SimJEB: Simulated Jet Engine Bracket Dataset

Recent advancements in geometric deep learning have enabled a new class of engineering surrogate models; however, few existing shape datasets are well-suited to evaluate them. This paper introduces the Simulated Jet Engine Bracket Dataset (SimJEB): a new, public collection of crowdsourced mechanical brackets and high-fidelity structural simulations designed specifically for surrogate modeling. SimJEB models are more complex, diverse, and realistic than the synthetically generated datasets commonly used in parametric surrogate model evaluation. In contrast to existing engineering shape collections, SimJEB's models are all designed for the same engineering function and thus have consistent structural loads and support conditions. The models in SimJEB were collected from the original submissions to the GrabCAD Jet Engine Bracket Challenge: an open engineering design competition with over 700 hand-designed CAD entries from 320 designers representing 56 countries. Each model has been cleaned, categorized, meshed, and simulated with finite element analysis according to the original competition specifications. The result is a collection of diverse, high-quality and application-focused designs for advancing geometric deep learning and engineering surrogate models.