Results 41 to 50 of about 1,439,925 (246)

A Dynamic-Balancing Testing System Designed for Flexible Rotor

Shock and Vibration, 2021
In this paper, a dynamic-balancing testing system is designed. The innovative feature of the testing system is the dynamic balancing of the rotor system with robustness and high balance efficiency which meets the requirements of engineering application ...
Shibo Zhao, Xingmin Ren, Yihao Liu, Kuan Lu, Chao Fu, Yongfeng Yang   +5 more
doaj   +1 more source

Vibrations

, 2011
Before we can continue to the propagation of sound waves, we have to treat the principles of free and forced vibrations.
Postema, Michiel, Attenborough, Keith
openaire   +2 more sources

Multistable vibration energy harvesters: Principle, progress, and perspectives

Journal of Sound and Vibration, 2022
Shengxi Zhou, M. Lallart, A. Erturk
semanticscholar   +1 more source

Health effects associated with occupational exposure to hand-arm or whole body vibration

Journal of Toxicology and Environmental Health. Part B, Critical Reviews, 2018
Workers in a number of different occupational sectors are exposed to workplace vibration on a daily basis. This exposure may arise through the use of powered-hand tools or hand-transmitted vibration (HTV).
K. Krajnak
semanticscholar   +1 more source

Machines’ Intelligent Fault Diagnosis Based on Hierarchical Refined Composite Generalized Multiscale Fluctuation Dispersion Entropy

Shock and Vibration
Vibration data from mechanical equipment contain extensive information distributed across multiple dimensions. Single-scale analysis fails to comprehensively reflect its damage characteristics, thereby reducing fault diagnosis accuracy.
Biwen Chen, Changsheng Chen, Zhenlai Ma, Guoping Li, Yi Zhang, Baoyue Li   +5 more
doaj   +1 more source

Prediction Model of Vibration Feature for Equipment Maintenance Based on Full Vector Spectrum

Shock and Vibration, 2017
Establishing a prediction model is a key step for the implementation of prognostic and health management. The prediction model can be used to forecast the change trend of the characteristics of the vibration signal and analyze the potential failure in ...
Lei Chen, Jie Han, Wenping Lei, ZhenHong Guan, Yajuan Gao   +4 more
doaj   +1 more source

Modeling of the Through-the-Thickness Electric Potentials of a Piezoelectric Bimorph Using the Spectral Element Method

Sensors, 2014
An efficient spectral element (SE) with electric potential degrees of freedom (DOF) is proposed to investigate the static electromechanical responses of a piezoelectric bimorph for its actuator and sensor functions.
Xingjian Dong, Zhike Peng, Hongxing Hua, Guang Meng   +3 more
doaj   +1 more source

Vibration based condition monitoring of rotating machinery

, 2018
This project looks at the different maintenance philosophies and the importance of vibration analysis in predictive maintenance. Since most industries and plants make use of rotational equipment, vibration analysis plays a major role in detecting machine
Goutam Senapaty, Sathish Rao
semanticscholar   +1 more source

Phase-detection distributed fiber-optic vibration sensor without fading-noise based on time-gated digital OFDR.

Optics Express, 2017
For a distributed fiber-optic vibration sensor (DFVS), the vibration signal extracted from the phase of backscattering has a linear response to the applied vibration, and is more attractive than that from the intensity term.
Dian Chen, Qingwen Liu, Zuyuan He
semanticscholar   +1 more source

Review of Lightweight Vibration Isolation Technologies for Marine Power Devices

Shock and Vibration
Vibration induced by marine power devices (MPD) transmitting to the hull structure is one of the most important factors that cause ship vibration and underwater sound radiation.
Yuanran Qiu, Wei Xu, Zechao Hu, Junqiang Fu, Mengxuan He   +4 more
doaj   +1 more source