【摘要】 以束腰式膜片为研究对象,利用Ansys有限元应用软件对膜片中存在的应力进行了计算,得到了膜片应力的结构变形图、节点应力分布图及最大应力点的数值和位置。根据计算结果依据疲劳裂纹形成寿命计算的局部应力一应变法,对膜片的疲劳寿命进行了计算。更多还原

【Abstract】 Taken the corset membrane as an example,Using ANSYS’s finite element programme stresses of the membrane are calculated,and the results are obtained such as deformation pattern for structure distribution graph for nodal stresses and maximum stress.According to the results and a new method which calculates fatigue life was used,named local stress-strain method.And using it the fatigue life of membrane are evaluated.更多还原