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You can either create the geometry directly in MSC Apex Generative Design or import already existing files. You can import .xb, .xt, .step, and .sldprt files into the program.
Import/create the Design spaceSpaceincluding theNondesign spacesNon-Design Spacesin MSC Apex Generative Design 2020 as one solid. For this Jet Engine Bracket the already prepared Design spaceSpace was imported.
Create the material in the Materials editor and assign it to the Design spaceSpace
The specific values needed are the Young's Modulus (115e3 MPa), Poisson ratio (0.3) and density Density (4.40e-6 kg/mm3)
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Nondesign spaces Non-Design Spaces have to be selected using the optimisation Tools. In this case the four fixation points and two force application points are selected and a Nondesign spacesNon-Design Spaces with an offset of 3 mm is created for each.
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To apply the forces the Loads & Boundary Condition Tool is needed. Select cells on the left side. By disabling the Thunderbolt (tool execution mode selector) on the top, both Nondesign spaces Non-Design Spaces can be selected simultaneously. In the Orientation field an external (local) coordinate system can be selected (coordinate system 1).
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Two loads are created (Force - Moment 1 and Force - Moment 2) with the given values in the table in z- and x-direction which are applied on both Nondesign spaces Non-Design Spaces. The fourth condition (Force - Moment 4) is also attached on both Nondesign spaces Non-Design Spaces referring to coordinate system 1.
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Force - Moment 3 is also applied on both Nondesing spaces Non-Desing Spaces in z-direction. Now the orientation is referred to the coordinate system 2.
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One constraints which includes all four fixated Nondesing spacesNon-Desing Spaces is created:
Name | Direction |
|---|---|
Constraint 1 | x, y, z (=0) |
Therefore, the Loads & Boundary Condition Tool is needed. Under Displacement Constraints a “clamped” constraint can be chosen, which locks translations in all three directions. On the left side of the Tool the relevant geometry choice can be selected. In this case surfaces are selected to attach the constraints on the Nondesing spacesNon-Desing Spaces.
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Step 4: Definition of load cases
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All boundary conditions must be assigned to specific load cases, which are defined as Events. The number of Eventscan be changed by adding/deleting Eventsto the Meshless Generative Design Scenario. The assignment of the boundary conditions to the Events can be made in the Loads & Constrains Window. The already created loads and constraints that concern the Design spaceSpace are listed in this window and can be activated for each Eventindividually.
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