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Accession Number:
AD0271151
Title:
THE VARIANCE ON PALMGREN-MINER DAMAGE DUE TO RANDOM VIBRATION
Corporate Author:
MASSACHUSETTS INST OF TECH CAMBRIDGE
Report Date:
1962-01-01
Abstract:
A random stress-history which is proportional to the stationary response of a single-degree-offreedom vibratory system to wide-band Gaussian excitation is assigned a damage based on the Palmgren-Miner hypothesis and an idealized S-N law. The damage accumulated in time T is a random variable because of the randomness in the number of cycles and the randomness in the amplitudes of the cycles. The mean and variance of the damage are obtained by two procedures one which accounts for both sources of randomness and one which neglects the randomness in the number of cycles contained in the interval. The two procedures give the same asymptotic result when the bandwidth shrinks to zero. Author
Pages:
0028
Distribution Statement:
Approved for public release; distribution unlimited
Contract Number:
AF 49(638)-564
File Size:
0.74MB
