A comparative study on the dynamics of high speed spindles with respect to different preload mechanisms

Cao, Hongrui; Holkup, T.; Altintaş, Yusuf

doi:10.1007/s00170-011-3356-9

Cited by 84 publications

(45 citation statements)

References 23 publications

(34 reference statements)

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“…Cao [6] investigated the effect of the preload on the dynamics of high speed spindles with respect to different preload mechanisms and conclude that at high speeds and under cutting loads the rigid preload mechanism is more efficient in maintaining the dynamic stiffness of spindles than constant preload. Jui-Pin Hung [7] presents an investigation on the variation of dynamic characteristics of a spindle under the influence of the bearing preload.…”

Section: Introductionmentioning

confidence: 99%

Effect of bearing preload on the dynamic characteristics of the spindle-bearing system

Zhang¹,

Gao²,

Chen³

et al. 2017

JEMM

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Angular contact ball bearings have been extensively utilized in machine tool spindles and the bearing preload plays a significant role on spindle stiffness, rotating precision, heat generation and service life span. With the development of high speed and high precision machining, especially for high speed grinding and milling, both heavy preload at low speed and light preload at high speed must been abled in series in a single machine tool spindle. In order to investigate the effect of the bearing preload on the performance of the spindle, we developed a spindle test rig. In this paper. The effect of bearing preload on the dynamic characteristics of the spindle-bearing system was investigated. The working principle of fixed position preloading method of the spindlebearing system are introduced. For the spindle that utilizing fixed position preloading method, the theory of assembly dimensional chain was applied to analyze the preloading state of the spindle-bearing system in static conditions. The equivalent parametric identification model was established. The finite element dynamic analysis model of the spindle assembly was developed by taking the advantage of the spring-damper elements to simulate the bearing supports. Finite element analysis (FEA) was conducted to evaluate the effect of the preload on the dynamic characteristics of the spindle-bearing system. This paper not only provides guidance on how to correctly assembling high speed and high precision spindle, but also lay a foundation for the investigation of thermal-mechanicaldynamic characteristic of high speed spindle-bearing system.

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Section: Introductionmentioning

confidence: 99%

Effect of bearing preload on the dynamic characteristics of the spindle-bearing system

Zhang¹,

Gao²,

Chen³

et al. 2017

JEMM

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“…Numerical simulation of dynamic response of spindle system (first section) -bearings, rotation speed of 10 000 rpm, is based on all use DYNROT program [6]. Similar studies driven by K. Jauhari, A. Widodo, and I. Haryanto [7], C. E. H. Ventura and A. Hassui [8] and H. Cao, T. Holkup, and Y. Altintas [9] were made combining Finite Element Method (FEM) method using ANSYS, in case of static behavior and ANSYS Parametric Design Language (APDL) for dynamic behavior. Also, for the presented horizontal milling and drilling machine spindle, presented by N. L. Carutasu [10] the static behavior analyses using FEM method and ANSYS software.…”

Section: Introductionmentioning

confidence: 99%

Dynamic behavior of the horizontal milling and drilling machine spindle assembly with Dynrot software

2017

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)Abstract. This article presents research conducted to study the dynamic behavior of the assembly of a horizontal milling CNC machine spindle at the speed of 10 000 rpm and 50 000 rpm. This step aims to determine the critical rotation speeds of the complex system "spindlebearings", by drawing Campbell diagrams. The rotor is a subset of these machines, consisting of a shaft, in which the one or more discs, and which executes a rotating motion around the axis propyl. The curve Campbell contours in the diagram represents the variation of natural pulsations of spindle system, depending on the speed bearing spindle.

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“…A comparative study about dynamic characteristics of high-speed spindle with respect to different preload mechanisms was discussed by Cao et al The performance of spindle under rigid and constant force preload is investigated systematically using a mathematical model under various conditions. 12 For experimental study, Song and Shin 13 investigated the preload in consideration of spindle speed as well as rotation accuracy.…”

Section: Introductionmentioning

confidence: 99%

Investigation of multiple spindle characteristics under non-uniform bearing preload

Zhang

Xiao-hu

Hong

et al. 2016

Advances in Mechanical Engineering

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The non-uniform distribution load during machining and assembly process is crucial for spindle system, especially in complex working conditions. The conception of non-uniform preload adjustment approach was proposed and experimentally investigated in this article. Based on the mechanical equivalent principle, the non-uniform preload was theoretically transformed to the combination of uniform preload and an extra moment. Then, the non-uniform preload of rolling bearing was experimentally measured and analyzed via a spacer with 15-mm wear loss on the end face. The spindle performance factors, such as rotation accuracy, temperature rising, acceleration, and vibration, were all monitored. The rotation center of spindle was deviated in different non-uniform preload conditions. Meanwhile, the temperature and vibration performance of non-uniform preload are superior to those of uniform bearing preload.

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A comparative study on the dynamics of high speed spindles with respect to different preload mechanisms

Cited by 84 publications

References 23 publications

Effect of bearing preload on the dynamic characteristics of the spindle-bearing system

Effect of bearing preload on the dynamic characteristics of the spindle-bearing system

Dynamic behavior of the horizontal milling and drilling machine spindle assembly with Dynrot software

Investigation of multiple spindle characteristics under non-uniform bearing preload

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