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首页> 外文期刊>Mechanism and Machine Theory: Dynamics of Machine Systems Gears and Power Trandmissions Robots and Manipulator Systems Computer-Aided Design Methods >Sommerfeld effect characterization in rotors with non-ideal drive from ideal drive response and power balance
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Sommerfeld effect characterization in rotors with non-ideal drive from ideal drive response and power balance

机译：具有理想驱动响应和功率平衡的非理想驱动转子的Sommerfeld效应表征

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摘要

Rotor dynamic systems are often analyzed with ideal drive assumption. However, all drives are essentially non-ideal, i.e., they can only provide a limited amount of power. One basic fact often ignored in rotor dynamics studies is that the drive dynamics has complex coupling with the dynamics of the driven system. Increase in drive power input near resonance may contribute to increasing the transverse vibrations rather than increasing the rotor spin, which is referred to as the Sommerfeld effect. In this article, we generate the rotor response with finite element (FE) model by assuming an ideal drive. Thereafter, the rotor system's response with ideal drive is used in a power balance equation to theoretically predict the amplitude and speed characteristics of the same rotor system when it is driven through a non-ideal drive. The integrated system with drive-rotor interaction ismodeled in bond graph (BG) form and the transient analysis from the BG model is used to validate the theoretical results. The results are important from the point of actuator sizing for rotor dynamic systems. (C) 2015 Elsevier Ltd. All rights reserved.
机译：通常以理想的驱动假设来分析转子动态系统。但是，所有驱动器本质上都是非理想的，即它们只能提供有限的功率。在转子动力学研究中经常被忽略的一个基本事实是，驱动动力学与被驱动系统的动力学具有复杂的耦合。在共振附近输入驱动功率会增加横向振动，而不是增加转子旋转，这被称为索默费尔德效应。在本文中，我们通过假设理想驱动来生成带有有限元（FE）模型的转子响应。此后，转子系统在理想驱动下的响应被用于功率平衡方程中，以在理论上预测同一转子系统通过非理想驱动方式驱动时的振幅和速度特性。具有键-转子相互作用的集成系统以键合图（BG）形式建模，并使用BG模型的瞬态分析来验证理论结果。从转子动态系统的执行器选型角度来看，结果非常重要。 （C）2015 Elsevier Ltd.保留所有权利。

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