sdynpy.signal_processing.sdynpy_srs.sdof_ramp_invariant_filter_weights

• Module: sdynpy.signal_processing.sdynpy_srs

• Source: GitHub

Signature¶

def sdynpy.signal_processing.sdynpy_srs.sdof_ramp_invariant_filter_weights(frequencies, sample_rate, damping, spectrum_type)

Computes filter weights for SDOF resonators using a ramp-invariant filter.

The weights are used in conjunction with the function sdof_filter and srs to calculate the shock response spectrum of an acceleration time history using a ramp invarient simulation.

Parameters¶

• frequencies : np.ndarray The frequencies at which filters should be computed

• sample_rate : float The sample rate of the measurement

• damping : float The fraction of critical damping for the system (e.g. 0.03, not 3 for 3%)

• spectrum_type : int See spectrum_type argument for compute_srs

Returns¶

• b : np.ndarray Filter coefficients with shape (frequencies.shape,3)

• a : np.ndarray Filter coefficients with shape (frequencies.shape,3)