stringer areas

3 files changed, 40 insertions, 33 deletions

diff --git a/creator.py b/creator.py
index 138fffb..c7bbf03 100644
--- a/creator.py
+++ b/creator.py
@@ -69,10 +69,6 @@ class Coordinates:
     def __str__(self):

         return type(self).__name__

 

-    def add_area(self, area):

-        self.area = area

-        return None

-

     def print_info(self, round):

         """

         Print all the component's coordinates to the terminal.

@@ -301,6 +297,7 @@ class Stringer(Coordinates):
 

     def __init__(self):

         super().__init__(parent.chord, parent.semi_span)

+        self.area = float()

 

     def add_coord(self, airfoil_coord, spar_coord,

                   stringer_u_1, stringer_u_2, stringer_l_1, stringer_l_2):

@@ -333,6 +330,7 @@ class Stringer(Coordinates):
             spar_z_l = spar_coord[3]

         except:

             print('Unable to initialize stringers. Were spars created?')

+

         # Find distance between leading edge and first upper stringer

         interval = spar_x_u[0] / (stringer_u_1 + 1)

         # initialise first self.stringer_x_u at first interval

@@ -370,12 +368,21 @@ class Stringer(Coordinates):
             self.x_l.append(airfoil_x_l[index])

             self.z_l.append(airfoil_z_l[index])

             x += interval

-

         super().pack_info()

         return None

 

+    def add_area(self, area):

+        self.area = area

+        return None

+

     def add_mass(self, mass):

         self.mass = len(self.x_u) * mass + len(self.x_l) * mass

+        return None

+

+    def print_info(self, round):

+        super().print_info(round)

+        print('Stringer Area:\n', np.around(self.area, round))

+        return None

 

 

 def plot(airfoil, spar, stringer):

diff --git a/evaluator.py b/evaluator.py
index f3a05f4..4a65a4e 100644
--- a/evaluator.py
+++ b/evaluator.py
@@ -20,6 +20,8 @@ def get_centroid(airfoil):
     pass
 
 
-def get_mass(*component):
-    for _ in len(component):
-        mass += component.mass
+def get_total_mass(self, *component):
+    total_mass = float()
+    for _ in component:
+        total_mass += _.mass
+    return total_mass
diff --git a/main.py b/main.py
index 1e591fd..be49d2f 100644
--- a/main.py
+++ b/main.py
@@ -24,18 +24,25 @@ start_time = time.time()
 CHORD_LENGTH = 100
 SEMI_SPAN = 200
 
-# mass
+# m=Mass
 AIRFOIL_MASS = 100  # lbs
 SPAR_MASS = 10  # lbs
 STRINGER_MASS = 5  # lbs
 
+# Area
+STRINGER_AREA = 0.1  # sqin
+
 # population information
 POP_SIZE = 1
 SAVE_PATH = 'C:/Users/blend/github/UCLA_MAE_154B/save'
 
 
-def create():
-    '''Create an airfoil.'''
+def main():
+    '''
+    Create an airfoil;
+    Evaluate an airfoil;
+    Generate a population of airfoils & optimize.
+    '''
 
     # Create coordinate system specific to our airfoil dimensions.
     # TODO: imperial + metric unit setting
@@ -49,7 +56,7 @@ def create():
         # Define NACA airfoil coordinates and mass
         af.add_naca(2412)
         af.add_mass(AIRFOIL_MASS)
-        af.print_info(2)
+        # af.print_info(2)
 
         # Create spar instance
         af.spar = creator.Spar()
@@ -57,41 +64,32 @@ def create():
         af.spar.add_coord(af.coord, 0.15)
         af.spar.add_coord(af.coord, 0.55)
         af.spar.add_mass(SPAR_MASS)
-        af.spar.print_info(2)
+        # af.spar.print_info(2)
 
         # Create stringer instance
         af.stringer = creator.Stringer()
         # Compute the stringer coordinates from their quantity in each zone
         af.stringer.add_coord(af.coord, af.spar.coord, 4, 7, 5, 6)
+        af.stringer.add_area(STRINGER_AREA)
         af.stringer.add_mass(STRINGER_MASS)
         af.stringer.print_info(2)
 
         # Plot components with matplotlib
-        creator.plot(af, af.spar, af.stringer)
+        # creator.plot(af, af.spar, af.stringer)
 
         # Save component info
-        af.save_info(SAVE_PATH, _)
-        af.spar.save_info(SAVE_PATH, _)
-        af.stringer.save_info(SAVE_PATH, _)
-
-    # Print final execution time
-    print("--- %s seconds ---" % (time.time() - start_time))
-
+        # af.save_info(SAVE_PATH, _)
+        # af.spar.save_info(SAVE_PATH, _)
+        # af.stringer.save_info(SAVE_PATH, _)
 
-def evaluate():
-    '''Evaluate previously created airfoil(s).'''
-    pass
+    # Evaluate previously created airfoil(s).
+    total_mass = evaluator.get_total_mass(af, af.spar, af.stringer)
 
+    # Iteratively evaluate airfoils by defining genetic generations.
+    # pass
 
-def generate():
-    '''Iteratively evaluate airfoils by defining genetic generations.'''
-    pass
-
-
-def main():
-    create()
-    evaluate()
-    generate()
+    # Print final execution time
+    print("--- %s seconds ---" % (time.time() - start_time))
 
 
 if __name__ == '__main__':