A MIMO system for the replication of accelerations excited in a vehicle by single obstacle crossings at comfort-relevant excitation points in a comfort simulator
Publication date
2023-02-06
Document type
Forschungsartikel
Author
Reichel, Kevin
Organisational unit
Publisher
Extrica
Series or journal
Journal of Vibroengineering
ISSN
Periodical volume
25
Periodical issue
3
First page
548
Last page
566
Peer-reviewed
✅
Part of the university bibliography
✅
Language
English
Abstract
This paper presents the replication of accelerations in a vehicle excited from single obstacle crossings. The accelerations should be replicated at multiple comfort-relevant excitation points in a comfort-simulator. For the vertical accelerations at the seat rails and the foot rests, research on the positions and the number of shakers is conducted. The implementation of an electrodynamic shaker for each controlled measurement point turns out to be mandatory. By positioning them at the left and right seat rails, errors can be minimized due to similarities in the transmission behavior. The longitudinal excitations of the seat back by means of shakers are performed very precisely. The direct coupling by a construction on the headrest allows fast exchange of the vehicle seats. The combination of all acceleration replications simultaneously can be performed satisfactorily comparing them with in-vehicle field measurements. The noise-based excitation signal for system identification turns out to be a significant parameter.
Description
This is an open access article distributed under the Creative Commons Attribution License (CC BY 4.0) (https://creativecommons.org/licenses/by/4.0).
Version
Published version
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