Bracket Dataset
by Narnia Labs

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Research Paper
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Purpose

This open dataset, meticulously crafted through the synergy of 3D deep learning technology and Finite Element Analysis (FEA) simulations, serves as a robust foundation for various advanced engineering applications. It is particularly suited for 3D data processing and machine learning endeavors demanding substantial data volume.
Further, it holds significant potential as structured input data for complex tasks such as surrogate model construction that accounts for performance, performance prediction using deep learning algorithms, and the resolution of inverse problems. This strategic composition accentuates the dataset's multifaceted applicability and value within the specialized realm of mechanical engineering.

About the dataset

This dataset signifies a methodical integration of data augmentation and synthetic data creation, employing 3D deep learning technology with jet engine bracket data that adheres to a well-defined design interface. Stemming from the guidelines of the 'GE Jet Engine Bracket Challenge,' the learning data comprises CAD designs, which have been further enriched with high-quality reconstructed SimJEB data.
The bracket data encapsulates the outcomes for four distinct load scenarios, as examined through a comprehensive structural analysis, and is additionally supplemented with two natural frequency analysis result values. Through the application of unsupervised clustering technology specific to 3D data, the dataset has been systematically segmented into 20 clusters, each classified by shape similarity and containing 50 meticulously curated data entries.
These entries encompass a CAD file, volume mesh file, surface mesh file, analysis nodal result file, solver input file, and preview image file, thereby offering a multifaceted resource that resonates with the complex demands of contemporary mechanical engineering research and development.
Vertical Load Case
Static
8000 lbs up
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Horizontal Load Case
Static
8500 lbs up
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Diagonal Load Case
Static
42 degrees from Vertical
8000 lbs up
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Torsional Load Case
Static Torsional
Horizontal plane at centerline of clevis
5000 lb-in
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CAD
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Volume mesh
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Surface mesh
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Analysis nodal result
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Solver input

Download Dataset

Each bracket in the dataset consists of 5 different types of data including CAD file, volume mesh, surface mesh, analysis nodal result, and solver input file.
Brackets are divided into 20 groups according to their resemblance. You can find the 20 representative designs below.
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Group 1
Group 0
Group 10
Group 10
Group 1
Group 1
Group 11
Group 11
Group 2
Group 2
Group 12
Group 12
Group 3
Group 3
Group 13
Group 13
Group 4
Group 4
Group 14
Group 14
Group 5
Group 5
Group 15
Group 15
Group 6
Group 6
Group 16
Group 16
Group 7
Group 7
Group 17
Group 17
Group 8
Group 8
Group 18
Group 18
Group 9
Group 9
Group 19
Group 19

What differentiate Narnia Labs?

Data augmentation

Amplified 3D data by 10 times using deep learning
About 2,138 data provided filtered based on mesh quality and analysis results

Auto classification

Automatically classifies design classes with deep learning

High accuracy

Applied 2nd-order tetra element

Additional information

Signed von Mises Stress (after checking tendency of the tensile and compressive stresses)
Model body information (center of gravity, moment of inertia)
Natural frequency analysis with mode shape