نتایج جستجو برای: artificial muscles

تعداد نتایج: 341195  

Journal: :Science China. Materials 2022

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...

2005
Koh Hosoda Takashi Takuma

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 ...

2014
Andres Punning Kwang J. Kim Viljar Palmre Frédéric Vidal Cédric Plesse Nicolas Festin Ali Maziz Kinji Asaka Takushi Sugino Gursel Alici Geoff Spinks Gordon Wallace Indrek Must Inga Põldsalu Veiko Vunder Rauno Temmer Karl Kruusamäe Janno Torop Friedrich Kaasik Pille Rinne Urmas Johanson Anna-Liisa Peikolainen Tarmo Tamm Alvo Aabloo

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...

2000
Yoseph Bar-Cohen

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...

2014
Viljar Palmre David Pugal Kwang J. Kim Kam K. Leang Kinji Asaka Alvo Aabloo

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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