# lingyun

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8

1. ## Selection of Best Optimization Algorithm

I am optimizing the radius of the lattice structure. How can I use other optimization algorithms? For example, Method of Feasible Directions (MFD), Adaptive Response Surface Method (ARSM), Genetic Algorithm..., and what is the default optimization algorithm?Thank you very much!
2. ## How to use other algorithms than the default optimization algorithm when doing the size optimization

I am optimizing the radius of the lattice structure. How can I use other optimization algorithms? For example, Method of Feasible Directions (MFD), Adaptive Response Surface Method (ARSM), Genetic Algorithm..., and what is the default optimization algorithm?Thank you very much!
3. ## how to combine all 1D elements in a model

there are many short 1d elements in a model, and in order to simplify the model these elements can be combine to a long 1d elements. how to combine all 1D elements in a model ?
4. ## how to display the stress field streamline of a model?

how to display the stress field streamline of a model like the pic below?
5. ## How to build a lattice structure from a mesh file or some coordinate of beams？

Yes, I only have coordinates of beams.Could you please send me your script.Thank you very much!
6. ## How to build a lattice structure from a mesh file or some coordinate of beams？

Thanks for yours nice answer, and I have one more question "How to do this things by tcl codes instead of interactive operation?".Is there any examples or tutorials can help me do this thing? Thank you very much again!
7. ## How to build a lattice structure from a mesh file or some coordinate of beams？

Is there any codes or any tutorials can help me do this thing? Thank you very much!
8. ## How to build a lattice structure from a mesh file or some coordinate of beams？

Hello If there is a mesh file（like obj or stl files）or coordinates of beams，just like the pic below，how can i build a lattice structure（replace each edge of mesh with a cylindrical beam） in the OptiStruct quickly？ I thank you in advance for your help!
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