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首页> 外文期刊>Journal of manufacturing science and engineering: Transactions of the ASME >(021014)A Dynamic Modeling Approach for Spindle Bearing System Supported by Both Angular Contact Ball Bearing and Floating Displacement Bearing
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(021014)A Dynamic Modeling Approach for Spindle Bearing System Supported by Both Angular Contact Ball Bearing and Floating Displacement Bearing

机译：（021014）由角接触球轴承支撑的主轴轴承系统和浮动位移轴承的动态建模方法

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This paper presents a new dynamic modeling approach for spindle bearing system supported by both angular contact ball bearing (ACBB) and floating displacement bearing (FDB), First, a dynamic model of FDB is developed based on the discrete element method with each bearing component having six degrees-of-freedom (DOFs). Based on the developed FDB dynamic model and Gupta ACBB dynamic model, a fully coupled dynamic model of the spindle bearing system combined both ACBBs, and FDB is developed. In the proposed spindle bearing system model, the spindle shaft is modeled using finite element (FE) method based on the Timoshenko beam theory with the consideration of centrifugal force and gyroscopic moment. The coupling restriction between the dynamic bearing models and the FE spindle shaft model are the restoring forces and moments that are transmitted to the shaft by the bearings and the dynamic vibration response shared by both the bearing inner races and the corresponding nodes of the shaft where bearings are installed. A Fortran language-based program has been developed for the spindle bearing system with the dynamic bearing models solved using the Runge-Kutta-Fehlberg integration method and FE shaft model solved by Newmark-β method. Based on the developed model, the effect of the FDB radial clearance, system preload, and spindle rotating speed on the system dynamics, and the effect of the FDB radial clearance on the system unbalanced response have been investigated. D10.1115/14038687
机译：本文提出了一种新的动态建模方法，用于由角接触球轴承（ACBB）和浮动位移轴承（FDB）支撑的主轴轴承系统的新动态建模方法，首先，基于具有每个轴承部件的离散元件来开发FDB的动态模型六个自由度（DOF）。基于开发的FDB动态模型和GUPTA ACBB动态模型，开发了一种完全耦合的主轴轴承系统的动态模型，组合ACBB和FDB。在所提出的主轴轴承系统模型中，主轴轴采用基于Timoshenko光束理论的有限元（Fe）法建模的，考虑了离心力和陀螺仪。动态轴承模型与Fe主轴轴模型之间的耦合限制是通过轴承和由轴承内座和轴承的轴的相应节点共享的轴承和动态振动响应传递到轴的恢复力和矩安装了。已经为带有动态轴承模型的主轴轴承系统开发了一种基于福特语言的程序，该系统使用Newmark-β方法解决的跑步-Kutta-Fehlberg集成方法和Fe轴模型解决了动态轴承模型。基于开发的模型，FDB径向间隙，系统预载和主轴旋转速度对系统动力学的影响，并研究了FDB径向间隙对系统不平衡响应的影响。 D 10.1115 / 14038687

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