NEWS 22 February 2024

Reducing vibrations in robotic systems

Input shaping can effectively reduce residual vibrations in flexible systems induced by the position trajectory.

But misunderstanding of the implementation aspects and its use has led to limited applications in mechatronic systems, where the shaped reference trajectory could result in a reduced overall movement time. The main contribution of this Mikroniek article is a design method based on the relationship of the relative overshoot with the ratio of vibration time and move time. This allows the determination of the highest acceleration value that keeps accuracy within the desired range. (Image courtesy of TU/e)


Picometer drift and microrad reproducibility

At the end of May, Settels Savenije hosted a DSPE Knowledge Day dedicated to challenges in nanometrology.

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Order of frictions and stiffnesses…

For lumped systems consisting of different frictions and stiffnesses, there has been confusion in literature about hysteresis curves and virtual play for many decades.

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