Optimization of a Motorbike Composite Swing-Arm
A feasibility study aiming at replacing the single-sided swing-arm for high performance MV Agusta F4 1000R and “Brutale” 990R/1090RR motorcycles made in aluminium alloy with a Resin Transfer Moulding (RTM) composite. A multi-objective approach was used, searching for solutions that minimized weight but maximized the torsional stiffness. The optimization process involved sixty design variables, which described composite laminate evolution in the swing-arm, together with eighteen constraint functions, including ramp-rate manufacturing constraint over the whole structure.
Optimization of a Radial Turbine Nozzle
Multi-objective Genetic Algorithms have been used together with Adaptive Response Surfaces to optimize the fluid dynamic performances of an Organic Rankine Cycle (ORC) Radial Turbine Nozzle. Nexus has been coupled with a state-of-the-art CFD solver in order to assist the design of the ORC turbines. …
Transonic Wing Optimization and Mesh Morphing
Advanced Mesh Morphing techniques in Shaper™, utilized with advanced optimization algorithms available in Nexus allows the optimization of the aerodynamic efficiency of a transonic wing in trimmed cruise configuration. The final twist distribution of the main wing identified after 45 iterations guarantees a drag reduction of about 1% for the whole aircraft. Employing Shaper™ and its advanced morphing capabilities, it is possible to explore a very large number of designs in a completely automated way allowing significant savings both in cost and time.
Optimization of Tractor Front Axle Support
iChrome’s software solutions, Nexus and Shaper, have been used by Same Deutz-Fahr, a leading tractor manufacturer, to achieve weight reductions and an overall performance increase of complex 3D assemblies such as Front Axle Supports. An overall weight saving of 15% compared to the previously design has been globally achieved. …
High-fidelity Optimization of a Transport Aircraft Wing
The work illustrates an aero-structural design optimization of a transonic business-jet wing. For this purpose, Euler 3D CFD with refined mesh and a beam-based finite element model for the wing structure have been used. An innovative approach of this work consists in dividing the cruise into a certain number of steps; over each step the attitude is considered to be constant, so that the Breguet range formula can be applied. The total range is then evaluated as the sum of the ranges of each step, leading to a sort of multi-objective optimization. Nexus has been used to guide the aerodynamic solver (SU2) and the structural one (Nastran) in the search for the optimal solution.