Results 1 to 10 of about 2,526 (88)

Operational Modal Analysis for Vibration Control Following Moving Window Locality Preserving Projections for Linear Slow-Time-Varying Structures

open access: yesApplied Sciences, 2021
Modal parameters can reflect the dynamic characteristics of the structure and can be used to control vibration. To identify the operational modal parameters of linear slow-time-varying structures only from non-stationary vibration response signals, a ...
Weihua Fu, Cheng Wang, Jianwei Chen
doaj   +3 more sources

Operational modal analysis using symbolic regression for a nonlinear vibration system

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
The existence of nonlinearity is an inevitable frequent occurrence that should be considered to accurately identify the modal parameters of a vibration system using operational modal analysis.
Xuchu Jiang, Feng Jiang
doaj   +1 more source

A novel corrosion detection method using wavelet transformed mode shapes of a functionally graded rotor-bearing system

open access: yesComposites Part C: Open Access, 2021
Development of online fault detection based on vibration characteristics of a rotating system has been the subject of interest for the last few decades. A novel corrosion detection method is suggested in the present work, based on the wavelet transformed
Prabhakar Sathujoda
doaj   +1 more source

Study on Structural Performance of Horizontal Axis Wind Turbine with Air Duct for Coal Mine

open access: yesEnergies, 2021
Considering the characteristics of narrow underground space and energy distribution, based on blade element momentum theory, Wilson optimization model and MATLAB programming calculation results, the torsion angle and chord length of wind turbine blade ...
Xiaohong Gui   +4 more
doaj   +1 more source

Nonlinear vibration analysis and stability analysis of rotor systems with multiple localized nonlinearities

open access: yesAIP Advances, 2022
This study proposes a methodology to analyze the nonlinear vibration characteristics of rotor systems with multiple localized nonlinearities adopting the Finite Element Method (FEM), free interface Component Mode Synthesis (CMS) method, and modified ...
Tongil Choe   +4 more
doaj   +1 more source

Stochastic Analysis on the Resonance of Railway Trains Moving over a Series of Simply Supported Bridges

open access: yesShock and Vibration, 2021
Resonance problems encountered in vehicle-bridge interaction (VBI) have attracted widespread concern over the past decades. Due to system random characteristics, the prediction of resonant speeds and responses will become more complicated.
Tao Zhang   +4 more
doaj   +1 more source

INVESTIGATION OF THE DYNAMIC BEHAVIOUR OF NON-UNIFORM THICKNESS CIRCULAR PLATES RESTING ON WINKLER AND PASTERNAK FOUNDATIONS

open access: yesActa Polytechnica, 2020
The study of the dynamic behaviour of non-uniform thickness circular plate resting on elastic foundations is very imperative in designing structural systems.
Saheed Salawu   +2 more
doaj   +1 more source

Modal Analysis of Aero-spiral Bevel Gear with Considering Temperature Field Action

open access: yesJixie chuandong, 2021
For the aero-spiral bevel gears,the temperature of flank surface will be greatly increased in the high speed and heavy load conditions. It is necessary to consider the modal condition with the temperature field in designing early.
Wentao Yu   +4 more
doaj  

STRUCTURAL OPTIMIZATION OF GEARBOX CASES BASED ON FATIGUE LIFE PREDICTION

open access: yesJixie qiangdu, 2021
According to the cracks in the gearbox of a certain type of diesel locomotive,the finite element model of gear box was established to make the life prediction by using the random vibration fatigue theory and the linear fatigue cumulative damage theory of
CHEN ChaoPeng   +5 more
doaj  

Dynamic Modeling and Analysis of the Large-Scale Rotary Machine with Multi-Supporting

open access: yesShock and Vibration, 2011
The large-scale rotary machine with multi-supporting, such as rotary kiln and rope laying machine, is the key equipment in the architectural, chemistry, and agriculture industries.
Xuejun Li, Yiping Shen, Songlai Wang
doaj   +1 more source

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