test_op2¶
test_op2 verifies that the OP2 is read properly. It’s mainly a
developer debugging script as it runs the OP2 twice (with different
routines to make sure the answers are the same), but test_op2
is very useful for understanding what is inside an OP2.
In general, it’s recommended that in general you call test_op2 like:
>>> test_op2 -c fem.op2
If you want an F06 file:
>>> test_op2 -cf fem.op2
You can skip results to minimize memory usage. Skipping stress and rod_strain:
>>> test_op2 -cf fem.op2 -x stress -x rod_strain
You may also skip specific subcases (read subcases 1, 5):
>>> test_op2 -cf fem.op2 -s 1_5
Finally, you can extract the geometry and write a BDF.
>>> test_op2 -c -gn fem.op2
or
>>> test_op2 -c --geometry --write_bdf fem.op2
Example¶
Here, we’ll determine what all the tables in the OP2 are as well as a summary of the objects
>>> test_op2 -c ISat_Dploy_Sm.op2
OP2_FILENAME = 'isat_dploy_sm.op2'
DEBUG: fname=op2_scalar.py lineNo=521 set_subcases - subcases = []
DEBUG: fname=op2_scalar.py lineNo=521 set_subcases - subcases = []
DEBUG: fname=op2.py lineNo=385 combine=True
DEBUG: fname=op2.py lineNo=386 -------- reading op2 with read_mode=1 (array sizing) --------
INFO: fname=op2_scalar.py lineNo=1398 op2_filename = 'isat_dploy_sm.op2'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='PVT0'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='CSTM'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GPL'
DEBUG: fname=op2_scalar.py lineNo=2241 table_name = 'GPL'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GPDT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='EPT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='MPT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM2'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM4'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM1'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='BGPDT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='DYNAMICS'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='CASECC'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='LAMA'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='BOPHIG'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='OES1'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='OEF1'
DEBUG: fname=op2.py lineNo=398 -------- reading op2 with read_mode=2 (array filling) --------
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='PVT0'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='CSTM'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GPL'
DEBUG: fname=op2_scalar.py lineNo=2241 table_name = 'GPL'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GPDT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='EPT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='MPT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM2'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM4'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM1'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='BGPDT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='DYNAMICS'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='CASECC'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='LAMA'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='BOPHIG'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='OES1'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='OEF1'
DEBUG: fname=op2.py lineNo=534 combine_results
DEBUG: fname=op2.py lineNo=406 finished reading op2
DEBUG: fname=op2.py lineNo=385 combine=True
DEBUG: fname=op2.py lineNo=386 -------- reading op2 with read_mode=1 (array sizing) --------
INFO: fname=op2_scalar.py lineNo=1398 op2_filename = 'isat_dploy_sm.op2'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='PVT0'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='CSTM'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GPL'
DEBUG: fname=op2_scalar.py lineNo=2241 table_name = 'GPL'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GPDT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='EPT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='MPT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM2'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM4'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM1'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='BGPDT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='DYNAMICS'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='CASECC'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='LAMA'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='BOPHIG'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='OES1'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='OEF1'
DEBUG: fname=op2.py lineNo=398 -------- reading op2 with read_mode=2 (array filling) --------
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='PVT0'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='CSTM'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GPL'
DEBUG: fname=op2_scalar.py lineNo=2241 table_name = 'GPL'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GPDT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='EPT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='MPT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM2'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM4'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='GEOM1'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='BGPDT'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='DYNAMICS'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='CASECC'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='LAMA'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='BOPHIG'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='OES1'
DEBUG: fname=op2_scalar.py lineNo=1589 table_name='OEF1'
DEBUG: fname=op2.py lineNo=534 combine_results
DEBUG: fname=op2.py lineNo=406 finished reading op2
---stats for isat_dploy_sm.op2---
eigenvectors[1]
isubcase = 1
type=RealEigenvectorArray ntimes=203 nnodes=5367, table_name=BOPHIG
data: [t1, t2, t3, r1, r2, r3] shape=[203, 5367, 6] dtype=float32
gridTypes
sort1
modes = [ 1 2 3 ..., 201 202 203]
eigrs = [ 0. 0. 0. ..., 11912279. 12843625. 13110797.]
mode_cycles = [ 0. 0. 0. ..., 549.31 570.38 576.282]
cbar_force[1]
type=RealCBarForceArray ntimes=203 nelements=790
data: [ntimes, nnodes, 8] where 8=[bending_moment_a1, bending_moment_a2, bending_moment_b1, bending_moment_b2, shear1, shear2, axial, torq
ue]
data.shape = (203, 790, 8)
element name: CBAR-34
sort1
modes = [ 1 2 3 ..., 201 202 203]
eigrs = [ 0. 0. 0. ..., 11912279. 12843625. 13110797.]
cycles = [ 0. 0. 0. ..., 549.31 570.38 576.282]
ctria3_stress[1]
type=RealPlateStressArray ntimes=203 nelements=32 nnodes_per_element=1 nlayers=2 ntotal=64
data: [ntimes, ntotal, 8] where 8=[fiber_distance, oxx, oyy, txy, angle, omax, omin, von_mises]
data.shape=(203L, 64L, 8L)
element type: CTRIA3
s_code: 1
sort1
modes = [ 1 2 3 ..., 201 202 203]
eigrs = [ 0. 0. 0. ..., 11912279. 12843625. 13110797.]
mode2s = [0 0 0 ..., 0 0 0]
cycles = [ 0. 0. 0. ..., 549.31 570.38 576.282]
cquad4_stress[1]
type=RealPlateStressArray ntimes=203 nelements=4580 nnodes_per_element=1 nlayers=2 ntotal=9160
data: [ntimes, ntotal, 8] where 8=[fiber_distance, oxx, oyy, txy, angle, omax, omin, von_mises]
data.shape=(203L, 9160L, 8L)
element type: CQUAD4
s_code: 1
sort1
modes = [ 1 2 3 ..., 201 202 203]
eigrs = [ 0. 0. 0. ..., 11912279. 12843625. 13110797.]
mode2s = [0 0 0 ..., 0 0 0]
cycles = [ 0. 0. 0. ..., 549.31 570.38 576.282]
eigenvalues[ISAT_SM_DEPLOYED MODES TO 400 HZ]
type=RealEigenvalues neigenvalues=203
title, extraction_order, eigenvalues, radians, cycles, generalized_mass, generalized_stiffness
INFO: fname=op2.py lineNo=639 ---self.subcase_key---
INFO: fname=op2.py lineNo=642 subcase_id=1 : keys=[1]
Alternatively, we can call it and get a shorter summary:
>>> test_op2 -ct ISat_Dploy_Sm.op2
---stats for isat_dploy_sm.op2---
eigenvectors[1]
cbar_force[1]
ctria3_stress[1]
cquad4_stress[1]
eigenvalues[u'ISAT_SM_DEPLOYED MODES TO 400 HZ']
Calling Signature¶
test_op2 [-q] [-b] [-c] [-g] [-n] [-m] [-f] [-o] [-p] [-z] [-w] [-t] [-s <sub>] [-x <arg>]... OP2_FILENAME
test_op2 -h | --help
test_op2 -v | --version
Tests to see if an OP2 will work with pyNastran
Positional Arguments:
OP2_FILENAME Path to OP2 file
Options:
-b, --binarydebug Dumps the OP2 as a readable text file
-c, --disablecompare Doesn't do a validation of the vectorized result
-q, --quiet Suppresses debug messages [default: False]
-t, --short_stats Short get_op2_stats printout
-g, --geometry Reads the OP2 for geometry, which can be written out
-n, --write_bdf Writes the bdf to fem.test_op2.bdf (default=False)
-f, --write_f06 Writes the f06 to fem.test_op2.f06
-m, --write_xlsx Writes an XLSX to fem.test_op2.xlsx
-o, --write_op2 Writes the op2 to fem.test_op2.op2
-p, --profile Profiles the code (default=False)
-z, --is_mag_phase F06 Writer writes Magnitude/Phase instead of
Real/Imaginary (still stores Real/Imag); [default: False]
-s <sub>, --subcase Specify one or more subcases to parse; (e.g. 2_5)
-w, --is_sort2 Sets the F06 transient to SORT2
-x <arg>, --exclude Exclude specific results
-h, --help Show this help message and exit
-v, --version Show program's version number and exit