Results 21 to 30 of about 169,867,477 (285)

Free Vibration of The System of Two Strings Coupled by a Viscoelastic Interlayer

open access: yesEngineering Transactions, 2015
This paper introduces an analytical method of solving the free vibration problem for a continuous system of two strings coupled by a viscoelastic interlayer.
K. Cabańska-Płaczkiewicz
doaj   +1 more source

Two Stage Helical Gearbox Fault Detection and Diagnosis based on Continuous Wavelet Transformation of Time Synchronous Averaged Vibration Signals [PDF]

open access: yes, 2012
Vibration signals from a gearbox are usually very noisy which makes it difficult to find reliable symptoms of a fault in a multistage gearbox. This paper explores the use of time synchronous average (TSA) to suppress the noise and Continue Wavelet ...
Gu, Fengshou   +8 more
core   +1 more source

Suppression of reflected waves of an aquatic flexible plate to improve efficiency of an aquatic propulsion mechanism

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This study deals with a generation method of undulatory motion of an aquatic flexible plate, to improve the efficiency of an aquatic propulsion mechanism by suppression of a reflection wave on a trailing edge.
Yuichi MATSUMURA   +5 more
doaj   +1 more source

Theoretical analyses of growth mechanism of rail corrugation

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Rail corrugation is a phenomenon in which roughness patterns of approximately regular wavelengths are formed on the rail running surface by trains running, and causes the vibration and the noise.
Mitsuo ABOSHI, Hirofumi TANAKA
doaj   +1 more source

Verification of elastically supported beam model for growth mechanism analysis of rail corrugation

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Rail corrugation that causes the vibration and the noise is a phenomenon in which roughness patterns of approximately regular wavelengths are formed on the rail running surface by trains running.
Mitsuo ABOSHI, Hirofumi TANAKA
doaj   +1 more source

Normal Modes of Vibration for Non-Linear Continuous Systems [PDF]

open access: yesJournal of Sound and Vibration, 1994
A definition and a constructive methodology for normal nodes of motion are developed for a class of vibratory systems the dynamics of which are governed by non-linear partial differential equations. The definition for normal modes is given in terms of the dynamics on two-dimensional invariant manifolds in the system phase space.
Shaw, Steven W., Pierre, Christophe
openaire   +4 more sources

Influence of different parameters on nonlinear friction-induced vibration characteristics of water lubricated stern bearings

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2021
To investigate the mechanism of friction-induced vibration and noise of ship water lubricated stern bearings, a two-degree-of-freedom (2-DOF) nonlinear self-excited vibration model is established. The novelty of this work lies in the detailed analysis of
Chang-Gang Lin   +4 more
doaj   +1 more source

Simulation analyses of progress process of rail corrugation

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Rail corrugation is such phenomenon that roughness patterns of approximately regular wavelengths are formed on the rail running surface by trains running, and cause the vibration and the noise.
Mitsuo ABOSHI, Hirofumi TANAKA
doaj   +1 more source

Numerical analysis of dynamic response of vehicle–bridge coupled system on long-span continuous girder bridge

open access: yesTheoretical and Applied Mechanics Letters, 2016
To systematically study the vehicle–bridge coupled dynamic response and its change rule with different parameters, a vehicle model with seven degrees of freedom was built and the total potential energy of vehicle space vibration system was deduced ...
Lipeng An, Dejian Li, Peng Yu, Peng Yuan
doaj   +1 more source

Accurate Fault Location Method of the Mechanical Transmission System of Shearer Ranging Arm

open access: yesIEEE Access, 2020
In the process of coal mine production, the fault of the mechanical transmission system of the shearer ranging arm directly affects safety production. Therefore, it is very important to achieve the accurate fault location of the shearer ranging arm.
Qinghua Mao   +5 more
doaj   +1 more source

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