Time-frequency analysis of single-point engine-block vibration measurements for multiple excitation-event identification

2009 ◽  
Vol 321 (3-5) ◽  
pp. 1129-1143 ◽  
Author(s):  
S. Vulli ◽  
J.F. Dunne ◽  
R. Potenza ◽  
D. Richardson ◽  
P. King
Keyword(s):  
Frequency Analysis ◽  
Single Point ◽  
Engine Block ◽  
Vibration Measurements ◽  
Time Frequency Analysis ◽  
Event Identification ◽  
Time Frequency

Time-Frequency Analysis of Shock and Vibration Measurements Using Wavelet Transforms

2014 ◽  
Vol 2 (1) ◽  
pp. 60-69
Author(s):  
Divya Choudhary ◽  
◽  
Siripong Malasri ◽  
Mallory Harvey ◽  
Amanda Smith
Keyword(s):  
Frequency Analysis ◽  
Wavelet Transforms ◽  
Vibration Measurements ◽  
Time Frequency Analysis ◽  
Time Frequency

scholarly journals Determining Time Variation of Cable Tension Forces in Suspended Bridges Using Time-Frequency Analysis

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Gannon Stromquist-LeVoir ◽  
Kevin F. McMullen ◽  
Arash E. Zaghi ◽  
Richard Christenson
Keyword(s):  
Frequency Analysis ◽  
Ambient Vibration ◽  
Vibration Measurements ◽  
Cable Tension ◽  
Time Frequency Analysis ◽  
Time Frequency ◽  
Tensile Forces ◽  
Motion Studies ◽  
Ambient Vibration Measurements ◽  
Cable Forces

A feasibility study was conducted to develop a novel method to determine the temporal changes of tensile forces in bridge suspender cables using time-frequency analysis of ambient vibration measurements. An analytical model of the suspender cables was developed to evaluate the power spectral density (PSD) function of a cable with consideration of cable flexural stiffness. Discrete-time, short-time Fourier transform (STFT) was utilized to analyze the recorded acceleration histories in both time and frequency domains. A mathematical convolution of the analytical PSD function and time-frequency data was completed to evaluate changes in cable tension force over time. The method was implemented using acceleration measurements collected from an in-service steel arch bridge with a suspended deck to calculate the temporal variation in cable forces from the vibration measurements. The observations served as proof of concept that the proposed method may be used for cable fatigue life calculations and bridge weigh-in-motion studies.

Time-Frequency Analysis of Partial Discharge Phenomena in SF6 gas using Wavelet Transform

1997 ◽  
Vol 117 (3) ◽  
pp. 338-345 ◽  
Author(s):  
Masatake Kawada ◽  
Masakazu Wada ◽  
Zen-Ichiro Kawasaki ◽  
Kenji Matsu-ura ◽  
Makoto Kawasaki
Keyword(s):  
Wavelet Transform ◽  
Frequency Analysis ◽  
Partial Discharge ◽  
Time Frequency Analysis ◽  
Time Frequency

Advances in Time-Frequency Analysis of Biomedical Signals

1996 ◽  
Vol 24 (1) ◽  
pp. 1-72 ◽  
Author(s):  
Zhiyue Lin ◽  
Jian De Z. Chen
Keyword(s):  
Frequency Analysis ◽  
Time Frequency Analysis ◽  
Biomedical Signals ◽  
Time Frequency

Application of time-frequency analysis in investigating non-phase locked components of EEG

2018 ◽  
Vol 26 (8) ◽  
pp. 1349
Author(s):  
Xia WU ◽  
Chupeng ZHONG ◽  
Yulong DING ◽  
Zhe QU
Keyword(s):  
Frequency Analysis ◽  
Time Frequency Analysis ◽  
Time Frequency

Anti-Radiation-Missile detection based on parameterized time-frequency analysis

2010 ◽  
Vol 30 (11) ◽  
pp. 3108-3110
Author(s):  
Xiao-ming LIU ◽  
Jian-dong WANG ◽  
Xu-dong WANG
Keyword(s):  
Frequency Analysis ◽  
Time Frequency Analysis ◽  
Time Frequency

Time-Frequency Analysis for Multi-granularity Motion Segmentation

2017 ◽  
Vol 29 (12) ◽  
pp. 2288 ◽  
Author(s):  
Xi Yang ◽  
Shujie Li ◽  
Yingkai Zhang ◽  
Xiaoping Liu
Keyword(s):  
Frequency Analysis ◽  
Motion Segmentation ◽  
Time Frequency Analysis ◽  
Time Frequency
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