def test_cord2_rcs_03(self):
"""
all points are located at <30,40,50>
"""
model = BDF(debug=False)
#card_count = {
#'GRID' : 3,
#'CORD2R' : 1,
#'CORD2C' : 1,
#'CORD2S' : 2,
#}
card_lines = [
[
'CORD2S* 2 0 0. 0.',
'* 0. 0. 0. 1.* ',
'* 1. 0. 1.',
],
[
#'$ Femap with NX Nastran Coordinate System 30 : rectangular in spherical',
'CORD2R* 30 2 14. 30.',
'* 70. 13.431863852 32.1458443949 75.2107442927* ',
'* 14.4583462334 33.4569982885 68.2297989286',
],
[
#'$ Femap with NX Nastran Coordinate System 31 : cylindrical in spherical',
'CORD2C* 31 2 3. 42.',
'* -173. 2.86526881213 45.5425615252 159.180363517* ',
'* 3.65222385965 29.2536614627 -178.631312271',
],
[
#'$ Femap with NX Nastran Coordinate System 32 : spherical in spherical',
'CORD2S* 32 2 22. 14.',
'* 85. 22.1243073983 11.9537753718 77.9978191005* ',
'* 21.0997242967 13.1806120497 88.4824763008',
],
[
'GRID* 30 30 40.7437952957 -23.6254877994',
'* -33.09784854 0',
],
[
'GRID* 31 31 62.9378078196 15.9774797923',
'* 31.0484428362 0',
],
[
'GRID* 32 32 53.8270847449 95.8215692632',
'* 159.097767463 0',
],
]
cards, card_count = model.add_cards_lines(card_lines)
model.allocate(card_count, cards)
model.build()
for nid in model.nodes:
a = array([30., 40., 50.])
b = model.Node(nid).get_position()
self.assertTrue(
allclose(array([30., 40., 50.]),
model.Node(nid).get_position()), str(a - b))
def test_cord2_rcs_01(self):
"""
all points are located at <30,40,50>
"""
model = BDF(debug=False)
card_count = {
'GRID': 3,
'CORD2R': 1,
'CORD2C': 1,
'CORD2S': 1,
}
cards = []
card_lines = [
[
#'$ Femap with NX Nastran Coordinate System 10 : rectangular defined in a rectangular',
'CORD2R* 10 0 10. 5.',
'* 3. 10.3420201433 4.53015368961 3.81379768136* ',
'* 10.7198463104 5.68767171433 3.09449287122',
],
[
#'$ Femap with NX Nastran Coordinate System 11 : cylindrical defined in rectangular',
'CORD2C* 11 0 7. 3.',
'* 9. 7.64278760969 2.73799736977 9.71984631039* ',
'* 7.75440650673 3.37968226211 8.46454486422',
],
[
#'$ Femap with NX Nastran Coordinate System 12 : spherical defined in rectangular',
'CORD2S* 12 0 12. 8.',
'* 5. 12.6427876097 7.86697777844 5.75440650673* ',
'* 12.6634139482 8.58906867688 4.53861076379',
],
[
'GRID* 10 10 42.9066011565 34.2422137135',
'* 28.6442730262 0',
],
[
'GRID* 11 11 48.8014631871 78.8394787869',
'* 34.6037164304 0',
],
[
'GRID* 12 12 58.0775343829 44.7276544324',
'* 75.7955331161 0',
],
]
cards, card_count = model.add_cards_lines(card_lines)
model.allocate(card_count, cards)
model.build()
for nid in model.nodes:
a = array([30., 40., 50.])
b = model.Node(nid).get_position()
self.assertTrue(
allclose(array([30., 40., 50.]),
model.Node(nid).get_position()), str(a - b))
def test_cord2_rcs_02(self):
"""
all points are located at <30,40,50>
"""
model = BDF(debug=False)
cards = [
[
'CORD2C* 1 0 0. 0.',
'* 0. 0. 0. 1.* ',
'* 1. 0. 1.',
],
[ #'$ Femap with NX Nastran Coordinate System 20 : rectangular defined in cylindrical',
'CORD2R* 20 1 7. 20.',
'* -6. 7.07106781187 28.1301023542 -6.* ',
'* 7.70710678119 20. -5.29289321881',
],
[ #'$ Femap with NX Nastran Coordinate System 21 : cylindrical defined in cylindrical',
'CORD2C* 21 1 15. -30.',
'* 12. 14.6565766735 -30.3177805524 12.9355733712* ',
'* 14.6234241583 -26.4257323272 11.9304419665',
],
[ #'$ Femap with NX Nastran Coordinate System 22 : spherical defined in cylindrical',
'CORD2S* 22 1 5. -75.',
'* 20. 5.66032384035 -82.9319986389 19.8502545865* ',
'* 4.88876051026 -73.8006653677 19.0116094889',
],
[
'GRID* 20 20 64.2559135157 -14.9400459772',
'* 27.3271005317 0',
],
[
'GRID* 21 21 52.8328862418 -28.8729017195',
'* 34.615939507 0',
],
[
'GRID* 22 22 61.1042111232 158.773483595',
'* -167.4951724 0',
],
]
for lines in cards:
card = model.process_card(lines)
model.add_card(card, card[0])
model.cross_reference()
for nid in model.nodes:
a = array([30., 40., 50.])
b = model.Node(nid).Position()
self.assertTrue(
allclose(array([30., 40., 50.]),
model.Node(nid).Position()), str(a - b))
def test_cord2r_02(self):
grid = ['GRID 20143 7 -9.31-4 .11841 .028296']
coord = ['CORD2R 7 1.135 .089237 -.0676 .135 .089237 -.0676',
' 1.135 .089237 .9324']
model = BDF(debug=False)
card_count = {
'GRID' : 1,
'CORD2R' : 1,
}
model.allocate(card_count)
card = model.process_card(grid)
model.add_card(card, card[0])
card = model.process_card(coord)
model.add_card(card, card[0])
model.cross_reference()
g = model.Node(20143)
#xyz = g.Position()
xyz = model.coords.get_global_position_by_node_id(20143, g.cp[0])[0]
# by running it through Patran...
#GRID 20143 1.1067 .207647 -.068531
expected = array([1.106704, .207647, -0.068531])
diff = xyz - expected
msg = '\nexpected=%s \nactual =%s \ndiff =%s' % (expected, xyz, diff)
assert allclose(diff, 0.), msg
coord = model.Coord(7)
coord.T()
self.assertTrue(array_equal(coord.T(), coord.beta_n(2)))
def test_cord2r_1(self):
grid = ['GRID 20143 7 -9.31-4 .11841 .028296']
coord = [
'CORD2R 7 1.135 .089237 -.0676 .135 .089237 -.0676',
' 1.135 .089237 .9324'
]
model = BDF(debug=False)
card = model.process_card(grid)
model.add_card(card, card[0])
card = model.process_card(coord)
model.add_card(card, card[0])
model.cross_reference()
g = model.Node(20143)
#print(g.Position(debug=False))
# by running it through Patran...
#GRID 20143 1.1067 .207647 -.068531
diff = g.Position() - array([1.106704, .207647, -0.068531])
msg = 'diff=%s' % diff
assert allclose(diff, 0.), msg
coord = model.Coord(7)
coord.T()
self.assertTrue(array_equal(coord.T(), coord.beta_n(2)))
def test_grid_01(self):
model = BDF(debug=False)
cards = [
#['CORD1R', 1, 1, 2, 3], # fails on self.k
['GRID', 1, 0, 0., 0., 0.],
['GRID', 2, 0, 1., 0., 0.],
['GRID', 4, 0, 1., 2., 3.],
]
card_count = {
'GRID': 3,
}
model.allocate(card_count)
for card in cards:
model.add_card(card, card[0], comment='comment', is_list=True)
#+------+-----+----+----+----+----+----+----+------+
#| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
#+======+=====+====+====+====+====+====+====+======+
#| GRID | NID | CP | X1 | X2 | X3 | CD | PS | SEID |
#+------+-----+----+----+----+----+----+----+------+
node = model.Node(4)
def test_grid_01(self):
model = BDF(debug=False)
cards = [
#['CORD1R', 1, 1, 2, 3], # fails on self.k
['GRID', 1, 0, 0., 0., 0.],
['GRID', 2, 0, 1., 0., 0.],
['GRID', 4, 0, 1., 2., 3.],
]
for card in cards:
model.add_card(card, card[0], comment='comment', is_list=True)
#+------+-----+----+----+----+----+----+----+------+
#| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
#+======+=====+====+====+====+====+====+====+======+
#| GRID | NID | CP | X1 | X2 | X3 | CD | PS | SEID |
#+------+-----+----+----+----+----+----+----+------+
node = model.Node(4)
self.assertEqual(node.get_field(1), 4)
self.assertEqual(node.get_field(2), 0)
self.assertEqual(node.get_field(3), 1.)
self.assertEqual(node.get_field(4), 2.)
self.assertEqual(node.get_field(5), 3.)
node.update_field(1, 5)
node.update_field(2, 6)
node.update_field(3, 7.)
node.update_field(4, 8.)
node.update_field(5, 9.)
with self.assertRaises(KeyError):
node.update_field(9, 'dummy')
self.assertEqual(node.get_field(1), 5)
self.assertEqual(node.get_field(2), 6)
self.assertEqual(node.get_field(3), 7.)
self.assertEqual(node.get_field(4), 8.)
self.assertEqual(node.get_field(5), 9.)
with self.assertRaises(KeyError):
node.get_field(9)
