基于模态数据的旋转裂纹叶片可靠性分析

2017 International Conference on Mechanical, System and Control Engineering (ICMSC) Pub Date : 2017-05-01 DOI:10.1109/ICMSC.2017.7959447

Sepehr Heidari, A. Zabihollah, M. Behzad

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引用次数: 1

摘要

本文研究了旋转机械的关键部件叶片裂纹的振动特性。然而，由于真实叶片的建模和分析是一个复杂的问题，因此我们对一个同时具有弦向(X-Y平面)和扑翼向(X-Z平面)运动的简化悬臂梁进行了建模。采用有限元法对带裂纹的梁进行建模，研究其固有频率。最后利用模态数据建立了极限函数，并对梁模型进行了可靠性分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Reliability analysis of rotating cracked blade using modal data

This paper deals with vibrational behaviors of blades with cracks which are key components in rotating machines. However, since modelling and analysis of real blade is a complex problem, a simplified cantilever beam with both chordwise (in X-Y plane) and flapwise (in X-Z plane) motion are modeled instead. Finite Element Method (FEM) is used to model beam and to investigate its natural frequencies with a crack. Finally a limit function using modal data is developed and reliability analysis of beam model is performed.

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2017 International Conference on Mechanical, System and Control Engineering (ICMSC)

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