Results 31 to 40 of about 125,693 (306)

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Multi-cracks identification based on the nonlinear vibration response of beams subjected to moving harmonic load

MATEC Web of Conferences, 2016
The aim of this work is to investigate the nonlinear forced vibration of beams containing an arbitrary number of cracks and to perform a multi-crack identification procedure based on the obtained signals. Cracks are assumed to be open and modelled trough
Chouiyakh H., Azrar L., Akourri O., Alnefaie K.   +3 more
doaj   +1 more source

Experimental Study on Robustness of an Eddy Current-Tuned Mass Damper

Applied Sciences, 2017
In this paper, an eddy current tuned mass damper (ECTMD) is utilized to control the vibration of a cantilever beam. The robustness of the ECTMD against frequency detuning is experimentally studied in cases of both free vibration and forced vibration. The
Junda Chen, Guangtao Lu, Yourong Li, Tao Wang, Wenxi Wang, Gangbing Song   +5 more
doaj   +1 more source

Large amplitude forced vibrations of Timoshenko beams using coupled displacement field method

Forces in Mechanics, 2022
Forced vibration behaviour of a Timoshenko beam, with a concentrated mass at the centre, subjected to a concentrated harmonic force is investigated using the coupled displacement field method.
K. Meera Saheb, Gopichand Kanneti, Prabhakar Sathujoda   +2 more
doaj   +1 more source

FORCED VIBRATION ANALYSIS OF A MULTIDEGREE IMPACT VIBRATOR

Journal of Sound and Vibration, 1998
The dynamics of a multidegree impact vibrator subject to harmonic loading is investigated. The system is represented by a lumped mass model which hits and rebounds from a rigid wall during vibration. The periodic solution to the equations of motion with $N$ forcing cycles and $P$ impacts is formulated.
Pun, D, Lau, S, Law, S, Cao, D
openaire   +3 more sources

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Finite Element Vibration Analysis of Laminated Composite Folded Plate Structures

Shock and Vibration, 1999
A nine-noded Lagrangian plate bending finite element that incorporates first-order transverse shear deformation and rotary inertia is used to predict the free and forced vibration response of laminated composite folded plate structures.
A. Guha Niyogi, M.K. Laha, P.K. Sinha
doaj   +1 more source

Finite element modelling of fixed-fixed end plate attached with vibration absorber [PDF]

, 2016
The present paper investigated the effect of the lightweight dynamic vibration absorber (LDVA) to reduce vibration of thin walled structure. The free and forced vibration response of a rectangular thin plate were performed using finite element method ...
Azahar, Mohamad Amirur Rahman, Darlis, Nofrizalidris, Hashim, Muhamad Mohshein, Hassan, Norhafizzah, Mohd Salleh, Zuliazura, Mustaffa, Khairul Nizam, Ngali, Mohd Zamani, Saiful Azam, Syafiqah Ruqaiyah, Taib, Ishkrizat   +8 more
core   +2 more sources

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source