def test_lb_Stiffener2D():
print('Testing linear buckling for StiffPanelBay with a 2D Stiffener')
spb = StiffPanelBay()
spb.a = 1.
spb.b = 0.5
spb.stack = [0, 90, 90, 0]
spb.plyt = 1e-3*0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.model = 'plate_clt_donnell_bardell'
spb.mu = 1.3e3
spb.m = 15
spb.n = 16
spb.add_panel(y1=0, y2=spb.b/2., plyt=spb.plyt, Nxx=-1.)
spb.add_panel(y1=spb.b/2., y2=spb.b, plyt=spb.plyt, Nxx_cte=1000.)
spb.add_bladestiff2d(ys=spb.b/2., m1=14, n1=11, bf=0.05,
fstack=[0, 90, 90, 0],
fplyt=spb.plyt, flaminaprop=spb.laminaprop)
k0 = spb.calc_k0(silent=True)
kG = spb.calc_kG0(silent=True)
eigvals, eigvecs = lb(k0, kG, silent=True)
assert np.isclose(eigvals[0].real, 301.0825234, atol=0.1, rtol=0)
def test_lb_Stiffener2D():
print('Testing linear buckling for StiffPanelBay with a 2D Stiffener')
spb = StiffPanelBay()
spb.a = 1.
spb.b = 0.5
spb.stack = [0, 90, 90, 0]
spb.plyt = 1e-3 * 0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.model = 'plate_clt_donnell_bardell'
spb.mu = 1.3e3
spb.m = 15
spb.n = 16
spb.add_panel(y1=0, y2=spb.b / 2., plyt=spb.plyt, Nxx=-1.)
spb.add_panel(y1=spb.b / 2., y2=spb.b, plyt=spb.plyt, Nxx_cte=1000.)
spb.add_bladestiff2d(ys=spb.b / 2.,
m1=14,
n1=11,
bf=0.05,
fstack=[0, 90, 90, 0],
fplyt=spb.plyt,
flaminaprop=spb.laminaprop)
k0 = spb.calc_k0(silent=True)
kG = spb.calc_kG0(silent=True)
eigvals, eigvecs = lb(k0, kG, silent=True)
assert np.isclose(eigvals[0].real, 301.0825234, atol=0.1, rtol=0)
def test_freq_Stiffener2D():
print('Testing frequency analysis for StiffPanelBay with a 2D Stiffener')
spb = StiffPanelBay()
spb.a = 1.
spb.b = 0.5
spb.stack = [0, 90, 90, 0]
spb.plyt = 1e-3*0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.model = 'plate_clt_donnell_bardell'
spb.mu = 1.3e3
spb.m = 11
spb.n = 12
spb.add_panel(y1=0, y2=spb.b/2., plyt=spb.plyt)
spb.add_panel(y1=spb.b/2., y2=spb.b, plyt=spb.plyt)
spb.add_bladestiff2d(ys=spb.b/2., m1=14, n1=11, bf=0.08,
fstack=[0, 90, 90, 0]*5, fplyt=spb.plyt,
flaminaprop=spb.laminaprop)
k0 = spb.calc_k0(silent=True)
M = spb.calc_kM(silent=True)
eigvals, eigvecs = freq(k0, M, silent=True)
assert np.isclose(eigvals[0].real, 137.97927190657148, atol=0.01, rtol=0)
def test_freq_Stiffener2D():
print('Testing frequency analysis for StiffPanelBay with a 2D Stiffener')
spb = StiffPanelBay()
spb.a = 1.
spb.b = 0.5
spb.stack = [0, 90, 90, 0]
spb.plyt = 1e-3 * 0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.model = 'plate_clt_donnell_bardell'
spb.mu = 1.3e3
spb.m = 11
spb.n = 12
spb.add_panel(y1=0, y2=spb.b / 2., plyt=spb.plyt)
spb.add_panel(y1=spb.b / 2., y2=spb.b, plyt=spb.plyt)
spb.add_bladestiff2d(ys=spb.b / 2.,
m1=14,
n1=11,
bf=0.08,
fstack=[0, 90, 90, 0] * 5,
fplyt=spb.plyt,
flaminaprop=spb.laminaprop)
k0 = spb.calc_k0(silent=True)
M = spb.calc_kM(silent=True)
eigvals, eigvecs = freq(k0, M, silent=True)
assert np.isclose(eigvals[0].real, 137.97927190657148, atol=0.01, rtol=0)
def test_dynamic_with_BladeStiff2D():
print('Testing dynamic analysis with TStiff2D')
spb = StiffPanelBay()
spb.a = 2.
spb.b = 1.
spb.stack = [0, 90, 90, 0]
spb.plyt = 1e-3*0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.model = 'plate_clt_donnell_bardell'
spb.m = 10
spb.n = 10
spb.mu = 1.3e3
spb.add_panel(y1=0, y2=spb.b/2., plyt=spb.plyt)
spb.add_panel(y1=spb.b/2., y2=spb.b, plyt=spb.plyt)
bb = spb.b/5.
bf = bb
stiff = spb.add_bladestiff2d(ys=spb.b/2., bf=bf, bb=bb,
fstack=[0, 90, 90, 0]*2,
fplyt=spb.plyt*1., flaminaprop=spb.laminaprop,
bstack=[0, 90, 90, 0]*1,
bplyt=spb.plyt*1., blaminaprop=spb.laminaprop,
mf=10, nf=10)
k0 = spb.calc_k0()
M = spb.calc_kM()
eigvals, eigvecs = freq(k0, M, silent=True)
spb.plot_skin(eigvecs[:, 0], filename='tmp_test_bladestiff2d_dynamic_skin.png',
colorbar=True)
spb.plot_stiffener(eigvecs[:, 0], si=0, region='flange',
filename='tmp_test_bladestiff2d_dynamic_stiff_flange.png', colorbar=True)
assert np.isclose(eigvals[0], 25.865835238236173, atol=0.01, rtol=0.001)
def test_static_with_BladeStiff2D():
print('Testing linear statics with BladeStiff2D')
spb = StiffPanelBay()
spb.a = 2.
spb.b = 1.
spb.m = 12
spb.n = 13
spb.stack = [0, +45, -45, 90, -45, +45, 0]
spb.plyt = 1e-3 * 0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.add_panel(y1=0, y2=spb.b / 2., plyt=spb.plyt)
spb.add_panel(y1=spb.b / 2., y2=spb.b, plyt=spb.plyt)
bb = spb.b / 5.
bf = bb
stiff = spb.add_bladestiff2d(ys=spb.b / 2.,
bf=bf,
bb=bb,
fstack=[0, 90, 90, 0] * 8,
fplyt=spb.plyt * 1.,
flaminaprop=spb.laminaprop,
bstack=[0, 90, 90, 0] * 4,
bplyt=spb.plyt * 1.,
blaminaprop=spb.laminaprop,
mf=17,
nf=16)
stiff.flange.forces.append(
[stiff.flange.a / 2., stiff.flange.b, 0., 0., 1000.])
spb.calc_k0()
fext = spb.calc_fext()
inc, cs = static(spb.k0, fext, silent=True)
wpanelmin = spb.uvw_skin(cs[0])[2].min()
#NOTE repeated call on purpose to evaluate if cs[0] is being messed up
# somewhere
wpanelmin = spb.uvw_skin(cs[0])[2].min()
wflangemax = spb.uvw_stiffener(cs[0], 0, region='flange')[2].max()
#NOTE repeated call on purpose
wflangemax = spb.uvw_stiffener(cs[0], 0, region='flange')[2].max()
assert np.isclose(wpanelmin, -0.30581458201781481, atol=1.e-4, rtol=0.001)
assert np.isclose(wflangemax, 0.331155797371884, atol=1.e-4, rtol=0.001)
spb.plot_skin(cs[0],
filename='tmp_test_bladestiff2d_static_skin.png',
colorbar=True,
vec='w',
clean=False)
spb.plot_stiffener(
cs[0],
si=0,
region='flange',
filename='tmp_test_bladestiff2d_stiff_static_flange.png',
colorbar=True,
clean=False)
def test_bladestiff2d_lb():
print('Testing linear buckling with BladeStiff2D')
spb = StiffPanelBay()
spb.a = 2.
spb.b = 1.
spb.stack = [0, +45, -45, 90, -45, +45]
spb.plyt = 1e-3 * 0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.model = 'plate_clt_donnell_bardell'
spb.m = 17
spb.n = 16
Nxx = -50.
spb.add_panel(y1=0, y2=spb.b / 2., plyt=spb.plyt, Nxx=Nxx)
spb.add_panel(y1=spb.b / 2., y2=spb.b, plyt=spb.plyt, Nxx=Nxx)
bb = spb.b / 5.
bf = bb
stiff = spb.add_bladestiff2d(ys=spb.b / 2.,
bf=bf,
bb=bb,
fstack=[0, 90, 90, 0] * 8,
fplyt=spb.plyt * 1.,
flaminaprop=spb.laminaprop,
bstack=[0, 90, 90, 0] * 4,
bplyt=spb.plyt * 1.,
blaminaprop=spb.laminaprop,
mf=17,
nf=16)
spb.calc_k0()
spb.calc_kG0()
eigvals, eigvecs = lb(spb.k0, spb.kG0, silent=True)
spb.plot_skin(eigvecs[:, 0],
filename='tmp_test_bladestiff2d_lb_skin.png',
colorbar=True)
spb.plot_stiffener(eigvecs[:, 0],
si=0,
region='flange',
filename='tmp_test_bladestiff2d_lb_stiff_flange.png',
colorbar=True)
calc = eigvals[0] * Nxx
spb.plot_skin(eigvecs[:, 0],
filename='tmp_test_bladestiff2d_lb_skin.png',
colorbar=True,
vec='w',
clean=False)
assert np.isclose(calc, -759.05689868085778, atol=0.0001, rtol=0.001)
def test_freq_Stiffener2D():
print('Testing frequency analysis for StiffPanelBay with a 2D Stiffener')
spb = StiffPanelBay()
spb.a = 1.
spb.b = 0.5
spb.stack = [0, 90, 90, 0]
spb.plyt = 1e-3*0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.model = 'plate_clt_donnell_bardell'
spb.mu = 1.3e3
spb.m = 11
spb.n = 12
spb.add_panel(y1=0, y2=spb.b/2., plyt=spb.plyt)
spb.add_panel(y1=spb.b/2., y2=spb.b, plyt=spb.plyt)
spb.add_bladestiff2d(ys=spb.b/2., m1=14, n1=11, bf=0.08,
fstack=[0, 90, 90, 0]*5, fplyt=spb.plyt,
flaminaprop=spb.laminaprop)
spb.freq(silent=True, atype=4)
assert np.isclose(spb.eigvals[0].real, 138.51917530043477)
def test_dynamic_with_BladeStiff2D():
print('Testing dynamic analysis with TStiff2D')
spb = StiffPanelBay()
spb.a = 2.
spb.b = 1.
spb.stack = [0, 90, 90, 0]
spb.plyt = 1e-3 * 0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.model = 'plate_clt_donnell_bardell'
spb.m = 10
spb.n = 10
spb.mu = 1.3e3
spb.add_panel(y1=0, y2=spb.b / 2., plyt=spb.plyt)
spb.add_panel(y1=spb.b / 2., y2=spb.b, plyt=spb.plyt)
bb = spb.b / 5.
bf = bb
stiff = spb.add_bladestiff2d(ys=spb.b / 2.,
bf=bf,
bb=bb,
fstack=[0, 90, 90, 0] * 2,
fplyt=spb.plyt * 1.,
flaminaprop=spb.laminaprop,
bstack=[0, 90, 90, 0] * 1,
bplyt=spb.plyt * 1.,
blaminaprop=spb.laminaprop,
mf=10,
nf=10)
k0 = spb.calc_k0()
M = spb.calc_kM()
eigvals, eigvecs = freq(k0, M, silent=True)
spb.plot_skin(eigvecs[:, 0],
filename='tmp_test_bladestiff2d_dynamic_skin.png',
colorbar=True)
spb.plot_stiffener(
eigvecs[:, 0],
si=0,
region='flange',
filename='tmp_test_bladestiff2d_dynamic_stiff_flange.png',
colorbar=True)
assert np.isclose(eigvals[0], 25.865835238236173, atol=0.01, rtol=0.001)
def test_static_with_BladeStiff2D():
print('Testing linear statics with BladeStiff2D')
spb = StiffPanelBay()
spb.a = 2.
spb.b = 1.
spb.m = 12
spb.n = 13
spb.stack = [0, +45, -45, 90, -45, +45, 0]
spb.plyt = 1e-3*0.125
spb.laminaprop = (142.5e9, 8.7e9, 0.28, 5.1e9, 5.1e9, 5.1e9)
spb.add_panel(y1=0, y2=spb.b/2., plyt=spb.plyt)
spb.add_panel(y1=spb.b/2., y2=spb.b, plyt=spb.plyt)
bb = spb.b/5.
bf = bb
stiff = spb.add_bladestiff2d(ys=spb.b/2., bf=bf, bb=bb,
fstack=[0, 90, 90, 0]*8,
fplyt=spb.plyt*1., flaminaprop=spb.laminaprop,
bstack=[0, 90, 90, 0]*4,
bplyt=spb.plyt*1., blaminaprop=spb.laminaprop,
mf=17, nf=16)
stiff.flange.forces.append([stiff.flange.a/2., stiff.flange.b, 0., 0., 1000.])
spb.calc_k0()
fext = spb.calc_fext()
inc, cs = static(spb.k0, fext, silent=True)
wpanelmin = spb.uvw_skin(cs[0])[2].min()
#NOTE repeated call on purpose to evaluate if cs[0] is being messed up
# somewhere
wpanelmin = spb.uvw_skin(cs[0])[2].min()
wflangemax = spb.uvw_stiffener(cs[0], 0, region='flange')[2].max()
#NOTE repeated call on purpose
wflangemax = spb.uvw_stiffener(cs[0], 0, region='flange')[2].max()
assert np.isclose(wpanelmin, -0.30581458201781481, atol=1.e-4, rtol=0.001)
assert np.isclose(wflangemax, 0.331155797371884, atol=1.e-4, rtol=0.001)
spb.plot_skin(cs[0], filename='tmp_test_bladestiff2d_static_skin.png', colorbar=True, vec='w', clean=False)
spb.plot_stiffener(cs[0], si=0, region='flange',
filename='tmp_test_bladestiff2d_stiff_static_flange.png', colorbar=True, clean=False)