【作者】 陈卫东； 张铁军；

【Author】 CHEN Wei-dong, ZHANG Tie-jun (DepL Of Aerospace Eng., Harbin Engineering University, Harbin 150001, China)

【机构】 哈尔滨工程大学航天工程系；

【摘要】 采用随机有限元法计算了由拉压杆元、三角形平面应力元和四边形平面应力元三种类型单元构成的薄壁结构的静强度问题,考虑了结构材料性能的随机性和载荷的随机性。应用该结构模型可以很好的模拟机翼结构的实际情况。为机翼结构的可靠性分析和损伤容限设计提供了比较有价值的力学分析手段。更多还原

【Abstract】 A stochastic finite element method was developed to calculate a static strength problem of a bar-plate structure consists of bar element, triangular plane stress element and quadrilateral plane stress element This method takes into account the random of capability of mechanics of materials and loading. With use of this structure model, we can simulate the real performance of aerofoil very well. A good mechanics analysis approach was presented for reliability analysis and damage tolerance design of aerofoil structure.更多还原