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Impact Mechanics Parametric Studies With Applications to Dynamic Force Calibration

[+] Author Affiliations
Nicholas Vlajic, Ako Chijioke

National Institute of Standards and Technology, Gaithersburg, MD

Paper No. DETC2017-67893, pp. V006T10A006; 11 pages
doi:10.1115/DETC2017-67893
From:
  • ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
  • Cleveland, Ohio, USA, August 6–9, 2017
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5820-2

abstract

National Measurement Institutions have developed apparatuses that rely on impacting bodies to realize time-varying forces for dynamic calibration of force transducers. Within this manuscript, we present a reduced-order model to investigate the effects of structural and contact parameters on determining the frequency-dependent calibration function of the force transducer that is to be calibrated. The reduced-order model is validated with experimental measurements and is used to conduct parametric studies, wherein regions of single impact events and contact time are mapped out in parameter space. Although this study has been conducted with dynamic force calibrations in mind, the results presented here are of broader relevance to modal analysis and system identification.

Topics: Calibration

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