1 / 18

MAST – Multi Agent System for Structural Design

January 2009. MAST – Multi Agent System for Structural Design. Cherif Branki - UWS. Introduction Structural Optimisation Multi-Agent Systems Case Study Conclusion Future Work. Content. Agent Technology + Structural Design Optimisation = fun. Introduction. Best “possible” design

renate
Télécharger la présentation

MAST – Multi Agent System for Structural Design

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. January 2009 MAST – Multi Agent System for Structural Design Cherif Branki - UWS

  2. Introduction • Structural Optimisation • Multi-Agent Systems • Case Study • Conclusion • Future Work Content

  3. Agent Technology • + • Structural Design Optimisation • = • fun Introduction

  4. Best “possible” design • Given criteria and constraints • Transferral in mathematical domain • Powerful search strategy • Area of project collaborators Optimisation and Design

  5. Search for optimum properties of structural components • Geometrical Optimisation • Topological Optimisation Structural Optimisation

  6. Deformable Body • Volume V • Surface S • Traction t at St • Su Fixed • Sf Free Structural Design

  7. Two alternatives • Shape • Given material, best surface configuration • Topology • Single: Material variable density • Multiple: Cavities in V • Discrete: structural elements Structure of problem

  8. Topology • Set of components (Vocabulary) • Connections (Grammar) • Geometry • Coordinates • Components • Attributes Three Level Optimum Design

  9. Multi-Agent System • Graph transformations • Structural Optimum Design • Evolutionary Computing Technologies

  10. Graph-based description of the structure • Agents optimising each level • Agent collaboration strategy • Testing the prototype software • Prepare final release of the MAST • Published in journals • Mobile Adaptation Status so far

  11. Most abstract to least • Topology to Geometry to Components • Influence in both directions • Expensive to solve • Ignore dependencies • Solve sequentially Mutual coupling Agent Agent

  12. Composite Knowledge Representation • Composition graph for structure • Solutions generated by Graph Grammar • Layout of Structure • Hierarchical composition graphs Graph-based representation

  13. Example Transmission Tower

  14. Influenced by internal hCP structure • Monolithic prototype software • No connection between the three levels • Easily extendable for future additions • bottom‑up approach Agent Architecture

  15. Agent server • Factory registration • Clients connection • Multiple factories and multiple clients Design

  16. Factory Architecture

  17. SD and MAS work well • Promising approach • Implementation done • Mobile implementation • Performance optimisation Conclusion

  18. Questions? Thank You

More Related