Overview
This project focuses on computational tools for the optimised design of functional free-form surfaces. Specific applications are ship hulls and propellers in naval engineering and car components, frames, and turbochargers in the automotive and railway transportation industries. The functionality of these products depends on the shape of the surfaces, and even small variations may have significant impact. Our vision is that all computational tools are based on the same exact representation of the geometry. This will lead to huge benefits for the entire chain of design, simulation, optimization, and life cycle management.
For several reasons, an exact representation of the geometry is essential. The errors introduced by approximating the geometry may falsify the simulation results in challenging applications. This becomes even more important if the simulation is to be used as part of an optimization loop for goal-based design. Multi-physics models, such as fluid-structure interfaces, demand for exact interfaces. There exists a 'great divide' between the CAD (Computer Aided Design) approaches for modeling complex geometries and the numerical simulation methods (FEM). The idea of bridging this gap has gained significant momentum by the introduction of isogeometric analysis (IA) by US-based researchers. The application and extension of IA to core components of vehicles and vessels is especially rewarding since with respect to functional free-form surfaces, the existing simulation and optimization methods are at the limit of their capabilities.
The strategic objectives are:
- To establish a new class of computational tools for fluid dynamics and solid mechanics, simulations for vehicles and vessels based on IA (isogeometric analysis);
- To achieve seamless integration of CAD (Computer Aided Design) and FEM (numerical simulation methods);
- To apply the tools to product design, simulation and optimization of core components of vehicles and vessels.
The project consists of several Work Packages (WPs). The focus of these Work Packages is as follows:
- WP1: Propellers and Turbochargers
- WP2: Ship hulls
- WP3: Car components and Frames
- WP4: Fluid-structure interaction
- WP5: Optimisation
- WP6: Isogeometry toolbox
Funding
Results
The project has delivered a new class of computational tools, applicable for product design, simulation and optimization of components in vehicles, vessels, etc.
An exact representation of geometrical shapes (e.g. a propeller, ship hull, etc) is essential as errors, introduced by approximating the geometry, may falsify simulation results. Even small variations (like simplifications of the true shape) may have a significant impact. This is disastrous in the case of challenging applications and/or an optimisation process. Therefore, an exact representation of geometrical surfaces is a prerequisite in analysis, simulation and optimisation.
Innovation aspects
Development of new computational tools for product design, simulation and optimisation of component in vessels, vehicles, etc.