Point mass in Optistruct
Altair EmployeeAnswers
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Hi,
Use Masses in 1D panel to create point mass.
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You will also have to connect the mass element to the body using rigid elements
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Hi Rahul,
I am finding the forum really helpful. I used RBE3 to connect the point masses to the structural members, and assigned values using CONM2.
How do I separate the non-design components - which in my case are the mounting points? How do I exclude them from the optimization process? Do I have to create spider rigids in bolt locations?Thanks,
Ginobili
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to define a Non-Design Space for optimization, you need to create a separate component and property. It is necessary to either separate the areas on a geometry level (i.e. before meshing) or on the element level (after meshing).
After meshing, you still can move areas to the Non-Design component. Please use the 'organize' function within HyperMesh.
The following movie shows all necessary steps on a simple part:
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Hi,
I have created the point mass and attached it to the component by RBE3 element. I have 2 questions,
1) Which property I should assign for the RBE3 component??
2) which material I should assign to the RBE3 component??
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RBE 3 elements do not require any material and properties as they are working as interpolation elements. You can run without assigning anything to it
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Altair Forum User said:
Hi,
I have created the point mass and attached it to the component by RBE3 element. I have 2 questions,
1) Which property I should assign for the RBE3 component??
2) which material I should assign to the RBE3 component??
RBE3 and RBE2 don't need element or property. If you are using mass with any beam or rod elements, they require property and material
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