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中文摘要：
为了改善航空发动机整体性能和可靠性，以航空发动机从地面起动到巡航过程为研究对象，采用热-固耦合分析方法，对涡轮转子叶尖径向运行间隙（BTRRC，Blade-tip Radial Running Clearance）进行动态分析。在分析中考虑了材料属性的非线性和温度载荷、离心载荷的动态性，分别对涡轮的叶片、盘和机匣的变形进行计算和分析．得到了涡轮叶尖径向运行间隙的变化规律，以及BTRRC最小点（可选择t=180s）和最小值（约0．18mm），为进行进一步涡轮叶尖径向运行间隙的动态概率分析和动态优化设计奠定了基础。
英文摘要：
In order to improve aeroengine performance and reliability, HPT Blade-tipRadial Running Clearance （BTRRC） was dynamically analyzed from starting to cruise by thermal-mechanical coupling method. The variation rules of BTRRC and its minimum were obtained by calculating and analyzing the radial deformations of turbine blade, disk and casing under considering the material nonlinear and the dynamic of centrifugal loads and thermal loads. It is provide useful insight for BTRRC dynamic probabilistic analysis and dynamic optimization design.
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Nonlinear dynamic probabilistic design of turbine disk-radial deformation using extremum response su
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