Geometric module library for conceptual product development: Reducing Complexity and Increase Product Understanding in order to enable Geometrical Design Space exploration during early concept development

Examensarbete för masterexamen
Mousavi, Mikael
The geometrical design space represents the set of all possible design alternatives for a product. Therefore, when creating new design alternatives for an existing product, a high design freedom within the design space is desired in order to explore as many solutions as possible. Unfortunately, current practices restrict developers to optimization work due to rigidity in the existing CAD models, uncertainties on the performance and time and resource constraints. The knowledge gathered during the exploration of the problem is used to identify requirements and create a framework for a Library System that solves the existing issues. The framework is presented through a User Perspective flowchart. The flowchart describes the required actions in both the preparation work (setting up the Library System structure and the CAD-model setup) as well as the activities during usage of the system. As a final part of the project a Proof-Of-Concept is created through a demonstration of the activities in the proposed Library System which are applied on a Case Product. The resulting Library System solution consists of flexible CAD-models that increases the Design Space Freedom and presents a structured storage for the developers. The presented Library System introduces an approach where complexity is reduced by using a controllable geometrical design space exploration through use of hybrid modelling techniques during the early concept development process. The created Library System allows the Users to increase the knowledge about the new novel design alternatives (through collecting data using virtual testing on the performance) and in parallel allowing the users to create new design alternatives based on the new knowledge. Finally, a comparison versus the current state of art and the proposed Library system implies that the potential impact of the created solution, if realized, can result in a higher productivity for developers as well as a platform that allows for reuse. As a conclusion the created work of this thesis can be seen as a baseline for solving an existing problem in the industry that has not yet been addressed. Further development, in order to realize the Library System is needed, but the initial feedback and results of the demonstration showcases great potential and therefore creating an incentive for continuing the research on this topic.
Design Space Exploration, Parametric Modelling, Synchronous Modelling, Direct Modelling CAD, , CAE, PLM, SBCE, Complexity Management, Early Concept Development
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