Abstract

Artificial muscles and electric motors found in autonomous robots and prosthetic limbs are typically battery-powered, which severely restricts the duration of their performance and can necessitate long inactivity during battery recharge. To help solve these problems, we demonstrated two types of artificial muscles that convert the chemical energy of high–energy-density fuels to mechanical energy. The first type stores electrical charge and uses changes in stored charge for mechanical actuation. In contrast with electrically powered electrochemical muscles, only half of the actuator cycle is electrochemical. The second type of fuel-powered muscle provides a demonstrated actuator stroke and power density comparable to those of natural skeletal muscle and generated stresses that are over a hundred times higher.

Keywords

Artificial muscleBattery (electricity)Mechanical energyActuatorElectric potential energyChemical energyAutomotive engineeringPower densityEnergy storagePower (physics)Leg muscleMaterials scienceComputer scienceBiomedical engineeringChemistryEngineeringPhysicsPhysical medicine and rehabilitationArtificial intelligenceMedicine

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Publication Info

Year
2006
Type
article
Volume
311
Issue
5767
Pages
1580-1583
Citations
150
Access
Closed

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Cite This

Von Howard Ebron, Zhiwei Yang, Daniel J. Seyer et al. (2006). Fuel-Powered Artificial Muscles. Science , 311 (5767) , 1580-1583. https://doi.org/10.1126/science.1120182

Identifiers

DOI
10.1126/science.1120182