Development of an Active Squeeze Film Journal Bearing Using High Power Ultrasonic Transducers
Development of an Active Squeeze Film Journal Bearing Using High Power Ultrasonic Transducers
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使用高功率超声波换能器开发主动挤压油膜轴颈轴承
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
S. Mojrzisch
中科院分区：
文献类型：
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作者：
Su Zhao;S. Mojrzisch
针对轴向旋转构件的非接触悬浮，提出了一种基于大功率压电传感器驱动的新型主动挤压油膜径向轴承，该轴承具有主动误差补偿和主动轴线定位功能。建立了基于声辐射压力理论的悬浮力数学模型。然后将悬浮力模型集成到机电系统模型中，以描述轴承系统的总体动态行为。利用原型系统进行了实验，实验结果与计算结果吻合良好。Copyright © 2009 by ASME
A novel active squeeze film journal bearing actuated by high power piezoelectric transducers is developed aiming for non-contact suspension of axial rotating member with active error compensation and active axis positioning. A mathematical model based on acoustic radiation pressure theory is developed to predict the levitation force of the proposed bearing system. The levitation force model is then integrated into the model of the electro-mechanical system to describe the total dynamic behavior of the bearing system. Experimental results are carried out using a prototype system, which show good agreement with the calculation.Copyright © 2009 by ASME