November 28, 2018 at 1:08 pmchristopherSubscriber
I would like to do a topology optimization of an assambly of two parts as shown below. The parts must be build in two pieces and for reasons the build direction of Part 1 and Part 2 are in different directions. In ANSYS Mechanical I just find the option to define the AM overhang constraint for the entire optimization space.
Is it possible somehow to define different AM overhang constraints for both parts?
November 28, 2018 at 4:05 pmSandeep MedikondaAnsys Employee
The AM Overhang Constraint creates an Overhang Angle constraint that uses the input of Overhang Angle and Build Direction to create self-supporting structures. The main idea is that a structure optimized using AM Overhang Constraint can then be 3D printed without adding supports. Based on what you are showing, I don't think it is even feasible to print that part? Printing typically happens incrementally in the +ve Z-Direction.
You can try using the manufacturing constraint or the symmetry constraint? For these constraints, you can use geometry selection or the named selections.
Best Practices on the Student Community
November 28, 2018 at 4:11 pmchristopherSubscriber
Thanks for your answer.
Both parts would be printed as single pieces and have a slightly different geometry. Just in the load case they are in contact. And there are reasons why each of them has to be printed in the shown direction.
November 28, 2018 at 4:27 pmSandeep MedikondaAnsys Employee
Ahh, I see. Please note these important points about the Manufacturing constraint:
Important: Note the following restrictions and requirements. The AM Overhang Constraint:
- Can be specified only once in a Topology Optimization analysis.
- Cannot be used in combination with the Manufacturing Constraints Member Size (with Maximum Member Size defined), Extrusion, or Pull Out Direction.
- If used with Symmetry Manufacturing Constraint, the Build Direction of the AM Overhang constraint must be in the symmetry plane.
- If used with the Cyclic Manufacturing Constraint, the Build Direction of the AM Overhang constraint must be parallel to the Axis selection of the Cyclic constraint.
P.S: Please close discussions when your original question has been answered. Guidelines on S.C.
- You must be logged in to reply to this topic.
Simulation World 2022
Check out more than 70 different sessions now available on demand. Get inspired as you hear from visionary companies, leading researchers and educators from around the globe on a variety of topics from life-saving improvements in healthcare, to bold new realities of space travel. Take a leap of certainty and check out a session today here.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- How to calculate the residual stress on a coating by Vickers indentation?
- Solver Pivot Warning in Beam Element Model
- Errors – Reinforced Concrete Beam
- An Unknown error occurred during solution. Check the Solver Output…..
- The solver engine was unable to converge on a solution for the nonlinear problem as constrained.
- whether have the difference between using contact and target bodies
- Massive amount of memory (RAM) required for solve
- Cannot apply load on node
- Saving & sharing of Working project files in .wbpz format
- Colors and Mesh Display