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振动环境下飞机薄壁结构紧固件疲劳寿命研究 被引量:9

STUDY ON FATIGUE LIFE OF THIN-WALL STRUCTURE FASTENERS OF AIRCRAFT
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摘要 列举了飞机薄壁结构紧固件损伤失效故障的典型实例,简要分析了其失效特点与危害性。针对某型飞机机翼前缘襟翼单面连接结构紧固件松动、脱落的故障问题,提出了3种改进方案,并采用拉-拉疲劳试验与振动疲劳试验方法对改进前后的紧固件进行了对比试验。为模拟紧固件在振动疲劳载荷作用下的失效模式与失效过程,研制出了冲击振动试验台;初步建立了飞机结构紧固件振动疲劳试验方法。结果表明,在振动疲劳载荷与传统疲劳载荷作用下飞机结构紧固件的失效模式、损伤机理及寿命分布规律有显著差别。依据试验结果,给出了某型飞机机翼前缘襟翼单面连接结构改进的首选和备选方案。 A typical example of the damage failure of the thin-wall structure fasteners on aircraft was enumerated. The failure characteristics and its harmfulness of the thin-wall structure fasteners on aircraft were analyzed briefly. According to the fasteners loose and fall off failure problem of one sided connection structure of the leading edge of the wing on a certain aircraft, three improved design methods were put forward. And these fasteners with and without improved were experimental comparison verifyed by the tension-tension fatigue and the vibration endurance test methods. The impact vibrationn test device was developed to simulation or representation the failure mode and failure course of fasteners during vibration fatigue loading. A vibration fatigue test method on the thin-wall structure fasteners on aircraft was initially established. The results showed that there is essential difference on failure mode, damage mechanism, wreck destroy break appearance and pattern distributions of fatigue life ~ff the thin-wall structure fasteners between the classical fatigue loading and the vibration fatigue loading. Based on the test results, the preferred and alternative improved design methods on the fasteners of one sided connection structure of the leading edge of the wing on a certain aircraft were provided.
出处 《机械强度》 CAS CSCD 北大核心 2015年第1期52-57,共6页 Journal of Mechanical Strength
关键词 飞机 薄壁结构 紧固件 失效模式 振动疲劳试验 疲劳寿命 Aircraft Thin-wall structure Fastener Failure mode Vibration fatigue test Fatigue life
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参考文献9

  • 1Fastener,Blind,Internally Threaded,External Sleeve Self-locking,NAS1675,National Aerospace Standard[S].Aerospace Industries Association of America,2011:4-12. 被引量:1
  • 2Zadoks R I,Yu X.An investigation of the self-loosening behavior of bolted under transverse vibration[J].Journal of Sound and Vibration,1997,208:189-209. 被引量:1
  • 3Chang J.Study on the self-looseing of bolted jiont[D].University of nevada,reno,2000,3-35. 被引量:1
  • 4姚敏茹.螺纹联接防松技术的研究应用与发展[J].新技术新工艺,2006(6):26-28. 被引量:31
  • 5陈晓东.双螺母防松振动性能分析与研究[J].价值工程,2011,30(24):37-37. 被引量:5
  • 6Dinger G,Friedrich C.Avoiding self-loosening failure of bolted joints with numerical assessment of local contact sate[J].Engineering failure analysis.2001,18:2188-2200. 被引量:1
  • 7Junker G H.New criteria for self-loosening of fastener under vibration[J].SAE,Transactions,1969,78:314-355. 被引量:1
  • 8Yang X,Nassar S A.Vibration-induced loosening performance of preloaded threaded fasteners[C].ASME,PVP,2010-25811. 被引量:1
  • 9高镇同.疲劳应用统计学[M].北京:国防工业出版社,1986.. 被引量:144

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