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## Extract Eigen Frequencies
#######################################################
jobName = '''Name of Job'''
stepName = '''Name of Step'''
from odbAccess import *
from abaqusConstants import *
import string
import numpy as np
import os
odb = openOdb(path = jobName + '.odb')
freqData = odb.steps[stepName].historyRegions['Assembly ASSEMBLY'].historyOutputs['EIGFREQ'].data
np.savetxt(jobName + '.csv', freqData, fmt='%6.12f', delimiter=',')
odb.close()