Structural Connection Parameter Measurement for Precision Motion Systems Using Accelerometers: A Preliminary Study

Li Li, Zheng Yang, Jia Ziqing
Abstract:
Accurate modelling is important for both the performance control and monitoring of high-precision motion systems in advanced manufacturing machines. It is not difficult to build dynamic models for motion systems based on the multi-rigid-body system assumption. However, it is usually not feasible to acquire the real connection parameters between rigid bodies like stiffness and damping coefficients especially after mechanical assembly which can be significantly different from their designed values. In this paper, a measurement scheme using multiple accelerometers is presented with discussion of the data processing methods. Simulation results on a three-rigid-body motion system and experimental results on a two-mass motion system preliminarily verify the scheme. Finally, existing problems are put forward for further study.
Download:
IMEKO-TC6-2025-008.pdf
DOI:
10.21014/tc6-2025.008
Event details
IMEKO TC:
TC6
Event name:
TC6 M4Dconf2025
Title:

2025 IMEKO TC-6 International Conference on Metrology and Digital Transformation

Place:
Benevento, ITALY
Time:
03 September 2025 - 05 September 2025