机械科学与技术
機械科學與技術
궤계과학여기술
MECHANICAL SCIENCE AND TECHNOLOGY
2001年
2期
231-233
,共3页
有限元法%疲劳寿命%连接加强件
有限元法%疲勞壽命%連接加彊件
유한원법%피로수명%련접가강건
针对飞机上一重要承力连接加强件,采用平 面四节点等参元与二维受剪钉元组合而成的有限元程序进行了细节应力分析,确定了疲劳危 险部位。接着,在给定的等效载荷谱作用下,采用应力严重系数法计算了其疲劳寿命,得到 了有益的结果。
針對飛機上一重要承力連接加彊件,採用平 麵四節點等參元與二維受剪釘元組閤而成的有限元程序進行瞭細節應力分析,確定瞭疲勞危 險部位。接著,在給定的等效載荷譜作用下,採用應力嚴重繫數法計算瞭其疲勞壽命,得到 瞭有益的結果。
침대비궤상일중요승력련접가강건,채용평 면사절점등삼원여이유수전정원조합이성적유한원정서진행료세절응력분석,학정료피로위 험부위。접착,재급정적등효재하보작용하,채용응력엄중계수법계산료기피로수명,득도 료유익적결과。
To analyze the fatigue behavior of joint-strengthened component in aircraft, a series of special finite element method (FEM) programs, in which 4-node isoparametric plane elements and two-dimensional rivet elements are used, are presented to analyze the detail stresses of the riveted component. After calculating the detail stresses of joint-strengthened component and determining its fatigue dangerous position, the stress severity factor method is used to calculate the fatigue life of the component and its fatigue safety life is gained.