def compute(self, inputs, outputs):
z = inputs["z"]
windLoads = (DirectionVector(
inputs["windLoads_Px"], inputs["windLoads_Py"],
inputs["windLoads_Pz"]).inertialToWind(
inputs["windLoads_beta"]).windToYaw(inputs["yaw"]))
waveLoads = (DirectionVector(
inputs["waveLoads_Px"], inputs["waveLoads_Py"],
inputs["waveLoads_Pz"]).inertialToWind(
inputs["waveLoads_beta"]).windToYaw(inputs["yaw"]))
Px = np.interp(z, inputs["windLoads_z"], windLoads.x) + np.interp(
z, inputs["waveLoads_z"], waveLoads.x)
Py = np.interp(z, inputs["windLoads_z"], windLoads.y) + np.interp(
z, inputs["waveLoads_z"], waveLoads.y)
Pz = np.interp(z, inputs["windLoads_z"], windLoads.z) + np.interp(
z, inputs["waveLoads_z"], waveLoads.z)
qdyn = np.interp(
z, inputs["windLoads_z"], inputs["windLoads_qdyn"]) + np.interp(
z, inputs["waveLoads_z"], inputs["waveLoads_qdyn"])
# The following are redundant, at one point we will consolidate them to something that works for both cylinder (not using vartrees) and jacket (still using vartrees)
outputs["Px"] = Px
outputs["Py"] = Py
outputs["Pz"] = Pz
outputs["qdyn"] = qdyn
def compute(self, inputs, outputs):
z = inputs['z']
hubHt = z[-1] # top of cylinder
windLoads = DirectionVector(
inputs['windLoads_Px'], inputs['windLoads_Py'],
inputs['windLoads_Pz']).inertialToWind(
inputs['windLoads_beta']).windToYaw(inputs['yaw'])
waveLoads = DirectionVector(
inputs['waveLoads_Px'], inputs['waveLoads_Py'],
inputs['waveLoads_Pz']).inertialToWind(
inputs['waveLoads_beta']).windToYaw(inputs['yaw'])
Px = np.interp(z, inputs['windLoads_z'], windLoads.x) + np.interp(
z, inputs['waveLoads_z'], waveLoads.x)
Py = np.interp(z, inputs['windLoads_z'], windLoads.y) + np.interp(
z, inputs['waveLoads_z'], waveLoads.y)
Pz = np.interp(z, inputs['windLoads_z'], windLoads.z) + np.interp(
z, inputs['waveLoads_z'], waveLoads.z)
qdyn = np.interp(
z, inputs['windLoads_z'], inputs['windLoads_qdyn']) + np.interp(
z, inputs['waveLoads_z'], inputs['waveLoads_qdyn'])
#The following are redundant, at one point we will consolidate them to something that works for both cylinder (not using vartrees) and jacket (still using vartrees)
outputs['Px'] = Px
outputs['Py'] = Py
outputs['Pz'] = Pz
outputs['qdyn'] = qdyn
def compute(self, inputs, outputs, discrete_inputs, discrete_outputs):
F = inputs['F']
M = inputs['M']
tilt = float(inputs['tilt'])
F = DirectionVector.fromArray(F).hubToYaw(tilt)
M = DirectionVector.fromArray(M).hubToYaw(tilt)
# change x-direction if downwind
hub_cm = np.copy(inputs['hub_cm'])
rna_cm = np.copy(inputs['rna_cm'])
if discrete_inputs['downwind']:
hub_cm[0] *= -1
rna_cm[0] *= -1
hub_cm = DirectionVector.fromArray(hub_cm)
rna_cm = DirectionVector.fromArray(rna_cm)
self.save_rhub = hub_cm
self.save_rcm = rna_cm
# aerodynamic moments
M = M + hub_cm.cross(F)
self.saveF = F
# add weight loads
F_w = DirectionVector(0.0, 0.0, -float(inputs['rna_mass'])*gravity)
M_w = rna_cm.cross(F_w)
self.saveF_w = F_w
Fout = F + F_w
if discrete_inputs['rna_weightM']:
Mout = M + M_w
else:
Mout = M
#REMOVE WEIGHT EFFECT TO ACCOUNT FOR P-Delta Effect
print("!!!! No weight effect on rotor moments -TowerSE !!!!")
# put back in array
outputs['top_F'] = np.array([Fout.x, Fout.y, Fout.z])
outputs['top_M'] = np.array([Mout.x, Mout.y, Mout.z])
def test(self):
x = np.array([1.0, 2.0])
y = np.array([1.3, 4.3])
z = np.array([2.3, 2.3])
a = DirectionVector(x, y, z)
x = np.array([3.2, 1.5])
y = np.array([2.1, 3.2])
z = np.array([5.6, 7.7])
b = DirectionVector(x, y, z)
c = a.cross(b)
dx, dy, dz = a.cross_deriv(b)
dx, dy, dz = a.cross_deriv_array(b)
d = -a
e = a + b
f = a - b
f += a
f -= a
k = a * b
p = a / b
p *= b
p /= a
e = a + 1.2
f = a - 1.2
f += 2.
f -= 3.
k = a * 4.
p = a / 2.
p *= 3.
p /= 2.
T1 = 5.0
T2 = 4.0
T3 = -3.0
tilt = 20.0
F = DirectionVector(T1, T2, T3).hubToYaw(tilt)
Fp1 = DirectionVector(T1 + 1e-6, T2, T3).hubToYaw(tilt)
Fp2 = DirectionVector(T1, T2 + 1e-6, T3).hubToYaw(tilt)
Fp3 = DirectionVector(T1, T2, T3 + 1e-6).hubToYaw(tilt)
Fp4 = DirectionVector(T1, T2, T3).hubToYaw(tilt + 1e-6)
dFx = F.dx
dFy = F.dy
dFz = F.dz
npt.assert_almost_equal(dFx['dx'], (Fp1.x - F.x) / 1e-6)
npt.assert_almost_equal(dFx['dy'], (Fp2.x - F.x) / 1e-6)
npt.assert_almost_equal(dFx['dz'], (Fp3.x - F.x) / 1e-6)
npt.assert_almost_equal(dFx['dtilt'], (Fp4.x - F.x) / 1e-6)
npt.assert_almost_equal(dFy['dx'], (Fp1.y - F.y) / 1e-6)
npt.assert_almost_equal(dFy['dy'], (Fp2.y - F.y) / 1e-6)
npt.assert_almost_equal(dFy['dz'], (Fp3.y - F.y) / 1e-6)
npt.assert_almost_equal(dFy['dtilt'], (Fp4.y - F.y) / 1e-6)
npt.assert_almost_equal(dFz['dx'], (Fp1.z - F.z) / 1e-6)
npt.assert_almost_equal(dFz['dy'], (Fp2.z - F.z) / 1e-6)
npt.assert_almost_equal(dFz['dz'], (Fp3.z - F.z) / 1e-6)
npt.assert_almost_equal(dFz['dtilt'], (Fp4.z - F.z) / 1e-6)
yaw = 3.0
F = DirectionVector(T1, T2, T3).hubToYaw(tilt).yawToWind(yaw)
Fp1 = DirectionVector(T1 + 1e-6, T2, T3).hubToYaw(tilt).yawToWind(yaw)
Fp2 = DirectionVector(T1, T2 + 1e-6, T3).hubToYaw(tilt).yawToWind(yaw)
Fp3 = DirectionVector(T1, T2, T3 + 1e-6).hubToYaw(tilt).yawToWind(yaw)
Fp4 = DirectionVector(T1, T2, T3).hubToYaw(tilt + 1e-6).yawToWind(yaw)
Fp5 = DirectionVector(T1, T2, T3).hubToYaw(tilt).yawToWind(yaw + 1e-6)
dFx = F.dx
dFy = F.dy
dFz = F.dz
npt.assert_almost_equal(dFx['dx'], (Fp1.x - F.x) / 1e-6)
npt.assert_almost_equal(dFx['dy'], (Fp2.x - F.x) / 1e-6)
npt.assert_almost_equal(dFx['dz'], (Fp3.x - F.x) / 1e-6)
npt.assert_almost_equal(dFx['dtilt'], (Fp4.x - F.x) / 1e-6)
npt.assert_almost_equal(dFx['dyaw'], (Fp5.x - F.x) / 1e-6)
npt.assert_almost_equal(dFy['dx'], (Fp1.y - F.y) / 1e-6)
npt.assert_almost_equal(dFy['dy'], (Fp2.y - F.y) / 1e-6)
npt.assert_almost_equal(dFy['dz'], (Fp3.y - F.y) / 1e-6)
npt.assert_almost_equal(dFy['dtilt'], (Fp4.y - F.y) / 1e-6)
npt.assert_almost_equal(dFy['dyaw'], (Fp5.y - F.y) / 1e-6)
npt.assert_almost_equal(dFz['dx'], (Fp1.z - F.z) / 1e-6)
npt.assert_almost_equal(dFz['dy'], (Fp2.z - F.z) / 1e-6)
npt.assert_almost_equal(dFz['dz'], (Fp3.z - F.z) / 1e-6)
npt.assert_almost_equal(dFz['dtilt'], (Fp4.z - F.z) / 1e-6)
npt.assert_almost_equal(dFz['dyaw'], (Fp5.z - F.z) / 1e-6)
inertial_F = F.windToInertial(20.)
new_F = inertial_F.inertialToWind(20.)
npt.assert_almost_equal(F.toArray(), new_F.toArray())
wind_F = F.yawToWind(15.)
new_F = wind_F.windToYaw(15.)
npt.assert_almost_equal(F.toArray(), new_F.toArray())
yaw_F = F.hubToYaw(12.)
new_F = yaw_F.yawToHub(12.)
npt.assert_almost_equal(F.toArray(), new_F.toArray())
az_F = F.hubToAzimuth(12.)
new_F = az_F.azimuthToHub(12.)
npt.assert_almost_equal(F.toArray(), new_F.toArray())
blade_F = F.azimuthToBlade(12.)
new_F = blade_F.bladeToAzimuth(12.)
npt.assert_almost_equal(F.toArray(), new_F.toArray())
blade_F = F.airfoilToBlade(12.)
new_F = blade_F.bladeToAirfoil(12.)
npt.assert_almost_equal(F.toArray(), new_F.toArray())
profile_F = F.airfoilToProfile()
new_F = profile_F.profileToAirfoil()
npt.assert_almost_equal(F.toArray(), new_F.toArray())
def compute(self, inputs, outputs, discrete_inputs, discrete_outputs):
##############################
def region_stacking(i, idx, start_nd_arc, end_nd_arc, layer_name,
layer_thickness, fiber_orientation, layer_mat,
material_dict, materials, region_loc):
# Recieve start and end of composite sections chordwise, find which composites layers are in each
# chordwise regions, generate the precomp composite class instance
# error handling to makes sure there were no numeric errors causing values very close too, but not exactly, 0 or 1
start_nd_arc = [
0. if start_nd_arci != 0. and np.isclose(start_nd_arci, 0.)
else start_nd_arci for start_nd_arci in start_nd_arc
]
end_nd_arc = [
0. if end_nd_arci != 0. and np.isclose(end_nd_arci, 0.) else
end_nd_arci for end_nd_arci in end_nd_arc
]
start_nd_arc = [
1. if start_nd_arci != 1. and np.isclose(start_nd_arci, 1.)
else start_nd_arci for start_nd_arci in start_nd_arc
]
end_nd_arc = [
1. if end_nd_arci != 1. and np.isclose(end_nd_arci, 1.) else
end_nd_arci for end_nd_arci in end_nd_arc
]
# region end points
dp = sorted(list(set(start_nd_arc + end_nd_arc)))
#initialize
n_plies = []
thk = []
theta = []
mat_idx = []
# loop through division points, find what layers make up the stack between those bounds
for i_reg, (dp0, dp1) in enumerate(zip(dp[0:-1], dp[1:])):
n_pliesi = []
thki = []
thetai = []
mati = []
for i_sec, start_nd_arci, end_nd_arci in zip(
idx, start_nd_arc, end_nd_arc):
name = layer_name[i_sec]
if start_nd_arci <= dp0 and end_nd_arci >= dp1:
if name in region_loc.keys():
if region_loc[name][i] == None:
region_loc[name][i] = [i_reg]
else:
region_loc[name][i].append(i_reg)
n_pliesi.append(1.)
thki.append(layer_thickness[i_sec])
if fiber_orientation[i_sec] == None:
thetai.append(0.)
else:
thetai.append(fiber_orientation[i_sec])
mati.append(material_dict[layer_mat[i_sec]])
n_plies.append(np.array(n_pliesi))
thk.append(np.array(thki))
theta.append(np.array(thetai))
mat_idx.append(np.array(mati))
# print('----------------------')
# print('dp', dp)
# print('n_plies', n_plies)
# print('thk', thk)
# print('theta', theta)
# print('mat_idx', mat_idx)
# print('materials', materials)
sec = CompositeSection(dp, n_plies, thk, theta, mat_idx, materials)
return sec, region_loc
##############################
def web_stacking(i, web_idx, web_start_nd_arc, web_end_nd_arc,
layer_thickness, fiber_orientation, layer_mat,
material_dict, materials, flatback, upperCSi):
dp = []
n_plies = []
thk = []
theta = []
mat_idx = []
if len(web_idx) > 0:
dp = np.mean(
(np.abs(web_start_nd_arc), np.abs(web_start_nd_arc)),
axis=0).tolist()
dp_all = [[-1. * start_nd_arci, -1. * end_nd_arci]
for start_nd_arci, end_nd_arci in zip(
web_start_nd_arc, web_end_nd_arc)]
web_dp, web_ids = np.unique(dp_all,
axis=0,
return_inverse=True)
for webi in np.unique(web_ids):
# store variable values (thickness, orientation, material) for layers that make up each web, based on the mapping array web_ids
n_pliesi = [
1. for i_reg, web_idi in zip(web_idx, web_ids)
if web_idi == webi
]
thki = [
layer_thickness[i_reg]
for i_reg, web_idi in zip(web_idx, web_ids)
if web_idi == webi
]
thetai = [
fiber_orientation[i_reg]
for i_reg, web_idi in zip(web_idx, web_ids)
if web_idi == webi
]
thetai = [
0. if theta_ij == None else theta_ij
for theta_ij in thetai
]
mati = [
material_dict[layer_mat[i_reg]]
for i_reg, web_idi in zip(web_idx, web_ids)
if web_idi == webi
]
n_plies.append(np.array(n_pliesi))
thk.append(np.array(thki))
theta.append(np.array(thetai))
mat_idx.append(np.array(mati))
if flatback:
dp.append(1.)
n_plies.append(upperCSi.n_plies[-1])
thk.append(upperCSi.t[-1])
theta.append(upperCSi.theta[-1])
mat_idx.append(upperCSi.mat_idx[-1])
dp_out = sorted(list(set(dp)))
sec = CompositeSection(dp_out, n_plies, thk, theta, mat_idx,
materials)
return sec
##############################
layer_name = self.options['modeling_options']['blade']['layer_name']
layer_mat = self.options['modeling_options']['blade']['layer_mat']
upperCS = [None] * self.n_span
lowerCS = [None] * self.n_span
websCS = [None] * self.n_span
profile = [None] * self.n_span
# Check that the layer to be optimized actually exist
te_ss_var_ok = False
te_ps_var_ok = False
spar_cap_ss_var_ok = False
spar_cap_ps_var_ok = False
for i_layer in range(self.n_layers):
if layer_name[i_layer] == self.te_ss_var:
te_ss_var_ok = True
if layer_name[i_layer] == self.te_ps_var:
te_ps_var_ok = True
if layer_name[i_layer] == self.spar_cap_ss_var:
spar_cap_ss_var_ok = True
if layer_name[i_layer] == self.spar_cap_ps_var:
spar_cap_ps_var_ok = True
if te_ss_var_ok == False:
print(
'The layer at the trailing edge suction side is set to be optimized, but does not exist in the input yaml. Please check.'
)
if te_ps_var_ok == False:
print(
'The layer at the trailing edge pressure side is set to be optimized, but does not exist in the input yaml. Please check.'
)
if spar_cap_ss_var_ok == False:
print(
'The layer at the spar cap suction side is set to be optimized, but does not exist in the input yaml. Please check.'
)
if spar_cap_ps_var_ok == False:
print(
'The layer at the spar cap pressure side is set to be optimized, but does not exist in the input yaml. Please check.'
)
region_loc_vars = [
self.te_ss_var, self.te_ps_var, self.spar_cap_ss_var,
self.spar_cap_ps_var
]
region_loc_ss = {
} # track precomp regions for user selected composite layers
region_loc_ps = {}
for var in region_loc_vars:
region_loc_ss[var] = [None] * self.n_span
region_loc_ps[var] = [None] * self.n_span
## Materials
material_dict = {}
materials = []
for i_mat in range(self.n_mat):
materials.append(
Orthotropic2DMaterial(inputs['E'][i_mat, 0], inputs['E'][i_mat,
1],
inputs['G'][i_mat,
0], inputs['nu'][i_mat, 0],
inputs['rho'][i_mat],
discrete_inputs['mat_name'][i_mat]))
material_dict[discrete_inputs['mat_name'][i_mat]] = i_mat
## Spanwise
for i in range(self.n_span):
# time0 = time.time()
## Profiles
# rotate
profile_i = inputs['coord_xy_interp'][i, :, :]
profile_i_rot = np.column_stack(
rotate(inputs['pitch_axis'][i], 0., profile_i[:, 0],
profile_i[:, 1], np.radians(inputs['theta'][i])))
# import matplotlib.pyplot as plt
# plt.plot(profile_i[:,0], profile_i[:,1])
# plt.plot(profile_i_rot[:,0], profile_i_rot[:,1])
# plt.axis('equal')
# plt.title(i)
# plt.show()
# normalize
profile_i_rot[:, 0] -= min(profile_i_rot[:, 0])
profile_i_rot = profile_i_rot / max(profile_i_rot[:, 0])
profile_i_rot_precomp = copy.copy(profile_i_rot)
idx_s = 0
idx_le_precomp = np.argmax(profile_i_rot_precomp[:, 0])
if idx_le_precomp != 0:
if profile_i_rot_precomp[0, 0] == profile_i_rot_precomp[-1, 0]:
idx_s = 1
profile_i_rot_precomp = np.row_stack(
(profile_i_rot_precomp[idx_le_precomp:],
profile_i_rot_precomp[idx_s:idx_le_precomp, :]))
profile_i_rot_precomp[:, 1] -= profile_i_rot_precomp[
np.argmin(profile_i_rot_precomp[:, 0]), 1]
# # renormalize
profile_i_rot_precomp[:, 0] -= min(profile_i_rot_precomp[:, 0])
profile_i_rot_precomp = profile_i_rot_precomp / max(
profile_i_rot_precomp[:, 0])
if profile_i_rot_precomp[-1, 0] != 1.:
profile_i_rot_precomp = np.row_stack(
(profile_i_rot_precomp, profile_i_rot_precomp[0, :]))
# 'web' at trailing edge needed for flatback airfoils
if profile_i_rot_precomp[0, 1] != profile_i_rot_precomp[
-1, 1] and profile_i_rot_precomp[
0, 0] == profile_i_rot_precomp[-1, 0]:
flatback = True
else:
flatback = False
profile[i] = Profile.initWithTEtoTEdata(
profile_i_rot_precomp[:, 0], profile_i_rot_precomp[:, 1])
# import matplotlib.pyplot as plt
# plt.plot(profile_i_rot_precomp[:,0], profile_i_rot_precomp[:,1])
# plt.axis('equal')
# plt.title(i)
# plt.show()
idx_le = np.argmin(profile_i_rot[:, 0])
profile_i_arc = arc_length(profile_i_rot)
arc_L = profile_i_arc[-1]
profile_i_arc /= arc_L
loc_LE = profile_i_arc[idx_le]
len_PS = 1. - loc_LE
## Composites
ss_idx = []
ss_start_nd_arc = []
ss_end_nd_arc = []
ps_idx = []
ps_start_nd_arc = []
ps_end_nd_arc = []
web_start_nd_arc = []
web_end_nd_arc = []
web_idx = []
# Determine spanwise composite layer elements that are non-zero at this spanwise location,
# determine their chord-wise start and end location on the pressure and suctions side
spline_arc2xnd = PchipInterpolator(profile_i_arc, profile_i_rot[:,
0])
# time1 = time.time()
for idx_sec in range(self.n_layers):
if discrete_inputs['definition_layer'][idx_sec] != 10:
if inputs['layer_thickness'][idx_sec, i] != 0.:
if inputs['layer_start_nd'][
idx_sec, i] < loc_LE or inputs['layer_end_nd'][
idx_sec, i] < loc_LE:
ss_idx.append(idx_sec)
if inputs['layer_start_nd'][idx_sec, i] < loc_LE:
# ss_start_nd_arc.append(sec['start_nd_arc']['values'][i])
ss_end_nd_arc_temp = float(
spline_arc2xnd(
inputs['layer_start_nd'][idx_sec, i]))
if ss_end_nd_arc_temp > 1 or ss_end_nd_arc_temp < 0:
exit(
'Error in the definition of material '
+ layer_name[idx_sec] +
'. It cannot fit in the section number '
+ str(i) + ' at span location ' +
str(inputs['r'][i] / inputs['r'][-1] *
100.) + ' %.')
if ss_end_nd_arc_temp == profile_i_rot[
0, 0] and profile_i_rot[0, 0] != 1.:
ss_end_nd_arc_temp = 1.
ss_end_nd_arc.append(ss_end_nd_arc_temp)
else:
ss_end_nd_arc.append(1.)
# ss_end_nd_arc.append(min(sec['end_nd_arc']['values'][i], loc_LE)/loc_LE)
if inputs['layer_end_nd'][idx_sec, i] < loc_LE:
ss_start_nd_arc.append(
float(
spline_arc2xnd(
inputs['layer_end_nd'][idx_sec,
i])))
else:
ss_start_nd_arc.append(0.)
if inputs['layer_start_nd'][
idx_sec, i] > loc_LE or inputs['layer_end_nd'][
idx_sec, i] > loc_LE:
ps_idx.append(idx_sec)
# ps_start_nd_arc.append((max(sec['start_nd_arc']['values'][i], loc_LE)-loc_LE)/len_PS)
# ps_end_nd_arc.append((min(sec['end_nd_arc']['values'][i], 1.)-loc_LE)/len_PS)
if inputs['layer_start_nd'][
idx_sec,
i] > loc_LE and inputs['layer_end_nd'][
idx_sec, i] < loc_LE:
# ps_start_nd_arc.append(float(remap2grid(profile_i_arc, profile_i_rot[:,0], sec['start_nd_arc']['values'][i])))
ps_end_nd_arc.append(1.)
else:
ps_end_nd_arc_temp = float(
spline_arc2xnd(
inputs['layer_end_nd'][idx_sec, i]))
if np.isclose(ps_end_nd_arc_temp,
profile_i_rot[-1, 0]
) and profile_i_rot[-1, 0] != 1.:
ps_end_nd_arc_temp = 1.
ps_end_nd_arc.append(ps_end_nd_arc_temp)
if inputs['layer_start_nd'][idx_sec, i] < loc_LE:
ps_start_nd_arc.append(0.)
else:
ps_start_nd_arc.append(
float(
spline_arc2xnd(
inputs['layer_start_nd'][idx_sec,
i])))
else:
target_idx = inputs['layer_web'][idx_sec] - 1
if inputs['layer_thickness'][idx_sec, i] != 0.:
web_idx.append(idx_sec)
start_nd_arc = float(
spline_arc2xnd(
inputs['web_start_nd'][int(target_idx), i]))
end_nd_arc = float(
spline_arc2xnd(
inputs['web_end_nd'][int(target_idx), i]))
web_start_nd_arc.append(start_nd_arc)
web_end_nd_arc.append(end_nd_arc)
# time1 = time.time() - time1
# print(time1)
# generate the Precomp composite stacks for chordwise regions
if np.min([ss_start_nd_arc, ss_end_nd_arc]) < 0 or np.max(
[ss_start_nd_arc, ss_end_nd_arc]) > 1:
print('Error in the layer definition at station number ' +
str(i))
exit()
upperCS[i], region_loc_ss = region_stacking(
i, ss_idx, ss_start_nd_arc, ss_end_nd_arc, layer_name,
inputs['layer_thickness'][:,
i], inputs['fiber_orientation'][:,
i],
layer_mat, material_dict, materials, region_loc_ss)
lowerCS[i], region_loc_ps = region_stacking(
i, ps_idx, ps_start_nd_arc, ps_end_nd_arc, layer_name,
inputs['layer_thickness'][:,
i], inputs['fiber_orientation'][:,
i],
layer_mat, material_dict, materials, region_loc_ps)
if len(web_idx) > 0 or flatback:
websCS[i] = web_stacking(i, web_idx, web_start_nd_arc,
web_end_nd_arc,
inputs['layer_thickness'][:, i],
inputs['fiber_orientation'][:, i],
layer_mat, material_dict, materials,
flatback, upperCS[i])
else:
websCS[i] = CompositeSection([], [], [], [], [], [])
sector_idx_strain_spar_cap_ss = [
None if regs == None else regs[int(len(regs) / 2)]
for regs in region_loc_ss[self.spar_cap_ss_var]
]
sector_idx_strain_spar_cap_ps = [
None if regs == None else regs[int(len(regs) / 2)]
for regs in region_loc_ps[self.spar_cap_ps_var]
]
sector_idx_strain_te_ss = [
None if regs == None else regs[int(len(regs) / 2)]
for regs in region_loc_ss[self.te_ss_var]
]
sector_idx_strain_te_ps = [
None if regs == None else regs[int(len(regs) / 2)]
for regs in region_loc_ps[self.te_ps_var]
]
# Get Beam Properties
beam = PreComp(inputs['r'], inputs['chord'], np.zeros_like(
inputs['r']), inputs['pitch_axis'], inputs['precurve'],
inputs['presweep'], profile, materials, upperCS,
lowerCS, websCS, sector_idx_strain_spar_cap_ps,
sector_idx_strain_spar_cap_ss, sector_idx_strain_te_ps,
sector_idx_strain_te_ss)
EIxx, EIyy, GJ, EA, EIxy, x_ec, y_ec, rhoA, area, rhoJ, Tw_iner, flap_iner, edge_iner, x_tc, y_tc, x_sc, y_sc, x_cg, y_cg = beam.sectionProperties(
)
# outputs['eps_crit_spar'] = beam.panelBucklingStrain(sector_idx_strain_spar_cap_ss)
# outputs['eps_crit_te'] = beam.panelBucklingStrain(sector_idx_strain_te_ss)
xu_strain_spar, xl_strain_spar, yu_strain_spar, yl_strain_spar = beam.criticalStrainLocations(
sector_idx_strain_spar_cap_ss, sector_idx_strain_spar_cap_ps)
xu_strain_te, xl_strain_te, yu_strain_te, yl_strain_te = beam.criticalStrainLocations(
sector_idx_strain_te_ss, sector_idx_strain_te_ps)
# Store what materials make up the composites for SC/TE
for i in range(self.n_span):
for j in range(self.n_mat):
if sector_idx_strain_spar_cap_ss[i]:
if j in upperCS[i].mat_idx[
sector_idx_strain_spar_cap_ss[i]]:
outputs['sc_ss_mats'][i, j] = 1.
if sector_idx_strain_spar_cap_ps[i]:
if j in lowerCS[i].mat_idx[
sector_idx_strain_spar_cap_ps[i]]:
outputs['sc_ps_mats'][i, j] = 1.
if sector_idx_strain_te_ss[i]:
if j in upperCS[i].mat_idx[sector_idx_strain_te_ss[i]]:
outputs['te_ss_mats'][i, j] = 1.
if sector_idx_strain_te_ps[i]:
if j in lowerCS[i].mat_idx[sector_idx_strain_te_ps[i]]:
outputs['te_ps_mats'][i, j] = 1.
outputs['z'] = inputs['r']
outputs['EIxx'] = EIxx
outputs['EIyy'] = EIyy
outputs['GJ'] = GJ
outputs['EA'] = EA
outputs['EIxy'] = EIxy
outputs['x_ec'] = x_ec
outputs['y_ec'] = y_ec
outputs['rhoA'] = rhoA
outputs['A'] = area
outputs['rhoJ'] = rhoJ
outputs['Tw_iner'] = Tw_iner
outputs['flap_iner'] = flap_iner
outputs['edge_iner'] = edge_iner
outputs["x_tc"] = x_tc
outputs["y_tc"] = y_tc
outputs["x_sc"] = x_sc
outputs["y_sc"] = y_sc
outputs["x_cg"] = x_cg
outputs["y_cg"] = y_cg
outputs['xu_strain_spar'] = xu_strain_spar
outputs['xl_strain_spar'] = xl_strain_spar
outputs['yu_strain_spar'] = yu_strain_spar
outputs['yl_strain_spar'] = yl_strain_spar
outputs['xu_strain_te'] = xu_strain_te
outputs['xl_strain_te'] = xl_strain_te
outputs['yu_strain_te'] = yu_strain_te
outputs['yl_strain_te'] = yl_strain_te
# Compute mass and inertia of blade and rotor
blade_mass = np.trapz(rhoA, inputs['r'])
blade_moment_of_inertia = np.trapz(rhoA * inputs['r']**2., inputs['r'])
tilt = inputs['uptilt']
n_blades = discrete_inputs['n_blades']
mass_all_blades = n_blades * blade_mass
Ibeam = n_blades * blade_moment_of_inertia
Ixx = Ibeam
Iyy = Ibeam / 2.0 # azimuthal average for 2 blades, exact for 3+
Izz = Ibeam / 2.0
Ixy = 0.0
Ixz = 0.0
Iyz = 0.0 # azimuthal average for 2 blades, exact for 3+
# rotate to yaw c.s.
I = DirectionVector(Ixx, Iyy, Izz).hubToYaw(
tilt) # because off-diagonal components are all zero
I_all_blades = np.r_[I.x, I.y, I.z, Ixy, Ixz, Iyz]
outputs['blade_mass'] = blade_mass
outputs['blade_moment_of_inertia'] = blade_moment_of_inertia
outputs['mass_all_blades'] = mass_all_blades
outputs['I_all_blades'] = I_all_blades
# Placeholder - rotor cost
bcm = blade_cost_model(verbosity=self.verbosity)
bcm.name = ''
bcm.materials = {}
bcm.mat_options = {}
bcm.mat_options['core_mat_id'] = np.zeros(self.n_mat)
bcm.mat_options['coating_mat_id'] = -1
bcm.mat_options['le_reinf_mat_id'] = -1
bcm.mat_options['te_reinf_mat_id'] = -1
for i_mat in range(self.n_mat):
name = discrete_inputs['mat_name'][i_mat]
# if name != 'resin':
bcm.materials[name] = {}
bcm.materials[name]['id'] = i_mat + 1
bcm.materials[name]['name'] = discrete_inputs['mat_name'][i_mat]
bcm.materials[name]['density'] = inputs['rho'][i_mat]
bcm.materials[name]['unit_cost'] = inputs['unit_cost'][i_mat]
bcm.materials[name]['waste'] = inputs['waste'][i_mat] * 100.
if discrete_inputs['component_id'][i_mat] > 1: # It's a composite
bcm.materials[name]['fiber_density'] = inputs['rho_fiber'][
i_mat]
bcm.materials[name]['area_density_dry'] = inputs[
'rho_area_dry'][i_mat]
bcm.materials[name]['fvf'] = inputs['fvf'][i_mat] * 100.
bcm.materials[name]['fwf'] = inputs['fwf'][i_mat] * 100.
bcm.materials[name]['ply_t'] = inputs['ply_t'][i_mat]
if discrete_inputs['component_id'][
i_mat] > 3: # The material does not need to be cut@station
bcm.materials[name]['cut@station'] = 'N'
else:
bcm.materials[name]['cut@station'] = 'Y'
bcm.materials[name]['roll_mass'] = inputs['roll_mass'][
i_mat]
else:
bcm.materials[name]['fvf'] = 100.
bcm.materials[name]['fwf'] = 100.
bcm.materials[name]['cut@station'] = 'N'
if discrete_inputs['component_id'][i_mat] <= 0:
bcm.materials[name]['ply_t'] = inputs['ply_t'][i_mat]
if discrete_inputs['component_id'][i_mat] == 0:
bcm.mat_options['coating_mat_id'] = bcm.materials[name][
'id'] # Assigning the material to the coating
elif discrete_inputs['component_id'][i_mat] == 1:
bcm.mat_options['core_mat_id'][
bcm.materials[name]['id'] -
1] = 1 # Assigning the material to the core
elif discrete_inputs['component_id'][i_mat] == 2:
bcm.mat_options['skin_mat_id'] = bcm.materials[name][
'id'] # Assigning the material to the shell skin
elif discrete_inputs['component_id'][i_mat] == 3:
bcm.mat_options['skinwebs_mat_id'] = bcm.materials[name][
'id'] # Assigning the material to the webs skin
elif discrete_inputs['component_id'][i_mat] == 4:
bcm.mat_options['sc_mat_id'] = bcm.materials[name][
'id'] # Assigning the material to the spar caps
elif discrete_inputs['component_id'][i_mat] == 5:
bcm.mat_options['le_reinf_mat_id'] = bcm.materials[name][
'id'] # Assigning the material to the le reinf
bcm.mat_options['te_reinf_mat_id'] = bcm.materials[name][
'id'] # Assigning the material to the te reinf
bcm.upperCS = upperCS
bcm.lowerCS = lowerCS
bcm.websCS = websCS
bcm.profile = profile
bcm.chord = inputs['chord']
bcm.r = inputs['r'] - inputs['r'][0]
bcm.bladeLength = inputs['r'][-1] - inputs['r'][0]
bcm.le_location = inputs['pitch_axis']
blade_cost, blade_mass = bcm.execute_blade_cost_model()
outputs['total_blade_cost'] = blade_cost
outputs['total_blade_mass'] = blade_mass
get_cp_cm = CCBlade(r, chord, twist, af, hub_r, Rtip, B, rho, mu, cone, tilt,
0., shearExp, hub_height, nSector, presweep, precurve[-1],
presweep, presweep[-1], tiploss, hubloss, wakerotation,
usecd)
# get_cp_cm.induction = True
Omega = Uhub * tsr / Rtip * 30.0 / np.pi # Rotor speed
myout, derivs = get_cp_cm.evaluate([Uhub], [Omega], [pitch], coefficients=True)
P, T, Q, M, CP, CT, CQ, CM = [
myout[key] for key in ['P', 'T', 'Q', 'M', 'CP', 'CT', 'CQ', 'CM']
]
get_cp_cm.induction_inflow = True
loads, deriv = get_cp_cm.distributedAeroLoads([Uhub], Omega, pitch, 0.)
########## Post Process Output ##########
# Compute forces in the airfoil coordinate system, pag 21 of https://www.nrel.gov/docs/fy13osti/58819.pdf
P_b = DirectionVector(loads['Np'], -loads['Tp'], 0)
P_af = P_b.bladeToAirfoil(twist)
# Compute lift and drag forces
F = P_b.bladeToAirfoil(twist + loads['alpha'] + pitch)
# Print output .dat file with the quantities distributed along span
np.savetxt(
os.path.join(output_folder, 'distributed_quantities.dat'),
np.array([
s, r, loads['alpha'], loads['a'], loads['ap'], loads['Cl'],
loads['Cd'], F.x, F.y, loads['Np'], -loads['Tp'], P_af.x, P_af.y
]).T,
header=
'Blade nondimensional span position (-) \t Rotor position (m) \t Angle of attack (deg) \t Axial induction (-) \t Tangential induction (-) \t Lift coefficient (-) \t Drag coefficient (-) \t Lift force (N) \t Drag force (N) \t Force along x BCS - N (N) \t Force along y BCS - T (N) \t Force along x ACS (N) \t Force along y ACS (N)',
delimiter='\t')
# Print output .dat file with the rotor equivalent quantities
np.savetxt(