Area Ruling Hello World

This page is for AI assistant context only. To use this package, visit community.ntop.com.

Summary

Demo showing how to set up an area ruling optimization. Optimizes 8 parameters so the actual area ruling curve matches a Sears-Haack target curve, quantified using RMSE.

Package Details

Field	Value
ID	`area-ruling-hello-world`
Type	Notebook
Author	nTop
Version	1.0.0
nTop Version	5.44+
Domain	Aerospace
Complexity	Intermediate
Tags	`area-ruling`, `optimization`, `aerospace`, `rmse`, `sears-haack`, `parametric`
License	MIT
Verified	Yes

Area ruling demo. Goal: Optimize the 8 parameters so the red curve (actual area ruling) matches the target curve (green curve). Difference is quantified with the RMSE between the values. Other quantifications could be used instead if they work better. Sears-Haack Body Antonsen, June 2025

Installation

Clone this repo or copy the package folder into your nTop workspace:

git clone https://github.com/nTopology/Utilities.git

The package lives at packages/ntop/area-ruling-hello-world/.

Inputs

All parameters are dimensionless geometric scalars in the range 0–1.

Name	Type	Description
`Height Param 1`	Scalar	Controls the height of the area ruling profile at the first control point. Range: 0–1.
`Height Param 2`	Scalar	Controls the height of the area ruling profile at the second control point. Range: 0–1.
`Height Param 3`	Scalar	Controls the height of the area ruling profile at the third control point. Range: 0–1.
`Height Param 4`	Scalar	Controls the height of the area ruling profile at the fourth control point. Range: 0–1.
`Width Param 1`	Scalar	Controls the width of the area ruling profile at the first control point. Range: 0–1.
`Width Param 2`	Scalar	Controls the width of the area ruling profile at the second control point. Range: 0–1.
`Width Param 3`	Scalar	Controls the width of the area ruling profile at the third control point. Range: 0–1.
`Width Param 4`	Scalar	Controls the width of the area ruling profile at the fourth control point. Range: 0–1.

Outputs

Name	Type	Description
`RMSE`	Scalar	Root Mean Square Error between the actual area ruling curve and the target Sears-Haack curve. Lower values indicate a closer match.

License

MIT.

Source

https://community.ntop.com/packages/ntop/area-ruling-hello-world

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Area Ruling Hello World

Summary

Package Details

Installation

Inputs

Outputs

License

Source

​Summary

​Package Details

​Installation

​Inputs

​Outputs

​License

​Source

Summary

Package Details

Installation

Inputs

Outputs

License

Source