نتایج جستجو برای: artificial muscles
تعداد نتایج: 341195 فیلتر نتایج به سال:
Thermo-responsive shape memory hydrogels generally achieve fixation at low temperatures, and recovery high temperatures. However, these hydro-gels usually suffer from poor mechanical properties. Herein, we present a unique poly(acrylic acid)/calcium acetate hydrogel with cold-induced performances as ultrastrong artificial muscles. Since the groups could form aggregate temperatures thus induce a...
A joint driving mechanism with antagonistic pairs of muscles is supposed to be essential for humans and animals to realize various kinds of locomotion such as walking, running, and jumping. This paper describes design and control of a biped robot “Pneu–Man” whose joints are driven by antagonistic pairs of McKibben artificial muscles. Since the body is welldesigned for walking, required control ...
A large-scale effort was carried out to test the performance of seven types of ionic electroactive polymer (IEAP) actuators in space-hazardous environmental factors in laboratory conditions. The results substantiate that the IEAP materials are tolerant to long-term freezing and vacuum environments as well as ionizing Gamma-, X-ray, and UV radiation at the levels corresponding to low Earth orbit...
For many years, electroactive polymers (EAP) received relatively little attention due to the small number of available materials and their limited actuation capability. The recent emergence of EAP materials with large displacement response changed the paradigm of these materials and their potential capability. The main attractive characteristic of EAP is their operational similarity to biologic...
Ionic polymer-metal composites (IPMCs) have recently received tremendous interest as soft biomimetic actuators and sensors in various bioengineering and human affinity applications, such as artificial muscles and actuators, aquatic propulsors, robotic end-effectors, and active catheters. Main challenges in developing biomimetic actuators are the attainment of high strain and actuation force at ...
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