Volume 30 Issue 01
Jan.  2004
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Bao Rui, Zhang Jianyu, Chen Bo, et al. Up and down method for DFR testing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(01): 47-50. (in Chinese)
Citation: Bao Rui, Zhang Jianyu, Chen Bo, et al. Up and down method for DFR testing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(01): 47-50. (in Chinese)

Up and down method for DFR testing

  • Received Date: 08 Jul 2003
  • Publish Date: 31 Jan 2004
  • The up and down method to determine the detail fatigue rating (DFR) with experimentation was presented, which provides a more efficient way for DFR testing. Via numerical simulation, the half-sample maximum likelihood estimation method was proved to be effective to gain the mean value of fatigue strength. But it must be modified when used to estimate the standard deviation. The confidence degree was ensured by the least amount of specimen. At last, the expression of DFR acquired by the up and down method was given.

     

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