Fabric Pneumatic Artificial Muscles Based on the Drawstring Principle
Chendong Liu, Dapeng Yang, Yiming Dai, Li Jiang, Hong Liu · arXiv · 2026
This research introduces a novel drawstring fabric pneumatic artificial muscle that enhances compactness and performance for robotics applications.
Plain English summary
Why this matters
Key findings
- The drawstring fabric pneumatic artificial muscle (DPAM) produces no extra radial deformation during contraction.
- It has a load capacity over 800 times its self-weight.
- The maximum contraction ratio is 44%.
- Power density reaches up to 4.98 kW/kg.
- The DPAM can be easily expanded within a two-dimensional plane.
What's new
The DPAM design inspired by textile structures significantly improves the compactness and performance of pneumatic artificial muscles.
Limitations
The abstract does not provide details on long-term durability or specific testing conditions for the DPAM.
Commercial context
The technology is still in the research phase and has not yet been commercialized.
Publication
- Publisher
- arXiv
- Publication date
- July 21, 2026
- Research type
- Preprint
- arXiv
- 2607.18641
- Access
- open
Tags
More on Soft Robotics Materials
See all →Hand Rehabilitation Dynamic Splint with Variable Force via Pneumatic Artificial Muscle Actuators
A dynamic hand splint using pneumatic actuators shows promise for improving rehabilitation through controllable force during exercises.
Multi-Mode Pneumatic Artificial Muscles Driven by Hybrid Positive-Negative Pressure
The study presents a new type of inflatable artificial muscle that can be programmed for various movements, enhancing soft robotics applications.
Fabric Pneumatic Artificial Muscle-Based Head-Neck Exosuit: Design, Modeling, and Evaluation
This research presents a fabric pneumatic artificial muscle-based exosuit designed to assist head-neck mobility, particularly for patients with neurological disorders.
Twisting Tube Artificial Muscle (TTAM) and Its Application in Agonist and Antagonist Drive
The Twisting Tube Artificial Muscle (TTAM) offers a novel approach to pneumatic artificial muscles, enhancing mobility and performance in robotic applications.
Programmable Telescopic Soft Pneumatic Actuators for Deployable and Shape Morphing Soft Robots
Programmable Telescopic Soft Pneumatic Actuators (PTSPAs) use a parameterized geometry generator and systematic parameter exploration to enable deployable, shape-morphing soft robot locomotion in confined spaces.
Cnidaria-Inspired Morphing Mechanism for Underwater Robot: A Soft Tectonics Approach
The study presents a cnidaria-inspired soft robot that mimics the wiggling behavior of sea anemones for underwater exploration.
Recently published
Latest research →A modular block-based acoustic metamaterial absorber with coiled cavities for enhanced sound absorption
This research presents a modular acoustic metamaterial with tunable sound absorption capabilities for low-frequency applications.
A Comprehensive Study on the Development of Stimuli-Responsive Smart Polymer Systems for Controlled Drug Delivery
This study highlights the potential of multi-stimulus responsive smart polymers for enhanced drug delivery systems.
Bio-inspired re-entrant honeycomb metamaterial with programmable dual-plateau mechanical response
A bio-inspired re-entrant honeycomb mechanical metamaterial is described as having a programmable dual-plateau mechanical response.
Modelling the thermo-mechanical responses and shape recovery performance of particle-reinforced shape memory polymer composites in cold and hot programming
A study focused on modeling thermo-mechanical behavior and shape recovery of particle-reinforced shape-memory polymer composites when programmed in cold versus hot conditions.