Tag Archives: RBF Morph

RBF Morph showcases virtual prototyping and shape optimization at “Engineering Playground”

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Flow streamlines in 3D printed model illustrate pressure reduction achieved through mesh morphing and adjoint CFD sensitivity studies. Source: RBF Morph

RBF Morph is participating in an “Engineering Playground” at Spazio Eventi Tirso, Rome, March 21-April 25, hosted by The Art of the Brick, a global touring exhibition of LEGO® sculptures by New York artist Nathan Sawaya. Says RBF Morph owner Marco E. Biancolini, “Together with my colleague Pier Paolo Valentini and with the support of our industrial partners HSL, Pipistrel and CRG, we have prepared six interesting pieces that demonstrate that engineering can be as exciting and fun as playing with LEGO bricks!”

RBF Morph explains that Engineering Playground “aims to present a new and visionary approach toward engineering. It is addressed to young and less young people who dream about how to become an engineer,” and shows how “the modern tools of Industry 4.0, such as virtual prototyping and 3D printing, are now so close to building parts with LEGO bricks [as] to make engineering an exciting and challenging game.” Continue reading

Optimization at ANSYS Automotive Simulation World Congress

automotive-simulation-world-congressOptimization was a theme running throughout the 2015 Automotive Simulation World Congress organized by ANSYS last week in Detroit. We attended sessions on topology, structural, aerodynamic, adjoint, multi-objective and multidisciplinary optimization that ranged across all the conference tracks—Powertrain, Body & Interior, Chassis, Electrification & Electronics. Continue reading

RBF-based aerodynamic optimization of an industrial glider

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Figure 1: Taurus glider

Executive summary—Improving the aerodynamic design of an industrial glider flying at Mach 0.08 was the goal of this project: RBF-based aerodynamic optimization of an industrial glider,” Emiliano Costa, D’Appolonia SpA, Rome, Italy; Marco E. Biancolini, Corrado Groth, University of Rome Tor Vergata, Rome, Italy; Ubaldo Cella, Design Methods (www.designmethods.aero), Messina, Italy; Gregor Veble, Matej Andrejasic, Pipistrel d.o.o., Ajdovščina, Slovenia.

The original design exhibited performance-degrading separation in the wing-fuselage junction region at high incidence angles. Using a numerical optimization approach designed to be affordable even with limited HPC resources, the separation was significantly reduced by updating the local geometry of fuselage and fairing while maintaining the wing airfoil unchanged. Shape variations were applied to the glider’s baseline configuration through a mesh morphing technique founded on the mathematical framework of radial basis functions (RBFs). Computational outputs were obtained using a combination of ANSYS DesignXplorer, ANSYS Fluent and RBF Morph software working in the ANSYS Workbench environment. Continue reading

Design exploration vs. design optimization

Automating the search for solutions to engineering problems can take either of two broad approaches: design exploration or design optimization. Practitioners making technology choices need to understand which tools do one, which do the other, and which approach best fits their needs. A global roster of commercially available design exploration and optimization software appears at the end of this post. Continue reading