Mastering Connections in Altair Inspire: Create and Modify Bushings, Connectors (Spider) with Python APIs

Bushings

Create bushings between the selected surfaces of the parts.

With bushings, you can create connections with multi-directional stiffness and mass properties between two set of surfaces of two parts. This helps capture the physics and more accurately correlate results within an assembly.​
Creating Bushings and Modify it properties
from hwx import inspire  #clear the existing model and create a fresh session.  model = inspire.newModel() #Creating a solid block with default dimensions (x=1m, y=1m, z=1m)  box1 = model.createSolidBlock() #Move the part object to (-2,0,0) location  box1 .translate(x=-2, y=0, z=0) #Creating a solid block with default dimensions (x=1m, y=1m, z=1m)  box2 = model.createSolidBlock() #Query a feature planar from box1 part object. face1 = box1.getFeatures(inspire.FeaturePlanar)[5] #Query a feature planar from box2 part object. face2 = box2.getFeatures(inspire.FeaturePlanar)[2] # Create Bushing bushing = inspire.Bushing(primaryFeatures=face1, secondaryFeatures=face2, name ='Bushing 1') # Fit the model to the screen.  inspire.fitView()  #Modify the existing bushing  #Query an existing bushing with name  'Bushing 1' bushing = model.getChild(type ='Bushing', name = 'Bushing 1')  #Modify the name of the bushings bushing.name = 'bushing connector'  #Modify Translational stiffness of Bushing ( TX, TY, TZ ) bushing.stiffness =[100.0, 100.0, 100.0]  #Modify damping stiffness of Bushing ( TX, TY, TZ ) bushing.damping=[100.0, 100.0, 100.0]   #Modify forcePreload of Bushing  ( FX, FY, FZ ) bushing.forcePreload = [100.0, 100.0, 100.0]   #Modify angularStiffness  of Bushing ( RX, RY, RZ ) bushing.angularStiffness=[100.0, 100.0, 100.0]   #Modify angular Damping of Bushing  ( RX, RY, RZ ) bushing.angularDamping=[100.0, 100.0, 100.0]   #Modify torque Preload  of Bushing bushing.torquePreload=[100.0, 100.0, 100.0]   #Modify mass  of Bushing bushing.mass='100 kg' 

Creating a Grounded bushing

from hwx import inspire  #clear the existing model and create a fresh session.  model = inspire.newModel() #Creating a solid block with default dimensions (x=1m, y=1m, z=1m)  box1 = model.createSolidBlock() #Move the part object to (-2,0,0) location  box1 .translate(x=-2, y=0, z=0) #Creating a solid block with default dimensions (x=1m, y=1m, z=1m)  box2 = model.createSolidBlock() #Query a feature planar from box1 part object. face1 = box1.getFeatures(inspire.FeaturePlanar)[5] #Query a feature planar from box2 part object. face2 = box2.getFeatures(inspire.FeaturePlanar)[2]  # Create grounded Bushing bushing = inspire.Bushing(primaryFeatures=face1, secondaryFeatures=face2, name ='Bushing 1',grounded=True)  # Fit the model to the screen.  inspire.fitView()  

Interactively select the features to create bushings

 from hwx import inspire  #import debug module to use picking context.  from hwx.inspire.gui import debug  #get existing model model = inspire.getModel()  # Create a context to pick area feature from the model.  #This context allows you to pick interested feature to pick from the model  # Once the  interested feature is picked you can swipe left to exit the selection mode.   primaryFeatures= debug.pick('FeatureArea',multi=True, helpMessage="Pick primary  features and exit the context to pick secondary features. ") secondaryFeatures= debug.pick('FeatureArea',multi=True, helpMessage="Pick secondary features  and exit the context to create bushings. ")                     # Create Bushing bushing = inspire.Bushing(primaryFeatures, secondaryFeatures)  

 

Connectors (Spiders)

Connectors link points, edges, or faces to each other, and are shown as red lines radiating from a central point. They are generally used to connect two parts together, or to apply a load or support at a distance.

 

 from hwx import inspire  #clear the existing model and create a fresh session.  model = inspire.newModel() #Creating a solid block with default dimensions (x=1m, y=1m, z=1m)  box1 = model.createSolidBlock() #Move the part object to (-2,0,0) location  box1 .translate(x=-2, y=0, z=0) #Creating a solid block with default dimensions (x=1m, y=1m, z=1m)  box2 = model.createSolidBlock() #Query a feature planar from box1 part object. face1 = box1.getFeatures(inspire.FeaturePlanar)[5] #Query a feature planar from box2 part object. face2 = box2.getFeatures(inspire.FeaturePlanar)[2] #Creating connector/spider between two faces.  spider = inspire.Spider(face1 , face2)  inspire.fitView()  #modify the spider/connector properties. #query a connector with name 'Connector 1'. spider = model.getChild(type='Spider', name ='Connector 1' )  #Modify the connector / spider type to 'Flexible'. spider.connectionType ='Flexible'  #Modify the connector / spider type to 'Rigid'. spider.connectionType ='Rigid'  

 

Interactively select the features to create bushings

  from hwx import inspire  #import debug module to use picking context.  from hwx.inspire.gui import debug  #get existing model model = inspire.getModel()  # Create a context to pick area feature from the model.  #This context allows you to pick interested feature to pick from the model  # Once the  interested feature is picked you can swipe left to exit the selection mode.   features= debug.pick('Feature',multi=True, helpMessage="Pick two  features and exit the context to create connector. ")     # Create spider spider = inspire.Spider(features[0],features[1])   

 

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