Magnet Spacers Design Automation

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Magnet Spacers Design AutomationRoxie2Catia Catia Forum – Sept. 29th

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Magnet Spacers Design AutomationRoxie2Catia

- What is a Magnet Spacer?- Process- The Roxie2Catia tool- Result- Improvements

Summary

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- In a dipole, the spacers are here to guide and separate the different layers of a coil.- It's a set of parts with a very specific shape.- The basic shape is a cylinder, which is split by many ruled surfaces.- The purpose is to make sure that the coil's winding is perfect, a pre-requirement for a good quality magnetic field.

What is a Magnet Spacer?

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1. Define the design of each part.-> ROXIE application

2. Build the shapes with a CAD software.-> ROXIE2CATIA tool

3. Manufacturing prototypes.4. After prototypes validation, production.

The Process

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ROXIE (Routine for the Optimization of coil X-sections, Inverse computation, and End design)

• ROXIE is a software for– the electromagnetic design and simulation of accelerator

magnets.• Key features (not available in commercial products)

– 2D coil design– 3D coil end design– FE-BE coupling– superconductor effects– quench simulation.

• All superconducting LHC magnets designed with ROXIE.

• Licenses are sold via Technology Transfer to all major accelerator-technology labs.

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ROXIE in Accelerator Magnet Design

Quench Margins

Fixing the Cross-Section

Mechanical End Design

Magnetic End Design

Determine Yoke CutbackEndspacers: Catia and CAD/CAM Interface

Quench Simulation Production Follow-Up& Operations Trouble-Shooting

Persistent Currents

Cable Data (Input) Coil Variants Multipole VariationYoke Simulation EM Forces


Purpose:As a result, Roxie provides a text file, with points coordinates.The Roxie2Catia tool as been made to help the designer to build a magnet spacer set from these points.The main steps to do this are explained in the following slides.

The Roxie2Catia tool

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Main features:This tool is an expert tool.

- > Skills in GSD & knowledge workbenches are necessary.

- > The tool is available on the network.- > There is one dedicated user trained to use it.- > 3 icons can be created in Catia V5 (personal settings)

to launch the different functions.


- Help / Guide- Export as Step- Run the Roxie2Catia Tool

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-Inputs:- > Text file with points coordinates


-Each group of points corresponds to the definition to an half-edge.

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-1st step:- > Sort these groups of points, to put together the

points that define a surface :- 4 groups for the 2 end shapes- 8 groups for the others


-The points are temporally stored and sorted in Excel.

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-2nd step:- > Importing these points to Catia in a new Part


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-3rd step:- > Build the cylinder based on these points


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-4th step:- > Creating the rules on each couple of points.

Each point is projected on the cylinder internal or external surface.Then the rules (lines) are created.


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-5th step:- > Creating the ruled surfaces that rely on the sets of

rules.Each surface should have a continuity in tangency, and


a null Surface Curvature.

The surfaces are extrapolated to make sure that it will be possible to split the cylinder later.

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-6th step:- > Splitting the cylinder to create the spacers.


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-Result:- > Splitting the cylinder to create the spacers.


The final result is a fully parametric Part.The user can modify the geometry as whished, if necessary.

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After the spacers have been created, we have to ensure that the spacers and the coils are fully compatible.

Result

Some additional features have also to be manually added.

Then the prototypes can be manufactured.

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If the result has to be shared with others institutes that don't use Catia V5, an export function can generate a set of Step files.Each shape is saved as a step.

Result

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At this time, the Roxie2Catia tool manage to realize spacers, even if sometimes the user has to perform manual updates.

The Macro doesn't generate the coils. The users have to use the VRML (*.WRL) files provided by Roxie.It is not a blocking point, but native Catia V5 coils could ease the drafting and save time to store the coils in SmarTeam.

Improvements

The interface has to be improved to be more user-friendly, and a guide has to be written.

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Thanks for your attention.

Special thanks to Ludovic F. & Bernhard A. for the explanations and pictures.

Magnet Spacers Design Automation

Documents

Transcript of Magnet Spacers Design Automation