Prediction of thermo-elastic behavior in a spindle–bearing system considering bearing surroundings

Kim, Sunmin; Lee, Sun-Kyu

doi:10.1016/s0890-6955(00)00103-6

Cited by 83 publications

(42 citation statements)

References 7 publications

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“…Environmental influences like machine shop temperature generally lead to slow changes of machine tool temperatures, but affect the whole volumetric performance. Internal influences like heat generated by bearings and guideways, lead to a local deformation of the machine tool structure and therefore lead to displacements, which change the volumetric performance partially [4,123,124,125,133,134,135,139,168,173,182,196]. Displacements caused by internal heat sources are less predictable and can change faster than those caused by the environment.…”

Section: Measurement Of Thermal Deformationsmentioning

confidence: 99%

Thermal issues in machine tools

et al. 2012

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Section: Measurement Of Thermal Deformationsmentioning

confidence: 99%

Thermal issues in machine tools

et al. 2012

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“…The biggest challenge for a traceable machine tool measurement is to deal with non-controlled shop floor environment. Time and space dependent thermal effects become the dominant uncertainty source for the measurement of large scale devices [4] [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26].…”

Section: Converting a Mt Into A Cmmmentioning

confidence: 99%

Traceability on Machine Tool Metrology: A Review

Mutilba¹,

Gomez-Acedo²,

Kortaberria³

et al. 2017

Preprint

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Errors during manufacture of high value components are not acceptable nowadays in driving industries such as energy and transportation. Sectors such as aerospace, automotive, shipbuilding, nuclear power, large science facilities or wind power manufacture complex and accurate components that demand close measurements and fast feedback into manufacturing processes. New measuring technologies are already available in machine tools, including integrated touch probes and fast interface capabilities. They shall provide the possibility to measure the workpiece during or after the manufacturing process, maintaining the original setup of the workpiece and avoiding the manufacturing process from being interrupted to transport the workpiece to a measuring position. However, the traceability of the measurement process on a machine tool is not ensured yet and measurement data is still not fully reliable for process control or product validation. Due to the similarity between a coordinate measuring machine and a machine tool, some of the methods applied for a correct assessment of uncertainty in coordinate measuring machines are adapted to the challenges of a machine tool. The scientific objective is to determine the uncertainty on a machine tool measurement and, in this way, convert it into a machine integrated traceable measuring process. This paper reviews the fundamentals of machine tool metrology.

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“…The thermal deformation of the hollow shaft in any radial position r can be obtained from Love's displacement equation [32]:…”

Section: Thermal Deformationmentioning

confidence: 99%

Thermal Characteristic Analysis and Experimental Study of a Spindle-Bearing System

Tan

2016

Entropy

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Abstract:In this paper, a thermo-mechanical coupling analysis model of the spindle-bearing system based on Hertz's contact theory and a point contact non-Newtonian thermal elastohydrodynamic lubrication (EHL) theory are developed. In this model, the effect of preload, centrifugal force, the gyroscopic moment, and the lubrication state of the spindle-bearing system are considered. According to the heat transfer theory, the mathematical model for the temperature field of the spindle system is developed and the effect of the spindle cooling system on the spindle temperature distribution is analyzed. The theoretical simulations and the experimental results indicate that the bearing preload has great effect on the frictional heat generation; the cooling fluid has great effect on the heat balance of the spindle system. If a steady-state heat balance between the friction heat generation and the cooling system cannot be reached, thermally-induced preload will lead to a further increase of the frictional heat generation and then cause the thermal failure of the spindle.

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Prediction of thermo-elastic behavior in a spindle–bearing system considering bearing surroundings

Cited by 83 publications

References 7 publications

Thermal issues in machine tools

Thermal issues in machine tools

Traceability on Machine Tool Metrology: A Review

Thermal Characteristic Analysis and Experimental Study of a Spindle-Bearing System

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