Fixing concentrated mass to the shell component

[krystian_przepiorka]

Hi all,

Recently during my work on surface model some issue appeared. Lets say that the purpose is to analyze simple beam with C shape profile as on picture below. To some point (generally random) I would like to apply concentrated mass. The load is gravity field, beam is fixed at the free end. I generated examplary mesh (mesh density doesnt matter) and the question are :

• Is it possible to apply concentrated mass to a node of a mesh ? 
• Is it possible to apply concentrated mass to a created point on a surface ?

or only way to do it is to separate from surface some small area and apply concentrated mass using connector ? 

Best regards, 

Krystian

[John_Holtz · Accepted solution]

Hi Krystian,

Inventor can only apply items to CAD geometry. Thus, your third suggestion is what you want to do: create some geometry, optionally apply a connector, and add the concentrated mass. In most cases, you create a sketch and use the sketch to split the face. If you create a rectangle in the sketch, you can apply the concentrated mass to any corner of the split face. If you create a circle in the sketch, then you can apply a connector to the circle (edge or area) and put the mass at the center of the connector.

Let us know if you have any questions.

John

[krystian_przepiorka]

Hi John,

Thanks for explanation. You wrote "optionally aplly a conector" so from my understanding if we use rectangle we dont need to apply any conector because we have corners. In case when we use circle to split the surface we have to apply conector because we dont have any point to fix mass. I practised it on my model and it works. 

Thanks,

Krystian