Results 41 to 50 of about 57,353 (294)
Hemispherical Cell-Inspired Soft Actuator
Frontiers in Bioengineering and Biotechnology, 2020 As soft robots have been popular, interest in soft actuators is also increasing. In particular, new types of actuators have been proposed through biomimetics.
Kahye Song +3 more
doaj +1 more source
Analytical expressions for optimum alignment modes of highly segmented mirrors
, 2004 The major sources causing deterioration of optical quality in extremely large optical telescopes are misadjustments of the mirrors, deformations of monolithic mirrors, and misalignments of segments in segmented mirrors. For active optics corrections, all
Cantrill CD, L. Noethe, Troy M
core +1 more source
Modelling of an actuated elastic swimmer [PDF]
Journal of Fluid Mechanics, 2017 We study the force production dynamics of undulating elastic plates as a model for fish-like inertial swimmers. Using a beam model coupled with Lighthill’s large-amplitude elongated-body theory, we explore different localised actuations at one extremity of the plate (heaving, pitching and a combination of both) in order to quantify the reactive and ...
Piñeirua, M. +2 more
openaire +4 more sources
State observer control for robotic series elastic actuators
Revista Colombiana de Tecnologías de AvanzadaThis implementation shows the results through a control state observer strategy for a series elastic actuator (SEA) of motorized robotic limbs, with the purpose of evaluate the disturbance response with regard to convetional PID controller.
Frank Nixon Giraldo Ramos
doaj +1 more source
Characterization of Control-Dependent Variable Stiffness Behavior in Discrete Muscle-Like Actuators
Applied Sciences, 2018 This paper presents the modeling, characterization and validation for a discrete muscle-like actuator system composed of individual on–off motor units with complex dynamics inherent to the architecture.
Caleb Fuller, Joshua Schultz
doaj +1 more source
Increasing the Force Exertion of a Soft Actuator Using Externally Attachable Inter-Chamber Plates
Actuators, 2023 The application of soft actuators has become increasingly common in wearable devices. In this study, we investigated the force characteristics of soft actuators made entirely of elastic material, when equipped with solid external chamber plates of ...
Attila Mészáros, József Sárosi
doaj +1 more source
Releasing systems for aerospace industry based upon shape memory alloys: Characterization of materials for actuators [PDF]
, 2018 Releasing and deployment maneuvers carried out during space satellites launching are usually performed by utilizing pyrotechnics loads. However, it is considered convenient to replace this technique by others not requiring explosives (Non Explosive ...
Glücksberg, Andrés +2 more
core +4 more sources
Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones
Advanced Engineering Materials, EarlyView.A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell +3 more
wiley +1 more source
Conceptual hermetically sealed elbow actuator [PDF]
, 1968 Electrically or hydraulically powered, hermetically sealed angular or rotary actuator deflects mechanical members over a range of plus or minus 180 degrees.
Wuenscher, H. F.
core +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source