Results 101 to 110 of about 14,429 (257)

Strain‐Activated Mechanical Metamaterial With Programmable Dual‐Phase Stiffness and Enhanced Energy Absorption

open access: yesAdvanced Materials Technologies, EarlyView.
A strain‐activated mechanical metamaterial is developed to achieve programmable dual‐phase stiffness through an intrinsic geometric locking mechanism. Finite element modeling and parametric analysis identify the key design parameters governing activation strain, stiffness transition, and energy absorption.
Ramin Yousefi‐Nooraie   +3 more
wiley   +1 more source

Simulation Study on Compound Percussion Frequency Matching Characteristics

open access: yesShiyou jixie, 2019
There are many researches on the traditional axial impact rock breaking and torsional impact rock breaking mechanism. But researches on the rock breaking mechanism of compound percussion drilling are few and are still in infancy state.
Li Yumei   +4 more
doaj  

Strong Coupling in all‐Polymer Planar Microcavities

open access: yesAdvanced Optical Materials, EarlyView.
Strong Coupling has been achieved in an all‐polymer microcavity with dielectric contrast Δn = 0.33 doped with TDBC. A Rabi splitting of 39 meV has been measured opening novel perspectives for polymer photonics. ABSTRACT In this work, strong coupling effect is observed in all‐polymer planar microcavities incorporating TDBC J‐aggregates dispersed into ...
Daniela Di Fonzo   +5 more
wiley   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

THE DIAGNOSTICS OF VISCOTIC DUMPERS OF TORSIONAL VIBRATIONS [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2014
The general problems connected with the vibrations of crankshafts with a pay particular attention to the torsional vibrations are discussed in the paper.
Wojciech HOMIK
doaj  

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

open access: yesAdvanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du   +5 more
wiley   +1 more source

A parametric torsional model for nonlinear behavior of stranded cables: A finite element approach

open access: yesResults in Engineering
Stranded cable is a practical structure widely used in cranes, power transmissions, mining sectors, etc. The cable primarily comprises a core wire with helical wires whose geometric shape is a function of the intended usage. In this research, a torsional
Atabak Dobakhti, Amin Taraghi Osguei
doaj   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

open access: yesAdvanced 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

Virtual modelling the impact of torsional loading on osteoporotic vertebrae buckling

open access: yesActa of Bioengineering and Biomechanics
Purpose This study aimed to evaluate the biomechanical response or load transfer on the osteoporotic L1 vertebra under torsional loading. Methods To achieve this goal, a numerical model of osteoporotic vertebra in various trabecular bone degenerations was developed and tested.
Olga, Chabarova, Jelena, Selivonec
openaire   +2 more sources

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