Long-span steel structure building micro-strain short-term prediction method
A short-term forecasting and steel structure technology, applied in special data processing applications, geometric CAD, design optimization/simulation, etc., can solve the problem of lack of effective methods for short-term forecasting
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[0060] see figure 1 , the short-term prediction method of a kind of long-span steel structure building micro-strain of the present invention, comprises the following steps:
[0061] Step 1. Obtain the historical data of micro-strain of long-span steel structure buildings, and divide them into training set and test set according to the relevant ratio. The ratio here is 9:1.
[0062] Step 2, using the variational mode decomposition (VMD) method to adaptively decompose the training set and test set in step 1, effectively extracting the decomposed modal component data in the historical data, reducing the instability of the historical data, and improving Prediction accuracy; then use phase space reconstruction to process and optimize the decomposed modal component data, and obtain the subsequences of each modal component in the training set and the subsequences of each modal component in the test set, so that the reconstructed samples are better Reflect changes in the micro-strain...
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