Multi-damping artificial wave fitting method for constructing multi-parameterized time domain adjustment curve
A technology for adjusting curves and artificial waves, which is applied in the field of multi-damping artificial wave fitting based on the optimal principle to construct multi-parameterized time-domain adjustment curves, which can solve the problems of uncontrollable influence, reduction of computational efficiency and fitting accuracy, etc.
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[0073] Specific embodiments of the present invention will be described in detail below in conjunction with specific schemes and accompanying drawings.
[0074] The method in this embodiment takes the normalized Elcentro wave as the initial wave and fits the RG1.60 design spectrum with five damping ratios of 0.5%, 2%, 5%, 7% and 10% as an example for illustration. Include the following steps:
[0075] (1) Construct the standard input time histories at all frequency control points and damping ratios according to equations (1) to (4), forming a standard input time history library, which is convenient for calling standard input time histories in subsequent adjustments. The standard input time history at 5% damping ratio 15Hz and its Fourier amplitude spectrum and response spectrum are as follows: Figure 2a , 2b and 2c as shown;
[0076] (2) The normalized Elcentro wave and its calculated response spectrum are as follows image 3 and 4 As shown, calculate the maximum relative...
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