Installed Programs
List of Installed Programs
Various Command line utilities are installed by pyNastran:
pyNastranGUI
The Graphical User Interface (GUI) looks like:
See gui for more details.
test_bdf
Runs through various checks on a BDF that Nastran doesn’t do. Verifies your model is referenced properly. Creates a summary table.
See test_bdf for more details.
>>> test_bdf fem.bdf > test.out
The file test.out will be created…
INFO: fname=bdf.pyc lineNo=371 ---starting BDF.read of fem.bdf---
INFO: fname=bdf.pyc lineNo=589 reject_card_name = |TEMPD|
INFO: fname=bdf.pyc lineNo=589 reject_card_name = |CTRIA3|
INFO: fname=bdf.pyc lineNo=384 ---finished BDF.read of fem.bdf---
INFO: fname=write_mesh.pyc lineNo=68 ***writing fem02.bdf_out
INFO: fname=bdf.pyc lineNo=371 ---starting BDF.read of fem.bdf_out---
INFO: fname=bdf.pyc lineNo=589 reject_card_name = |TEMPD|
INFO: fname=bdf.pyc lineNo=384 ---finished BDF.read of fem.bdf_out---
INFO: fname=write_mesh.pyc lineNo=68 ***writing fem02.bdf_out2
diff_keys1=[] diff_keys2=[]
key=CHEXA value1=52 value2=52
key=CPENTA value1=52 value2=52
key=ENDDATA value1=1 value2=1
key=GRID value1=135 value2=135
*key=INCLUDE value1=1 value2=0
key=MAT4 value1=1 value2=1
key=NLPARM value1=1 value2=1
key=PARAM value1=2 value2=2
key=PSOLID value1=1 value2=1
key=SPC value1=28 value2=28
key=TEMP value1=18 value2=18
-key=TEMPD value1=1 value2=1
*key=CTRIA3 value1=1 value2=0
test_op2
Runs through various checks on an OP2 file. Creates a summary table.
See test_op2 for more details.
>>> test_op2 -c ISat_Dploy_Sm.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
Or more simply:
>>> 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']
test_op4
Limited checker for testing to see if an OP4 file will load.
>>> test_op4 --help
Usage:
test_op4 [-q] [-o] OP4_FILENAME
test_op4 -h | --help
test_op4 -v | --version
Tests to see if an OP4 will work with pyNastran
Positional Arguments:
OP4_FILENAME Path to OP4 file
Options:
-q, --quiet Suppresses debug messages (default=False)
-o, --write_op4 Writes the op2 to fem.test_op4.op4 (default=True)
-h, --help Show this help message and exit
-v, --version Show program's version number and exit
bdf
Interface to various BDF-related command line tools
>>> bdf --help
Usage:
bdf merge (IN_BDF_FILENAMES)... [-o OUT_BDF_FILENAME]
bdf equivalence IN_BDF_FILENAME EQ_TOL
bdf renumber IN_BDF_FILENAME [-o OUT_BDF_FILENAME]
bdf mirror IN_BDF_FILENAME [-o OUT_BDF_FILENAME] [--plane PLANE] [--tol TOL]
bdf export_mcids IN_BDF_FILENAME [-o OUT_CSV_FILENAME] [--no_x] [--no_y]
bdf split_cbars_by_pin_flags IN_BDF_FILENAME [-o OUT_BDF_FILENAME] [-p PIN_FLAGS_CSV_FILENAME]
bdf bin IN_BDF_FILENAME AXIS1 AXIS2 [--cid CID] [--step SIZE]
bdf merge -h | --help
bdf equivalence -h | --help
bdf renumber -h | --help
bdf mirror -h | --help
bdf export_mcids -h | --help
bdf split_cbars_by_pin_flags -h | --help
bdf bin -h | --help
bdf -v | --version
f06
Interface to various F06-related command line tools
>>> f06 --help
Usage:
f06 plot_145 F06_FILENAME [--noline] [--modes MODES] [--subcases SUB] [--xlim FREQ] [--ylim DAMP]
f06 plot_145 -h | --help
f06 -v | --version
format_converter
Converts between various common formats, typically using Nastran as a common format. This allows methods like nodal equivalencing to be written once.
>>> format_converter --help
Usage:
format_converter nastran <INPUT> <format2> <OUTPUT> [-o <OP2>]
format_converter <format1> <INPUT> tecplot <OUTPUT> [-r RESTYPE...] [-b] [--block] [-x <X>] [-y <Y>] [-z <Z>]
format_converter <format1> <INPUT> stl <OUTPUT> [-b]
format_converter <format1> <INPUT> <format2> <OUTPUT>
format_converter -h | --help
format_converter -v | --version
Options:
format1 format type (nastran, cart3d, stl, ugrid, tecplot)
format2 format type (nastran, cart3d, stl, ugrid, tecplot)
INPUT path to input file
OUTPUT path to output file
-o OP2, --op2 OP2 path to results file (nastran-specific)
only used for Tecplot (not supported)
-x X, --xx X Creates a constant x slice; keeps points < X
-y Y, --yy Y Creates a constant y slice; keeps points < Y
-z Z, --zz Z Creates a constant z slice; keeps points < Z
--block Writes the data in BLOCK (vs. POINT) format
-r, --results Specifies the results to write to limit output
-b, --binary writes the STL in binary (not supported for Tecplot)
-h, --help show this help message and exit
-v, --version show program's version number and exit
Notes:
Nastran->Tecplot assumes sequential nodes and consistent types (shell/solid)
STL/Tecplot supports globbing as the input filename
Tecplot slicing doesn't support multiple slice values and will give bad results (not crash)
UGRID outfiles must be of the form model.b8.ugrid, where b8, b4, lb8, lb4 are valid choices and periods are important
Example:
>>> format_converter tecplot tecplot.*.plt tecplot.tecplot_joined.plt -x 0.0 -y 0.0 -z 0.0
>>> format_converter nastran fem.bdf stl fem.stl -b
>>> format_converter nastran fem.bdf cart3d fem.tri
>>> format_converter stl model.*.stl nastran fem.bdf