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- W2053029159 abstract "The dynamic characteristics of an engine blade are evaluated under pre-and-post ice impact conditions using the NASA in-house computer code BLASIM. The ice impacts the leading edge of the blade causing severe local damage. The local structural response of the blade due to the ice impact is predicted via a transient response analysis by modeling only a local patch around the impact region. After ice impact, the global geometry of the blade is updated using deformations of the local patch and a free vibration analysis is performed. The effects of ice impact location, size and ice velocity on the blade mode shapes and natural frequencies are investigated. The results indicate that basic nature of the mode shapes remains unchanged after impact and that the maximum variation in natural frequencies occurs for the twisting mode of the blade." @default.
- W2053029159 created "2016-06-24" @default.
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- W2053029159 date "1992-08-10" @default.
- W2053029159 modified "2023-09-27" @default.
- W2053029159 title "Dynamic analysis of a pre-and-post ice impacted blade" @default.
- W2053029159 cites W2084832901 @default.
- W2053029159 doi "https://doi.org/10.2514/6.1992-4273" @default.
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