Dynamic strength reliability analysis of an aircraft fuel pipe system

摘要

Based on the first-passage failure and the accumulative fatigue damage rule, the dynamic strength reliability and parameter sensitivity of an aircraft fuel pipe system under a random load is discussed in this paper. To calculate the structural dynamic strength reliability, a method which combined the random vibration spectrum analysis, dynamic strength reliability theory and the sensitivity analysis method is proposed. Using the proposed method, the dynamic strength reliability and parameter sensitivity for an aircraft fuel pipe system is carried out. Results show that the proposed method is convenient and effective for the evaluation of the dynamic strength reliability of engineering structures.