首页> 外文会议>ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference 2007 >STABILITY AND STATIONARY RESPONSE OF A SKEW JEFFCOTT ROTOR WITH GEOMETRIC UNCERTAINTY
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STABILITY AND STATIONARY RESPONSE OF A SKEW JEFFCOTT ROTOR WITH GEOMETRIC UNCERTAINTY

机译:具有几何不确定性的斜交式捷夫科特转子的稳定性和稳态响应

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The dynamical behavior of an asymmetrical Jeffcott rotor subjected to a base translational motion is investigated. As the geometry of the skew disk is not well defined, we introduce some randomness. This uncertainty affects a particular parameter in the time-variant motion equations. Consequently, the amplitude of the parametric excitation is a random parameter which leads us to investigate the robustness of the dynamics. The stability is first studied by introducing a transformation of coordinates (feasible in this case) making the problem simpler. Then, far away from the unstable area, the random forced steady state response is computed from the original motion equations. The Taguchi's method is used to provide statistical moments of the forced response.
机译:研究了不对称Jeffcott转子在基础平移运动下的动力学行为。由于斜盘的几何形状定义不明确,因此我们引入了一些随机性。这种不确定性会影响时变运动方程中的特定参数。因此,参量激励的幅度是一个随机参数,这使我们研究了动力学的鲁棒性。首先通过引入坐标变换(在这种情况下可行)来研究稳定性,从而简化问题。然后,在远离不稳定区域的地方,根据原始运动方程计算出随机强迫稳态响应。 Taguchi的方法用于提供强制响应的统计矩。

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