Modal Analysis Module¶

Modal analysis tools for mode fitting and modal parameter extraction.

Created on Mon Aug 19 17:29:30 2019

@author: tb267

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f_3dB(f, G0)

modal_fit_single_channel(tf_data, freq_range=None, channel=0, measurement_type='acc')

Fit modal parameters for a single mode to data within specified freq_range

f_TF(x, f, measurement_type)

f_residual(x, f, G0, measurement_type)

f_TF_all_channels(x, f, measurement_type)

f_residual_all_channels(x, f, G0, measurement_type)

modal_fit_all_channels(tf_data_list, freq_range=None, measurement_type='acc')

Fit modal parameters for a single mode to data within specified freq_range.

Assumes all tf_data in tf_data_list have same frequency axes

unpack(x)

unpack_matrix(X)

pack(fn, zn, an, pn, rk, rm)

reconstruct_transfer_function(modal_data, f, measurement_type='acc')

Reconstructs transfer functions from modal_data and returns TfData object

reconstruct_transfer_function_global(modal_data, f, measurement_type='acc')

Reconstructs transfer functions from modal_data and returns TfData object