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中文摘要：
为了合理设计和控制叶尖间隙,对涡轮盘径向变形进行非线性动态概率分析.考虑材料属性的非线性和载荷的动态性进行轮盘径向变形的确定性分析,得出轮盘变形随时间变化规律,找出了涡轮盘变形最大值.通过轮盘变形的概率分析得到：轮盘径向变形的分布特征、不同径向变形设计值δ下的失效数和可靠度、不同可靠度下的各随机参数的极限值,影响涡轮盘径向变形的随机参数的灵敏度.
英文摘要：
To reasonably design and control blade-tip clearance, the nonlinear and dynamic probabilistic analysis of disk radial deformation was studied based on finite element model （FEM） and response surface method （RSM）. Through deterministic analysis of disk deformation considering material nolinear and loads dynamic, the disk radial deformation change with time and the maximum value of disk deformation were gained. It was available to the distribution feature of disk deformation, the failure number and reliability de- grees under different radial deformation preset value 8, the limit values of random parameters under different reliabilities and the sensitivities of random parameters influencing the disk radial deformation.
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Nonlinear dynamic probabilistic design of turbine disk-radial deformation using extremum response su
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