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| 直升机动部件的疲劳损伤与可靠性分析 | |
| 引用本文： | 柳文林,穆志韬,周凯,段成美.直升机动部件的疲劳损伤与可靠性分析[J].海军航空工程学院学报,2005,20(6):620-622. |
| 作者姓名： | 柳文林 穆志韬 周凯 段成美 |
| 作者单位： | 1. 海军航空工程学院飞行器工程系,山东,烟台,264001;海军航空士程学院研究生管理大队,山东,烟台,264001 2. 海军航空工程学院青岛分院,山东,青岛,266041 3. 海军航空士程学院研究生管理大队,山东,烟台,264001 |
| 摘 要： | 针对直升机动部件的载荷特点和疲劳损伤型式,在确定某型直升机旋翼检查周期时, 以Weihull型S-N曲线公式为基础,结合Miner线性累积损伤法则计算安全使用寿命,依据概率断裂力学理论建立具有角裂纹型初始缺陷结构的损伤容限分析模型,由此可获得保证一定可靠度的使用寿命和检查周期,对此型直升机旋翼动部件寿命评定与监控有重要的工程应用价值。 |
| 关 键 词： | 直升机 动部件 疲劳损伤 损伤容限 检查周期 |
| 修稿时间： | 2005年5月20日 |
Reliability Analysis and Fatigue Damage Of Helicopter Dynamic Components |
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| LIU Wen-lin,MU Zhi-tao,ZHOU Kai,DUAN Cheng-mei.Reliability Analysis and Fatigue Damage Of Helicopter Dynamic Components[J].Journal of Naval Aeronautical Engineering Institute,2005,20(6):620-622. | |
| Authors: | LIU Wen-lin MU Zhi-tao ZHOU Kai DUAN Cheng-mei |
| Abstract: | According to load feature and fatigue damage form of helicopter dynamic component, a hybrid approach based on a mixture of the traditional safe-life and damage tolerance techniques can be used as an optimal strategy for ensuring helicopter structural integrity, the life of a helicopter main rotor blades has been obtained by Weibull S-N curves based on Miner linear cumulative damage rule. According to probabilistic fracture mechanics theory, the analytical model of structures with initial corner cracks has been established. Thus the service life and inspection intervals according to the request of reliability can be determined, which is very valuable in engineering for life prediction and monitoring of helicopter dynamic components. |
| Keywords: | helicopter: dynamic component fatigue damage damage tolerance inspection intervals |
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