Methods and calculation of mean time to failure based on Coriolis vibratory gyroscope test results

Authors

  • V. V. Chikovani Національний авіаційний університет, Київ, доктор технічних наук, професор кафедри систем управління літальними апаратами, Ukraine
  • S. P. Maliarov ВАТ НПК «Київський завод автоматики ім. Г.І. Петровського», Київ, кандидат технічних наук, Ukraine

DOI:

https://doi.org/10.33577/2312-4458.5.2011.119-124

Keywords:

reliability, gyroscope, failure rate

Abstract

This paper uses the method of calculating the reliability of Coriolis vibrating gyroscope, based on an analysis of effects of external stress factors on the device and calculation the accelerated degradation coefficients. Methodic to calculate mean time between failures with the use of accelerated degradation coefficients is presented. To calculate the coefficients of accelerated degradation the following models were used: Arrenius model for high temperature, Coffin-Manson model for thermocycle and Holberg-Peck model  for humidity. First, the failure rate and mean time between failures in operation of the gyro under normal conditions are computed and then, on the basis of these estimates, reliability parameters for the instrument in other environmental conditions are calculated with the use of environmental factors pE for specific operating conditions. As a result, the mean time between failures of Coriolis vibratory gyroscope with a metal resonator under normal operating conditions is 2,509,145 hours.

References

“Military Handbook for Reliability Prediction of Electronic Equipment”. – MIL-HDBK-217F Notice 2.

Scott Speaks “Reliability and MTBF Overview”. – Vicor Reliability Engineering.

“Reliability Prediction Procedure for Electronic Equipment”. – Telcordia Technical Reference TR-332.

Published

2011-12-26

How to Cite

Chikovani, V. V., & Maliarov, S. P. (2011). Methods and calculation of mean time to failure based on Coriolis vibratory gyroscope test results. Military Technical Collection, (5), 119–124. https://doi.org/10.33577/2312-4458.5.2011.119-124

Issue

Section

PRODUCTION OF MILITARY EQUIPMENT