Results 131 to 140 of about 8,268 (287)

Tensile strength of pine and ash woods – experimental and numerical study [PDF]

, 2015
The mechanical properties define the behaviour of the timber under external loads, resulting directly from the timber anisotropic and heterogeneity characteristics.
Borges, Paula, Ferreira, Débora, Fonseca, E.M.M., Pinto, Cristiana   +3 more
core  

Modelling and performance enhancement of the fluid coupling interface for hydraulic pressure energy harvesting by superposition of the static mean pressure and pressure fluctuations [PDF]

The monitoring and control of hydraulic systems in an autonomous and battery-free manner is receiving increasing attention to improve both safety and performance.
Bowen, Chris, Liang, Gang, Qie, Haotang, Roscow, James, Tang, Yihu, Xiao, Huifang, Zhu, Ziqi   +6 more
core   +1 more source

From Origami to Bistable and Laminate Structures: A Review for Multifunctional Applications from Structural Perspective of Shape‐Changing Structures

Advanced Intelligent Systems, EarlyView.
This review explores how shape‐changing structures—origami, bistable, and laminate structures—enable multifunctionality in soft robotics and metamaterials. Starting from structural design, it examines core principles, real‐world applications, and ongoing challenges.
Lingchen Kong, Yaoyao Fiona Zhao
wiley   +1 more source

Poly(vinylidene Fluoride)‐Based Ferroelectric Polymers for Electromechanical Transduction: A Systematic Review of Materials and Actuators

Advanced Intelligent Systems, EarlyView.
Poly(vinylidene fluoride) (PVDF)‐based ferroelectric materials exhibit high strains, energy densities and coupling efficiencies, appealing for diverse applications requiring smart material actuators. This work reviews electromechanical transduction in PVDF‐based polymers and their modifications, implementation in actuators, and functional devices ...
Giulio Gallucci, Andres Hunt
wiley   +1 more source

A magnetorheological elastomer-based hybrid vibration isolation system with semi-active control and quasi-zero stiffness performance [PDF]

The quasi-zero stiffness (QZS) vibration isolation system suffers from conflicts between low-frequency and mid-to-high-frequency isolation, despite having outstanding low-frequency vibration isolation performance.
He, Junfeng, Lin, Yu, Liu, Chengxiang, Liu, Jie, Wen, Guilin   +4 more
core   +1 more source

Myoelectric Origami‐Based Soft Robotic Knee Exoskeleton to Enhance Sit‐to‐Stand Assistance in Elderly Populations

Advanced Intelligent Systems, EarlyView.
This work presents a lightweight Miura‐origami soft knee exoskeleton powered by vacuum actuation and integrated with a multimodal physiological intent‐recognition system, providing real‐time assistance during sit‐to‐stand movement to reduce muscle effort and improve user comfort.
Yuchuan Jia, Xingjian Ye, Xuanyi Zhou, Yong Ling, Daniela Rus, Chen‐Hua Yeow   +5 more
wiley   +1 more source

Systematic Study of PDMS Optical Waveguides for Pressure Sensing Using Design of Experiments

Journal of Applied Polymer Science, EarlyView.
A response surface methodology was used to systematically evaluate the impact of mix ratio and cure conditions on PDMS optical waveguide properties for pressure sensing. Mix ratio significantly influenced compression sensitivity, compressive modulus, and propagation loss, while cure temperature primarily affected refractive index.
Camila A. Zimmermann, Bora Ung
wiley   +1 more source

Research on a nonlinear quasi-zero stiffness vibration isolator with a vibration absorber. [PDF]

Sci Prog, 2020
Li SH, Liu N, Ding H.
europepmc   +1 more source

Design and test of a quasi-zero stiffness metastructure based on the preshaped beams for low-frequency vibration isolation

Materials & Design
The present study introduces a novel QZS metastructure, which is based on monolithic preshaped beams that draw inspiration from the snap-through behavior of cosine beams.
Zhimin Zhang, Zhuoyuan Qi, Diankun Pan
doaj   +1 more source

The Mechanical Behavior of Dual TPU/Nylon 3D Printed Parts

Journal of Applied Polymer Science, EarlyView.
Graphical abstract illustrating dual‐material fused filament fabrication (FFF) of TPU and nylon, highlighting different material configurations (nylon outer/TPU core, TPU outer/nylon core, and alternating layers), the role of infill geometry in load transfer and ductility, and the resulting tensile and flexural performance trade‐offs between strength ...
Liam O'Connor
wiley   +1 more source