Numerical Simulation of Waveform Adjustment in high G Accelerometer Calibration System Using Hopkinson Bar
- 10.2991/icmmita-15.2015.37How to use a DOI?
- Hopkinson bar; Acceleration; Stress wave; Waveform adjustment.
High-G accelerometer impact excitation using Hopkinson pressure bar was introduced. The impact excitation course was simulated on ANSYS/LS-DYNA using Lagrange's method and Johnson-Cook constitutive model. The effects of projectile nose shape, nose length, and adjustment pad material on acceleration waveforms were studied. The simulated results are in good agreement with the experimental results. The results show that projectiles with small nose taper or with large nose length will impact and produce acceleration waveform pulses with long rising time, low amplitude, and large pulse width. For adjustment pad material with small yield stress, the pulses of corresponding acceleration waveforms have long rise time, low amplitude, and large pulse width.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Xing-liang Zhao AU - Xin-liang Li AU - Peng Xu AU - Da-zhi Zhang PY - 2015/11 DA - 2015/11 TI - Numerical Simulation of Waveform Adjustment in high G Accelerometer Calibration System Using Hopkinson Bar BT - Proceedings of the 2015 3rd International Conference on Machinery, Materials and Information Technology Applications PB - Atlantis Press SP - 182 EP - 190 SN - 2352-538X UR - https://doi.org/10.2991/icmmita-15.2015.37 DO - 10.2991/icmmita-15.2015.37 ID - Zhao2015/11 ER -