螺桨断裂可靠性及损伤容限分析与评定

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1994, Vol. 15 ›› Issue (3): 318-323.

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THE RELIABILITY AND DAMAGE TOLERANCE ANALYSIS OF AIRCRAFT PROPELLER

Fei Binjun, Gao Zhengtong

Research Center of Solid Mechanics,Beijing University of Aeronautics and Astronautics,Beijing,100083

Received:1992-05-04 Revised:1993-03-05 Online:1994-03-25 Published:1994-03-25

Abstract

Abstract: The stress-strength interference model can be used for the structure without fatigue crack.It isn't available for the structure that is often damaged slightly such as propeller.A two-dimensional interference reliability model using the two-dimensional fatigue load distribu- tion and the distribution of fatigue crack growth threshold for the reliability of the structure with fatigue crack is established in this paper.The reliability of the propeller of Y7-200B with differ- ent crack sizes is listed.A damage tolerance analysis using aninterference integral formula with the two-dimensional load distribution is carried out for the propeller and the fatigue crack inspection period with given rcliability is given.

Key words: reliability, propellers, damage assessment

CLC Number:

Fei Binjun;Gao Zhengtong. THE RELIABILITY AND DAMAGE TOLERANCE ANALYSIS OF AIRCRAFT PROPELLER[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(3): 318-323.

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