Results 61 to 70 of about 36,808 (296)
Design Considerations for a Highly Segmented Mirror [PDF]
, 2003 Design issues for a 30-m highly segmented mirror are explored, with emphasis on parametric models of simple, inexpensive segments. A mirror with many small segments offers cost savings through quantity production and permits high-order active and ...
Padin, Stephen
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
IEEE Access, 2021 Stiffness adjustability is one of the key characteristics that help humans achieve safe and reliable motions. This paper aims to realize the simultaneous position-stiffness control of an antagonistic joint driven by a type of super-coiled polymer (SCP ...
Tuan Luong +7 more
doaj +1 more source
Multiparameter actuation of a neutrally-stable shell: a flexible gear-less motor
, 2017 We have designed and tested experimentally a morphing structure consisting of a neutrally stable thin cylindrical shell driven by a multiparameter piezoelectric actuation.
Hamouche, Walid +3 more
core +2 more sources
A novel energy-efficient rotational variable stiffness actuator
2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011 This paper presents the working principle, the design and realization of a novel rotational variable stiffness actuator, whose stiffness can be varied independently of its output angular position. This actuator is energy-efficient, meaning that the stiffness of the actuator can be varied by keeping constant the internal stored energy of the actuator ...
Rao, S. +2 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
Design Optimization of a Variable Stiffness Actuator for Knee Exoskeleton Application
IEEE Access, 2023 The field of wearable devices and exoskeletons for rehabilitation and assistance is one of the main fields where variable stiffness actuators (VSAs) are continuously incorporated.
Ahmad Aljarah +3 more
doaj +1 more source
Co-Design Strategies for Optimal Variable Stiffness Actuation
IEEE/ASME Transactions on Mechatronics, 2017 Robotic systems powered by variable stiffness actuators (VSAs) provide important benefits for applications that demand safety, performance, and energy-efficiency. Being multidisciplinary systems, performance of such devices cannot be fully exploited unless co-design techniques that account for their inherent design couplings are employed for their ...
Abdullah Kamadan +2 more
openaire +3 more sources
Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release
Advanced Engineering Materials, EarlyView.Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro +3 more
wiley +1 more source
Mathematics, 2022 Variable stiffness actuators (VSA) have attracted much attention because of their potential for human-like interaction behaviors. This paper devotes to improving the VSA’s versatility.
Fanghua Mei, Shusheng Bi, Bianhong Li
doaj +1 more source