Results 21 to 30 of about 69,675 (212)

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

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

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

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

Analysis of Dynamic Behavior of Spray Boom under Step Excitation

open access: yesApplied Sciences, 2021
Dynamic behavior modeling and parameter optimization of the spray boom based on multi-body vibration were developed to study the influence of the boom sprayer’s motion in a complex working environment on the dynamic behavior of the spray boom.
Junchao Yan   +5 more
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

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

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

A Comprehensive Approach for Detecting Brake Pad Defects Using Histogram and Wavelet Features with Nested Dichotomy Family Classifiers

open access: yesSensors, 2023
The brake system requires careful attention for continuous monitoring as a vital module. This study specifically focuses on monitoring the hydraulic brake system using vibration signals through experimentation.
Sakthivel Gnanasekaran   +4 more
doaj   +1 more source

Penyelesaian khusus persamaan diferensial biasa ordo dua linier tak homogen dengan koefisien konstan untuk fungsi bagian demi bagian

open access: yesMajalah Ilmiah Matematika dan Statistika
Spring mechanical vibration motion system with a damped degree of freedom and influenced by external forces, is mathematically expressed as an ordinary differential equation of order of two linear constant coefficients that are not homogeneous.
Gani Gunawan
doaj   +1 more source

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