Towards Dynamically Determined Design Principles

The Netherlands is world-famous for the “statically determined design principles”, which form the basis of high-precision mechatronics. During the design of these systems, the focus is still on increasing the first eigenfrequency as much as possible (light and stiff design). However, this approach is nearing its limits. The main focus of this research is to derive and demonstrate the use of so-called “dynamically determined design principles”, in analogy to the well-established “statically determined design principles”. The aim is to actually use the dynamics (such as the mode shapes) of the construction to achieve better performance, e.g. in terms of a larger control bandwidth or smaller sensitivity to vibrations.

PhD Candidate:  ir. Arjo Bos
Promotor: M. Steinbuch (TU/e)
Supervisors: P.C.J.N. Rosielle (TU/e), G. Witvoet (TNO)
Project Financing:  TNO
Project Period: April 2013 – March 2017

To this end, the PhD project aims to understand the dynamics of various constructions, and investigate ways to improve these dynamics. From this research generic, dynamics oriented design principles should be extracted and validated. Ultimately, such “dynamically determined design principles” should be demonstrated in one or more demonstrator setups exemplifying superior performance. To achieve this goal, the focus lies on various research carriers to gain appropriate knowledge and exploit new design principles.

Topics of interest are, among others:

  • Actuation and suspension in nodes
  • Mode shape optimisation
  • Collocated vs. non-collocated setups
  • Over-constrained flexible systems