Results 1 to 10 of about 1,263,529 (296)

Noise Suppression by Noise [PDF]

open access: yesPhysical Review Letters, 2001
We have analyzed the interplay between an externally added noise and the intrinsic noise of systems that relax fast towards a stationary state, and found that increasing the intensity of the external noise can reduce the total noise of the system. We have established a general criterion for the appearance of this phenomenon and discussed two examples ...
Vilar, J. M. G. (José M. G.), 1972-   +1 more
openaire   +4 more sources

A Novel Low Stiffness Air Spring Vibration-Isolation Mounting System

open access: yesShock and Vibration, 2022
Quasi-zero-stiffness (QZS) structures offer substantial practical benefits for facilitating the essential support and isolation of vibrational source loads aboard modern marine vessels.
Chang-geng Shuai   +3 more
doaj   +1 more source

Tribological characteristics and mechanism of nitrile butadiene rubber coated with typical liquid lubricants

open access: yesPolymer Testing, 2022
When marine stern shafts operate under low speed and heavy load conditions, the metal shaft and water-lubricated bearing will be in a state of boundary lubrication or even dry friction.
Yinsong Liu   +4 more
doaj   +1 more source

Error-Index-Based Algorithm for Low-Velocity Impact Localization

open access: yesShock and Vibration, 2022
Flat plates and cylindrical shells are commonly used in large equipment. To locate the low-velocity impact points in these structures, this study proposes an error-index-based algorithm for impact localization.
Tao Peng   +4 more
doaj   +1 more source

Vibration Transmission from a Machine with Three Degree of Freedoms to Beam Structures by Dynamic Stiffness Method

open access: yesShock and Vibration, 2022
The dynamic stiffness method (DSM) is proposed for vibration transmission from a machine with three degree of freedoms (DOFs) to its supporting beam structures.
Zitian Wei   +3 more
doaj   +1 more source

Study on Acoustic Characteristics of a Flexible Plate Strongly Coupled with Rectangular Cavity

open access: yesShock and Vibration, 2021
This paper presents a method to predict the acoustic characteristics and steady-state responses of a flexible plate strongly coupled with rectangular cavity based on energy principle theory and Legendre polynomial series.
Jinlong Liao   +3 more
doaj   +1 more source

Crackling noise [PDF]

open access: yesNature, 2001
Crackling noise arises when a system responds to changing external conditions through discrete, impulsive events spanning a broad range of sizes. A wide variety of physical systems exhibiting crackling noise have been studied, from earthquakes on faults to paper crumpling. Because these systems exhibit regular behavior over many decades of sizes, their
Sethna, James P.   +2 more
openaire   +3 more sources

Design and testing of a smart rubber stave for marine water-lubricated bearings

open access: yesScience and Engineering of Composite Materials, 2022
The water-lubricated bearing is mainly installed at the stern of the ship to support the rotation of the main shaft of the ship, which is an important component of the ship’s power plant.
Yu Xiao-feng   +5 more
doaj   +1 more source

Research on structural sound source localization method by neural network

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
To solve problems related to much calculation to adapt to complex scenes in traditional structural sound source localization, this paper proposes a method based on neural network.
Xiufeng Huang   +3 more
doaj   +1 more source

Skewed noise [PDF]

open access: yesJournal of Economic Theory, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
David Dillenberger, Uzi Segal
openaire   +5 more sources

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