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


 
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1. Title Title of document Time-Frequency Analysis of Shock and Vibration Measurements Using Wavelet Transforms
 
2. Creator Author's name, affiliation, country Divya Choudhary; Healthcare Packaging Consortium, Christian Brothers University, 650 East Parkway South, Memphis, TN; United States
 
2. Creator Author's name, affiliation, country Siripong Malasri; Healthcare Packaging Consortium, Christian Brothers University, 650 East Parkway South, Memphis, TN; United States
 
2. Creator Author's name, affiliation, country Mallory Harvey; Healthcare Packaging Consortium, Christian Brothers University, 650 East Parkway South, Memphis, TN; United States
 
2. Creator Author's name, affiliation, country Amanda Smith; Healthcare Packaging Consortium, Christian Brothers University, 650 East Parkway South, Memphis, TN; United States
 
2. Creator Author's name, affiliation, country (doi: 10.23953/cloud.ijapt.15)
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) Continuous Wavelet Transform; Fourier Transform; Shock Response Spectrum; Vibration
 
4. Description Abstract This article presents the use of the Continuous Wavelet Transform (CWT) for the analysis of shock and vibration measurements. Acceleration measurements from pallets dropped from five different heights and vibration measurements of pallets are acquired in controlled laboratory settings. Power spectral density (PSD) as estimated from CWT is compared to the Shock Response Spectrum as well as the PSD estimated from Fourier Transform (FT) and Short Time Fourier Transform (STFT). CWT overcomes the drawbacks of Fourier Transform in analyzing non-stationary signals such as shock and vibration data. CWT also provides more improved time-frequency resolution than STFT. The article presents results that indicate that CWT can be used as an effective spectral analysis tool for shock and vibration measurements.
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 2014-01-21
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier http://technical.cloud-journals.com/index.php/IJAPT/article/view/Tech-231
 
10. Identifier Digital Object Identifier 10.23953/Tech-231
 
11. Source Journal/conference title; vol., no. (year) International Journal of Advanced Packaging Technology; Vol 2, No 1 (2014)
 
12. Language English=en en
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
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