OS1102 A study on the response characteristics of a single-degree-of-freedom linear system subjected to narrow-band non-Gaussian random excitation by using the cross-correlation function

2016 ◽  
Vol 2016.22 (0) ◽  
pp. _OS1102-1_-_OS1102-2_
Author(s):  
Daiki UEHARA ◽  
Takahiro TSUCHIDA ◽  
Koji KIMURA
Keyword(s):  
Correlation Function ◽  
Linear System ◽  
Cross Correlation ◽  
Narrow Band ◽  
Random Excitation ◽  
Cross Correlation Function ◽  
Single Degree Of Freedom ◽  
Response Characteristics ◽  
Single Degree ◽  
Non Gaussian

Damage Detection Based on the Cross Correlation Function Amplitude Vector and its Application to the ASCE Benchmark Structure

2007 ◽  
Vol 353-358 ◽  
pp. 2317-2320 ◽  
Author(s):  
Zhe Feng Yu ◽  
Zhi Chun Yang
Keyword(s):  
Correlation Function ◽  
Damage Detection ◽  
Structural Damage ◽  
Cross Correlation ◽  
Relative Difference ◽  
Random Excitation ◽  
Cross Correlation Function ◽  
Vibration Responses ◽  
Specific Frequency ◽  
The Cross

A new method for structural damage detection based on the Cross Correlation Function Amplitude Vector (CorV) of the measured vibration responses is presented. Under a stationary random excitation with a specific frequency spectrum, the CorV of the structure only depends on the frequency response function matrix of the structure, so the normalized CorV has a specific shape. Thus the damage can be detected and located with the correlativity and the relative difference between CorVs of the intact and damaged structures. With the benchmark problem sponsored by ASCE Task Group on Structural Health Monitoring, the CorV is proved an effective approach to detecting the damage in structures subject to random excitations.

An Analogue Simulation of the Nonlinear Vibration of a Plate with a Central Opening Subjected to Tension Loading

1981 ◽  
Vol 23 (2) ◽  
pp. 103-106 ◽  
Author(s):  
P. K. Datta
Keyword(s):  
Random Excitation ◽  
Analogue Computer ◽  
Nonlinear Stiffness ◽  
Single Degree Of Freedom ◽  
Response Characteristics ◽  
Single Degree ◽  
Central Opening ◽  
Frequency Response Characteristics ◽  
Stiffness Characteristics ◽  
Tension Loading

The complicated, nonlinear stiffness characteristics of a tensioned plate with a central opening are studied via analogue computer simulation. Associated frequency response characteristics and statistical properties of the response to random excitation are examined using a single degree of freedom model.

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