Statistical structural analysis of rotor impact ice sheddingThe statistical characteristics of impact ice shear strength are analyzed, with emphasis placed on the most probable shear strength and statistical distribution of an ice deposit. Several distribution types are considered: the Weibull, two-parameter Weibull, and exponential distributions, as well as the Gumbell distribution of the smallest extreme and the Gumbell distribution of the largest extreme. It is concluded that the Weibull distribution yields the best results; however, the expected life, shape parameter, and scale parameter should be determined separately for each case of varying wind speed and droplet size. The theoretical predictions of shear stresses in a specific rotating ice shape are compared, and it is noted that when the effects of lift are added to the theoretical model and the interference is calculated with a new mean and standard deviation, the probability of ice shed is computed as 36.64 pct.
Document ID
19910036958
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kellacky, C. J. (Akron Univ. Akron, OH, United States)
Chu, M. L. (Akron Univ. Akron, OH, United States)
Scavuzzo, R. J. (Akron, University OH, United States)