Archive for 'Nexus'

Nexus v2.3.0 released

We are proud to announce the release of Nexus v2.3.0 – our latest version of the multi-disciplinary and multi-objective design optimization solution. iChrome continues to innovate Nexus with the aim to help customers alleviate the ever growing pressures to get the design right the first time, create the best design and get the product to market before the competitors do.

What’s new:

  • Beta version release of direct integration nodes (1) for Abaqus, Nastran and Optistruct
  • Improved table ...
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Nexus v2.2.1 released

iChrome is proud to announce the release of Nexus v2.2.1 providing more advanced chart templates and result post processing tools, leading to an easier and more effective result interpretation.
Download the installer from the download area of our website or use the Software Updating tools in the main menu of Nexus.

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Size and Shape optimization of Composite Stiffened Panels via MLS free-mesh morphing

This work combines Moving Least Square mesh morphing methods with classical optimization techniques to optimize Composite Stiffened Structures against buckling constraints. The idea is to use standard optimization methods to handle thicknesses and percentages of the composite laminates and Moving Least Square morphing capabilities to modify the shape of the stringers without generating new meshes from geometry during the optimization process.

Methodology

The considered structural assembly is reported in the figure below. A flat panel with ...

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Optimization of an ORC Radial Turbine Nozzle

Organic Rankine Cycle (ORC) turbogenerators usually operate in thermodynamic regions characterized by high pressure ratios and strong real-gas effects in the flow expansion, requiring therefore a non-standard turbomachinery design. An effective approach can be based on the intensive use of Computational Fluid Dynamics (CFD) and optimization procedures to investigate a wide range of possible configurations.

Methodology

Expansions through impulse stages of ORC turbines are commonly characterized by large pressure ratios and a low speed of sound ...

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Optimization of Transonic Wing with Advanced 3D Mesh Morphing

Aerodynamic efficiency is a key aspect in commercial aircraft design as it allows reducing fuel consumption and meeting emission and performance requirements. The main goal of this work is to improve the initial shape of the wing of an innovative three lifting surfaces configuration aircraft in order to minimize drag at transonic cruise condition.

Methodology:

The classic approach to aerodynamic shape optimization requires the definition of a geometrical parameterization of the CAD model. In this case, ...

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Optimization of a Motorbike Composite Swing-Arm

The challenge is to perform 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 aluminum alloy with a Resin Transfer Molding (RTM) carbon composite one. Injection-based technologies for long fiber reinforcement, such as RTM, have been found particularly rewarding for motorsport cars and motorbikes.

Methodology:

After an initial re-assessment of shape and design of the part to make it more suitable to be ...

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