Results 21 to 30 of about 944,594 (140)

Transient feature extraction method based on adaptive TQWT sparse optimization

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
Aiming at the problem of strong impact, short response period and wide resonance frequency bandwidth of transient vibration signals, a transient feature extraction method based on adaptive tunable Q-factor wavelet transform (TQWT) was proposed.
Xue Liu, Ao Sun, Jian Hu
doaj   +1 more source

The experimental performance of a nonlinear dynamic vibration absorber [PDF]

open access: yes, 2013
This paper investigates the physical behaviour andeffectiveness of a nonlinear dynamic vibration absorber(NDVA). The nonlinear absorber considered involves anonlinear hardening spring which was designed andattached to a cantilever beam excited by a ...
Ferguson, N.S., Brennan, M.J., Hsu, Y.S.
core   +2 more sources

Vibration characteristics analysis of high-pressure long-distance dense paste pipeline transporting with hydraulic active check valve

open access: yesAlexandria Engineering Journal, 2023
The pumping pressure required for long-distance pipeline transporting of dense paste is very high, the pumping system vibrates strongly, and the pipeline system is seriously damaged.
Fuyan Lyu   +6 more
doaj   +1 more source

Dynamic Analysis of Beams with Interval Parameters

open access: yesModelling
The present study deals with the transient interval analysis of a shallow beam having uncertainty in structural parameters viz. mass density and applied load.
Venkata Rama Rao Mallela   +1 more
doaj   +1 more source

Impact Force Analysis in Inertia-Type Piezoelectric Motors

open access: yesActuators, 2023
In an inertia-type motor, a piezoelectric multilayer actuator is espoused to a transient vibration velocity as high as 1.0 m/s during slip time. This vibration velocity makes the inertia-type motors dynamic but not quasi-static.
Burhanettin Koc, Bülent Delibas
doaj   +1 more source

Transient Chaos in Platform-vibrator with Shock

open access: yesStrength of Materials and Theory of Structures, 2021
Platform-vibrator with shock is widely used in the construction industry for compacting and molding large concrete products. Its mathematical model, created in our previous work, meets all the basic requirements of shock-vibration technology for the precast concrete production on low-frequency resonant platform-vibrators.
Viktor Bazhenov   +2 more
openaire   +3 more sources

Determination of the rheological properties of thin plate under transient vibration

open access: yesLatin American Journal of Solids and Structures
The article deals with systematic analysis of the transient vibration of rectangular viscoelastic orthotropic thin 2D plate. The analysis is focused on specific deformation models of plate and for specific linear models of rheological properties.
Jan Skočilas   +2 more
doaj   +1 more source

Transient torsional vibration analysis of marine diesel engine under short-circuit impact

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesIn order to formulate an optimization scheme for the torsional vibration parameters of a marine diesel generator shaft system, it is necessary to analyze the transient torsional vibration characteristics of the diesel generator under short ...
Congcong XU   +6 more
doaj   +1 more source

Transient Vibro-Acoustic Characteristics of Double-Layered Stiffened Cylindrical Shells

open access: yesAcoustics
This study investigates the underwater transient vibro-acoustic response of double-layered stiffened cylindrical shells through an integrated experimental-numerical approach.
Qirui Luo   +4 more
doaj   +1 more source

A New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas

open access: yesInternational Journal of Antennas and Propagation, 2019
Under transient wind disturbance, vibration deformation of the large antenna surface profile causes deterioration of pointing performance. This paper presents a new adaptive system to suppress unknown transient wind disturbance.
Wei Liang, Jin Huang, Jie Zhang
doaj   +1 more source

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