Talks and Poster Presentations (with Proceedings-Entry):
S. Ito, F. Cigarini, S. Unger, G. Schitter:
"Flexure design for precision positioning using low-stiffness actuators";
Poster: 7th IFAC Symposium on Mechatronic Systems & 15th Mechatronics Forum International Conference,
Loughborough (Vereinigte Königreich);
- 09-08-2016; in: "Proceedings of the 7th IFAC Symposium on Mechatronic Systems",
This paper analytically investigates flexures to mechanically guide the moving part
of a precision positioning system actuated by Lorentz actuators, where the control bandwidth
is typically restricted by the second or higher mechanical resonances that can include internal
modes of the positioning mass. Based on analytical models, mechanical resonant frequencies
are derived for a given set of parameters to determine flexure dimensions and material. As
a result of the derivation and analysis, a model is proposed to predict this second resonant
frequency for a given first resonant frequency to achieve better control design and performance.
As the verification, the effectiveness of the proposed model is confirmed by using Finite Element
Analysis (FEA), as well as an experimental setup for frequency response.
Flexure, Lorentz actuator, voice coil motor, precision positioning
Created from the Publication Database of the Vienna University of Technology.