Exploring the capabilities of ANSYS AIM on a superconducting accelerator magnet model

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Because ...

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1 Worldwide

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• Static/Transient Structural,

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Element Method)

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propagation

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Design Engineering and Easy Multiphysics Simulation

…the next generation multi-physics software from ANSYS.

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Why AIM?

“Simulation for every Engineer”

Solvers

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SpaceClaim

Integrated

Geometry Modeling

Design Of Experiments Design Space Optimization

Optimization

Fluid - Thermal FSI Magnetic-Thermal Fluid-Solid Heat Transfer

Integrated

Multi-physics

simulation Fluent Structural Electromagnetic Thermal


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Case Study: Design & Multi-physics analysis of a superconducting magnet

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Design Magnetic Analysis Structural Analysis

Steps… Excellence through Engineering Simulation

• Parametric Design

• Preparation for simulation

• Drawings

• Rendering

• Ramp-up to a magnetic field

gradient of 145 T/m

• Welding of outer shell

• Pre-stress

• Cool-down to 4K

• Rigidity of the structure at

operating conditions


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SpaceClaim Direct Modeler

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Parametric

Design


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Preparation

for simulation


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Drawings

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Rendering

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Rendering

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19 Magnetostatic

Analysis 3D Maxwell Solver

Enclosure

(1 multi-

body part

for the

whole

structure)

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20 Magnetostatic


Non-Linear

Material

Properties

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21 Magnetostatic


Excitation

(Current)

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22 Magnetostatic


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Results:

Contour Plot


23 Magnetostatic


Results:

Vector Plot

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Structural Analysis

Geometry

import with

multi-body

Parts

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Structural Analysis

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Mesh


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Structural Analysis

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Mesh

Operations


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Structural Analysis

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Final mesh

with

dropped

mid-side

nodes


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Structural Analysis

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Mesh

Diagnostics


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Structural Analysis

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Multi-step

analysis


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Structural Analysis

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Linear

&

Non-linear

contacts


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Structural Analysis

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Linear

&

Non-linear

contacts


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Structural Analysis

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Results

Loadstep 1:

Welding &

Pre-stress


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Structural Analysis

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Results

Loadstep 1

Convergence


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Structural Analysis

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Results

Loadstep 2

Cool-Down @4K


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Structural Analysis

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Results

Loadstep 3

Operating


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Structural Analysis

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Results

Loadstep 3

Operating


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Structural Analysis

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Results

Loadstep 3

Operating


38 Design space -

Optimization

Yoke ± 3,8 μm

Collar ± 6,3 μm

Angle of loading plate ± 0,2°

Coil (outside diameter) ± 75 μm

Coil (azimuthal length) ± 50 μm

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• The sensitivity analysis is conducted by utilizing the

DOE method (Design of Experiments) which

determines sampling points on a response surface

• About 8 input parameters have to be checked

• About 100 variations of the model have to be run


39 Design space -

Optimization

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Coil’s azimuthal length: Δl = 0.1 mm Δσmax ≈ 25 MPa

Coil’s outer diameter: Δd = 0.075 mm Δσmax ≈ 15 MPa The dimensional tolerances on the coil size play the

most important role on the maximum coil stress level


40 Design space -

Optimization

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• The dimensional tolerances on the coil size play the most important role on the maximum coil stress level

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Excellence through Engineering Simulation

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Exploring the capabilities of ANSYS AIM on a superconducting accelerator magnet model

Engineering

Transcript of Exploring the capabilities of ANSYS AIM on a superconducting accelerator magnet model