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KUNZ, J. BENEŠ, P.
Original Title
Mechanical Shock Shape Calculation from Estimated Accelerometer Parameters
Type
conference paper
Language
English
Original Abstract
Mechanical shocks are often measured by piezoelectric accelerometers. This sensor type causes shock shape changes because it is essentially an under-damped second order dynamic system, therefore it filters sharp edges of shocks and adds damped oscillations. Because of a signal change occurring on a sensor, it is hard to calculate correctly a shock parameters or a shock response spectrum. Yet both are essential parameters for device testing. Extracting a shock shape from measured data is very complicated due to a signal noise and inaccuracies in sensor dynamic parameters. In this paper, we present a new method of calculation of an original shock shape and of a sensor dynamic parameters when a mechanical shock is measured by two accelerometers with different frequency spectrum. New method was tested on simulated data and verified during experiment which provided overall accuracy up to 5 %.
Keywords
mechanical shock, piezoelectric accelerometer, shock response spectrum, parameter estimation
Authors
KUNZ, J.; BENEŠ, P.
Released
27. 7. 2017
Location
London
ISBN
978-1-906913-27-4
Book
Proceedings of the 24th International Congress on Sound and Vibration
2329-3675
Periodical
International Journal of Acoustic and Vibration
State
United States of America
Pages from
1
Pages to
6
Pages count
BibTex
@inproceedings{BUT138057, author="Jan {Kunz} and Petr {Beneš}", title="Mechanical Shock Shape Calculation from Estimated Accelerometer Parameters", booktitle="Proceedings of the 24th International Congress on Sound and Vibration", year="2017", journal="International Journal of Acoustic and Vibration", pages="1--6", address="London", isbn="978-1-906913-27-4", issn="2329-3675" }