addCreep functionality added to project and mooring:

- defaults to 0.02 (2%). It updates all polyester sessions in all mooring lines within the project class.

Author: Yuksel-Rudy

famodel/mooring/mooring.py

@@ -1120,7 +1120,24 @@ def addCorrosion(self,corrosion_mm=10):
                 MBL_cor = sec['type']['MBL']
             sec['type']['MBL'] = MBL_cor
 
+    def addCreep(self, creep_precent=0.02):
+        '''
+        Elongates the polyester lines (if exists) in the mooring by a certain creep percentage
+
+        Parameters
+        ----------
+        creep_precent : float, optional
+            Percentage of creep elongation to add to polyester lines. The default is 0.02 (2%).
 
+        '''
+        if self.ss:
+            for i, line in enumerate(self.ss.lineList):
+                if line.type['material']=='polyester':
+                    L_creep = line.L * (1 + creep_precent)
+                    self.setSectionLength(L_creep, i)
+        else:
+            raise ValueError('Mooring subsystem must be created before adding creep.')
+            
     def getEnvelope(self,ang_spacing=45,SFs=True):
         '''Computes the motion envelope of the Mooring based on the watch 
         circle(s) of what it's attached to. If those aren't already 

famodel/project.py

@@ -3534,7 +3534,23 @@ def getCorrosion(self,corr_th=10,lines='all'):
         for ii,i in enumerate(idx):
             self.mooringList[i].addCorrosion(corrosion_mm=corr_th)
 
-    
+    def addCreep(self, creep_precent=0.02):
+        '''
+        Function to add creep to all mooring lines in the project
+
+        Parameters
+        ----------
+        creep_precent : float, optional
+            Percentage of line length to add as creep. The default is 0.02 (2%).
+
+        Returns
+        -------
+        None.
+
+        '''
+        for moor in self.mooringList.values():
+            moor.addCreep(creep_precent=creep_precent)
+
     def updateUniformArray(self,n_rows,pf_rows,spacingXY,grid_rotang=0,grid_skew_x=0,grid_skew_y=0,grid_trans_x=0,grid_trans_y=0,phis=[0,0],center=[0,0]):
         '''
         Function to update the array spacing, angles, platform locations and headings, etc for a uniform array