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首页> 外文期刊>International Journal of Mechanical Sciences >Mode localization in a rotating mistuned turbo disk with Coriolis effect
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Mode localization in a rotating mistuned turbo disk with Coriolis effect

机译：具有科里奥利效应的旋转雾化涡轮盘中的模式定位

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An investigation of the speed effect, i.e., the effects of centrifugal and Coriolis forces, on the mode localization of a mistuned blade-disk is presented in this paper. A disk comprising of periodically shrouded blades is used to simulate the weakly coupled periodic structure. Galerkin method is employed to derive the mode localization equations of the mistuned system with the consideration of Coriolis force. The blades are approximated as cantilever beams, and five axial and lateral modes of each blade are used to present the dynamic behavior of the system. Ten modal coordinates have been considered for each blade. The effects of Coriolis force and the magnitude of disorder on the localization phenomenon of a rotating blade-disk system were investigated numerically. Numerical results obtained herein indicate that the Coriolis force may enhance the localization phenomenon.
机译：本文研究了速度影响，即离心力和科里奥利力对雾化叶片盘模式定位的影响。由周期性覆盖叶片组成的磁盘用于模拟弱耦合周期性结构。在考虑科里奥利力的情况下，采用伽勒金方法推导了失谐系统的模态定位方程。叶片近似为悬臂梁，每个叶片的五个轴向和横向模式用于表示系统的动态行为。每个刀片已考虑了十个模态坐标。数值研究了科里奥利力和无序度对旋转叶片-盘系统定位现象的影响。本文获得的数值结果表明，科里奥利力可增强定位现象。

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