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Difference operator for variable stiffness plates

✍ Scribed by A. K. Chugh; H. Gesund


Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
310 KB
Volume
9
Category
Article
ISSN
0029-5981

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Time–Frequency Analysis of a Variable St
✍ Leon Cohen; Lorenzo Galleani; Robert Hedges; David Hughes; Patrick Loughlin; Bru πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 340 KB

Over the past 50 years it has been found that many real systems have spectra which are changing in time. In this article we explore the possibility of describing such systems with harmonic and nonlinear oscillator equations whose coefficients are time dependent. We show that time-frequency analysis