660 柔軟に結合された2つの回転体の非線形ノーマルモード(非線形連成振動, OS-10 非線形力学と力学系理論)

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  • 660 Nonlinear Normal Modes in Flexibly Coupled Two Rotors

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Rotating machineries are the most widely used elements in mechanical systems. Many systems such as power plant and jet engine are multi-span rotor system, which is supported by multiple bearings. In this research, we consider a 2-DOF nonlinear rotary system in which the two nonlinear rotors are coupled by means of a weakly linear stiffness. We show nonlinear normal modes in this system using the method of multiple scales. Furthermore, we indicate the occurrence of mode localization in this system.

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