Experimental characterization of rail‑to‑carriage dynamic stiffness in linear guides

THP23
18 Sept 2025, 16:20
1h 10m
Poster Session Room (The Loop)

Poster Session Room

The Loop

Poster Presentation Stability Issues Poster Session 3

Speaker

Gabor Felcsuti (MAX IV Laboratory)

Description

Linear guides are common components in precision motion systems, and their stiffness significantly influences the eigenfrequencies of structures used in synchrotron research. However, no generally accepted or validated guideline exists for including them in finite element models. This study employs an indirect method to experimentally determine their dynamic stiffness, avoiding the complications associated with direct measurement of high-rigidity components. Simple structures with well-known dynamic behavior are connected to a linear guide, and frequency response measurements are performed to determine frequency-dependent stiffness and damping factors. Further conclusions are drawn regarding the stiffness values provided in vendor catalogues, offering practical guidance for the design of synchrotron equipment.

Author

Gabor Felcsuti (MAX IV Laboratory)

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