Project Details
Projekt
Development methodology for laser powder bed fused lightweight structures with integrated particle dampers for vibration reduction
Subject Area
Engineering Design, Machine Elements, Product Development
Mechanics
Mechanics
Term
since 2022
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 495193504
The objective of the proposed research project is the holistic physical evaluation of additively manufactured particle dampers so that, based on this, a development environment with integrated multi-objective optimisation for the design of structural components with regard to stiffness, mass and damping can be developed. By means of additive manufacturing, in particular laser powder bed fusion, unfused powder can be integrated into dynamically loaded structural components and thus an inherent damping of more than a factor of 20 can be realised. To evaluate the particle damping, a Design of Experiment (DoE) will first be carried out. Based on these investigations, a mechanical substitute model for particle damping will be derived with the aim of providing a substitute damping for the finite element analysis (FEM). In parallel, a multi-objective optimiser will be set up to design structural components in terms of stiffness, mass and damping. Since optimisation results often have to be reconstructed in a time-consuming manner, a semi-automated programme sequence for reconstruction into a workable CAD model is to be developed. Based on the previous results, a semi-automated development environment is planned in order to reduce interface problems and to run through the development process of particle-damped components faster and more efficiently. Finally, the development environment will be used to design various demonstrators such as a motorcycle triple clamp or turbine blades.
DFG Programme
Research Grants
Co-Investigators
Dr.-Ing. Tobias Ehlers; Dr.-Ing. Paul Christoph Gembarski; Dr.-Ing. Sebastian Tatzko
