MUT
发表于 2025-3-25 06:56:00
Evolutionary Power Spectrum Estimation of September 19, 1985 Mexico Earthquake Accelerograms, belong to a broad-band stochastic process. The power spectrum is estimated by determining the statistical moments of the energy of a lightly damped linear system (filter) excited by the stochastic seismic process. Some preliminary numerical data from the September 19, 1985 Mexico earthquake are pre
不法行为
发表于 2025-3-25 08:46:18
Application of stochastic differential equations to seismic reliability analysis of hysteretic strupresented, especially from the methodological aspect. To formulate the above analysis in the form of stochastic differential equations, the differential formulations of general constitutive laws for a class of hysteretic characteristics are derived. The differential forms of the seismic safety measu
crease
发表于 2025-3-25 15:21:09
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In-Situ
发表于 2025-3-25 18:48:22
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glans-penis
发表于 2025-3-25 21:04:04
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nocturnal
发表于 2025-3-26 03:07:47
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条约
发表于 2025-3-26 06:01:46
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addict
发表于 2025-3-26 08:51:29
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ascetic
发表于 2025-3-26 13:38:45
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好开玩笑
发表于 2025-3-26 17:24:36
Modal Interaction in Dynamical Systems with Closely-Spaced Natural Frequencies under Self-Excited ane natural frequencies is used as an example structure. Wind tunnel experiments are conducted using three dimensional models of the bridge tower, and it is found that the results by analysis, can well explain the experimental observations regarding modal selection under self-excited and modal interaction under random and self-excited forces.