proposes a bioinspired origami morphing limb for amphibious robots that adapts between terrestrial and aquatic locomotion modes.

High AI ConfidenceStrong SourceWorking PrototypeEarly Research

Plain English summary

The research introduces a new type of limb for amphibious robots that can change shape to suit different environments. It uses a bioinspired origami design that allows the limb to transform from a cylindrical shape for land movement to a flat shape for swimming. The study includes a prototype that demonstrates this transformation and various locomotion modes.

Why this matters

This innovation addresses the challenge of creating efficient amphibious robots that can operate effectively on both land and water without the need for separate propulsion systems. By reducing structural redundancy and improving performance, this research could enhance the capabilities of robots used in various applications, such as search and rescue or environmental monitoring.

Key findings

  • Proposed a bioinspired origami morphing limb for amphibious robots.
  • Limb transforms between cylindrical and planar configurations.
  • Introduced a vertex-splitting topology to enhance stability.
  • Developed a kinematic model to relate active and passive folding.
  • Prototype demonstrated effective locomotion in multiple modes.

What's new

The use of a bioinspired origami design to create a morphing limb that effectively transitions between land and water locomotion is a new approach.

Limitations

The abstract does not provide quantitative performance metrics or detailed analysis of the prototype's capabilities in various environments.

Commercial context

The research is at the prototype stage and lacks commercial availability or detailed market analysis.

Publication

Publisher
MDPI AG
Publication date
July 17, 2026
Research type
Paper
License
https://creativecommons.org/licenses/by/4.0/

Tags

More on Morphing Structures

See all →
Morphing Structurespaper· Aug 1, 2026

Flutter Analysis of a Morphing Wing Considering Fluid–Thermal–Structure Coupling

This study conducts a flutter analysis of morphing wings, revealing critical insights into stability under varying conditions.

Tianxing Chen, Kun Guo +5 · American Institute of Aeronautics and Astronautics (AIAA)Simulation
Morphing Structurespaper· Jun 1, 2026

An Approach to Morphing Structure Control based on Real-time Displacement Reconstruction

This paper presents a novel framework for real-time control of morphing structures using in-situ strain-sensor data.

R Roy, C Surace +1 · IOP PublishingSimulation
Morphing Structurespaper· Apr 15, 2026

Novel Airfoil Morphing Concept with Composite Material Skin

A novel airfoil morphing concept using composite materials shows significant potential for enhancing aircraft performance.

Egor Ukolov, Pedro V. Gamboa · American Institute of Aeronautics and Astronautics (AIAA)Working Prototype
Morphing Structurespreprint· Sep 16, 2025

Quasi-static shape control of soft, morphing structures

A general quasi-static shape-control framework for soft morphing structures is developed, analyzing how large deformations and compliance affect equilibrium topology and stability, illustrated with a snap-through-prone Kirchhoff rod.

Eszter Fehér, András Árpád Sipos +1 · arXivSimulation
Morphing Structurespaper· Sep 2, 2025

2D-to-3D transformation of ring origami via snap-folding instabilities

By adding out-of-plane natural curvature to ring-origami rods, 2D rings can spontaneously snap into designed 3D equilibrium shapes with controllable mono- or multistability.

Lu Lu, Sophie Leanza +2 · Journal of the Mechanics and Physics of Solids 206 (2026) 106404Laboratory Research
Morphing Structurespaper· Jun 5, 2025

A Pillbug-Inspired Morphing Mechanism Covered with Sliding Shells

A pillbug-inspired morphing mechanism with sliding shells is synthesized and modeled to enable a robot to curl for rolling downhill and spread for straight-line motion.

Jieyu Wang, Yingzhong Tian +5 · Advances in Mechanism and Machine Science and Engineering in China, Springer Nature Singapore, pp.423-435, 2025, Lecture Notes in Mechanical EngineeringWorking Prototype
Method note: Summaries and ratings on this page are generated by AI from the abstract only. Read the original paper for full context. · Model: gpt-4o-mini-2024-07-18