Create parametric 3D fusion reactor CAD models

Paramak

J. Shimwell, J. Billingsley, R Delaporte-Mathurin, D. Morbey, M. Bluteau, P. Shriwise, A. Davis

This work was funded by the RCUK Energy Programme
[Grant number EP/P012450/1]

Motivation

Diagram / sketch / idea

Manual CAD model creation via GUI

CAD model geometry created

CAD model cleaned

Analysis

Decompose existing models

Method

Shapes

Components

Reactors

Base parametric Shapes()

Shapes require the user to provide points / coordinates to make a 3D geometry.

A rotate, extrude or sweep operation is applied to the points

Boolean operations such as cut, union, intersection are supported

Repeating patterns around an axis are supported

Components from Shapes

import paramak

height = 700
blanket_rear = 400
blanket_front = 300
blanket_mid_point = 350

blanket = paramak.RotateMixedShape(
  rotation_angle=180,
  points=[
    (blanket_rear, height / 2.0, "straight"),
    (blanket_rear, -height / 2.0, "straight"),
    (blanket_front, -height / 2.0, "spline"),
    (blanket_mid_point, 0, "spline"),
    (blanket_front, height / 2.0, "straight"),
  ]
)

blanket.export_stp('"blanket.stp")

import paramak


blanket = paramak.RotateMixedShape(
  rotation_angle=180,
  points=[
    (538, 305, "straight"),
    (538, -305, "straight"),
    (322, -305, "spline"),
    (470, 0, "spline"),
    (322, 305, "straight"),
  ]
)

blanket.export_stp("blanket.stp")

CAD from points

CAD from parameters