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B/mtd #51

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Jan 4, 2021
Merged

B/mtd #51

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284c7b2
margin, not ratio for max blade tip deflection
ptrbortolotti Dec 31, 2020
d08cabf
fix typo
ptrbortolotti Dec 31, 2020
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2 changes: 1 addition & 1 deletion examples/02_control_opt/analysis_options.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,7 @@ constraints:
max: 3500.e-6 # Value of maximum strains [-]
tip_deflection:
flag: False # Constraint that maximum tip deflection cannot exceed 70% of tower clearance. Only for upwind rotors
ratio: 0.8
margin: 1.4175
rail_transport:
flag: False
8_axle: False
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2 changes: 1 addition & 1 deletion examples/05_IEA-3.4-130-RWT/analysis_options.yaml
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Expand Up @@ -99,7 +99,7 @@ constraints:
max: 3500.e-6 # Value of maximum strains [-]
tip_deflection:
flag: False # Constraint that maximum tip deflection cannot exceed 70% of tower clearance. Only for upwind rotors
ratio: 0.8
margin: 1.4175
rail_transport:
flag: False
8_axle: False
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2 changes: 1 addition & 1 deletion examples/06_IEA-15-240-RWT/analysis_options.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,7 @@ constraints:
max: 3500.e-6 # Value of maximum strains [-]
tip_deflection:
flag: False # Constraint that maximum tip deflection cannot exceed 70% of tower clearance. Only for upwind rotors
ratio: 0.8
margin: 1.4175
rail_transport:
flag: False
8_axle: False
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2 changes: 1 addition & 1 deletion examples/07_te_flaps/analysis_options.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,7 @@ constraints:
max: 3500.e-6 # Value of maximum strains [-]
tip_deflection:
flag: True # Constraint that maximum tip deflection cannot exceed 70% of tower clearance. Only for upwind rotors
ratio: 0.8
margin: 1.4175
rail_transport:
flag: False
8_axle: False
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11 changes: 6 additions & 5 deletions weis/glue_code/gc_PoseOptimization.py
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Expand Up @@ -254,7 +254,7 @@ def set_constraints(self, wt_opt):

if blade_constraints['tip_deflection']['flag']:
if self.blade_opt['structure']['spar_cap_ss']['flag'] or self.blade_opt['structure']['spar_cap_ps']['flag']:
wt_opt.model.add_constraint('tcons.tip_deflection_ratio', upper=blade_constraints['tip_deflection']['ratio'])
wt_opt.model.add_constraint('tcons.tip_deflection_ratio', upper=1.0)
else:
print('WARNING: the tip deflection is set to be constrained, but spar caps thickness is not an active design variable. The constraint is not enforced.')

Expand Down Expand Up @@ -401,13 +401,14 @@ def set_initial(self, wt_opt, wt_init):
if max(wt_opt['blade.opt_var.twist_opt_gain']) > 1. or min(wt_opt['blade.opt_var.twist_opt_gain']) < 0.:
print('Warning: the initial twist violates the upper or lower bounds of the twist design variables.')

blade_constraints = self.opt['constraints']['blade']
blade_constr = self.opt['constraints']['blade']
wt_opt['blade.opt_var.s_opt_chord'] = np.linspace(0., 1., self.blade_opt['aero_shape']['chord']['n_opt'])
wt_opt['blade.ps.s_opt_spar_cap_ss'] = np.linspace(0., 1., self.blade_opt['structure']['spar_cap_ss']['n_opt'])
wt_opt['blade.ps.s_opt_spar_cap_ps'] = np.linspace(0., 1., self.blade_opt['structure']['spar_cap_ps']['n_opt'])
wt_opt['rs.constr.max_strainU_spar'] = blade_constraints['strains_spar_cap_ss']['max']
wt_opt['rs.constr.max_strainL_spar'] = blade_constraints['strains_spar_cap_ps']['max']
wt_opt['stall_check.stall_margin'] = blade_constraints['stall']['margin'] * 180. / np.pi
wt_opt['rs.constr.max_strainU_spar'] = blade_constr['strains_spar_cap_ss']['max']
wt_opt['rs.constr.max_strainL_spar'] = blade_constr['strains_spar_cap_ps']['max']
wt_opt['stall_check.stall_margin'] = blade_constr['stall']['margin'] * 180. / np.pi
wt_opt["tcons.max_allowable_td_ratio"] = blade_constr["tip_deflection"]["margin"]

return wt_opt

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