Results 91 to 100 of about 24,820 (277)
Nonelastomeric Rod Seals for Advanced Hydraulic Systems [PDF]
Advanced high temperature hydraulic system rod sealing requirements can be met by using seals made of nonelastomeric (plastic) materials in applications where elastomers do not have adequate life.
Hady, W. F., Waterman, A. W.
core +2 more sources
Robust control of double-rod and single-rod electrohydrostatic actuators: design and implementation
, 2020 Electrohydrostatic actuators (EHAs) are known for their high power efficiency, reliability, compactness, and easy maintainability. However, uncertainties can cause their performance to degrade or even lead to accidents, especially faults such as actuator internal leakage.
openaire +1 more source
Autonomous Locomotion of Tensegrity Structure on Low‐Temperature Surfaces
Advanced Robotics Research, EarlyView.A low‐temperature responsive tensegrity structure (LRTS) is constructed by integrating low‐responsive temperature liquid crystal elastomer (LCE) cables, nonresponsive cables, and stiff rods. The low phase transition temperature of LCE is achieved by introducing a new liquid crystal mesogen.
Changyue Liu +5 more
wiley +1 more source
Electromechanical control actuator system Patent [PDF]
, 1971 Electromechanical control actuator system using double differential ...
Tschunko, H. F. A.
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Adaptive Robust Motion Control of Electra-Hydraulic Servo Systems Driven by Single-Rod Actuators
IFAC Proceedings Volumes, 1998 Abstract This paper studies the high performance robust motion control of electro-hydraulic servo systems driven by single-rod actuators. In contrast to the double-rod hydraulic actuators studied previously, the two chambers of a single-rod hydraulic actuator have different areas.
Bin Yao, Fanping Bu, George T.C. Chiu
openaire +1 more source
Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots
Advanced Robotics Research, EarlyView.A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun +3 more
wiley +1 more source
Waveguide Photoactuators: Materials, Fabrication, and Applications
Advanced Robotics Research, EarlyView.Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi +4 more
wiley +1 more source
Development of magnetostrictive active members for control of space structures [PDF]
The goal of this Phase 2 Small Business Innovative Research (SBIR) project was to determine the technical feasibility of developing magnetostrictive active members for use as truss elements in space structures.
Avakian, Kevin M. +6 more
core +1 more source
A Soft Robotic Device for Targeted Massage Therapy of Residual Limbs
Advanced Robotics Research, EarlyView.Residual limb edema after amputation can hinder recovery and delay prosthetic fitting. This study presents a soft‐robotic wearable device that delivers sequential compression through pneumatic McKibben actuators. By replicating the principles of manual lymphatic drainage, the device generates controlled mechanotherapeutic pressure patterns, providing a
Maria Grazia Polizzotto +5 more
wiley +1 more source
On Control Synthesis of Hydraulic Servomechanisms in Flight Controls Applications
ActuatorsThis paper presents some of the most significant findings in the design of a hydraulic servomechanism for flight controls, which were primarily achieved by the first author during his activity in an aviation institute. These results are grouped into four
Ioan Ursu, Daniela Enciu, Adrian Toader
doaj +1 more source