Results 241 to 250 of about 5,387,025 (281)
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The natural frequencies of portal frames—II
International Journal of Mechanical Sciences, 1965Abstract The oscillations of a single-storey, single-bay portal frame have been investigated. The particular case of a frame having identical columns which differ from the cross-beam has been studied in detail for the limiting cases of (a) encastre footing, (b) pinned footing.
N.F. Rieger, H. McCallion
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Natural hybridization: Frequency
1997Abstract As discussed in Chapter ], numerous investigators have used natural hybridiza tion as a tool for studying phenomena that may cause population divergence and speciation (i.e., the formation of ban-iers to reproduction; Barton and Charlesworth, 1984; Coyne and Barton, 1988; Hewitt, 1988; Barton and Hewitt, 1989).
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Natural Frequencies, an Approximation
2004Generally, when calculating the natural frequencies of complex dynamic linear systems the finite element analysis method is applied. However, it is good practice to first apply a method to approximately calculate the natural frequency of that system to get a feel for the value of the natural frequency.
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Journal of the American Society for Naval Engineers, 1949
Merl D. Creech, James O. Melton
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Merl D. Creech, James O. Melton
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Automatic tracking of natural frequency in the time–frequency domain for blade tip timing
Journal of Sound and Vibration, 2022Xuefeng Chen, Zengkun Wang, Zhibo Yang
exaly
NATURAL FREQUENCIES OF REPETITIVE STRUCTURES
The Quarterly Journal of Mechanics and Applied Mathematics, 1971openaire +2 more sources
Structural Damage Detection by Changes in Natural Frequencies
Journal of Intelligent Material Systems and Structures, 2010Zhichun Yang
exaly