Experimental characterization of disturbance force in a linear drive system with high-precision rolling guideways

Fujita, Tomoya; Matsubara, Atsushi; Yamazaki, Kazuo

doi:10.1016/j.ijmachtools.2010.11.005

Cited by 43 publications

(8 citation statements)

References 13 publications

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“…Hence, the number of rollers in contact is constant and the load is share equally which is the base of the current formulation. This is inline with the current literature investigating the normal dynamics of the linear guideway 6,7 as well as those investigating friction and horizontal motion 27 which all neglect the localized dynamics of rollers. In practice, there could be some effects from rollers due to localized dynamics such as in the event of defect on the rail which is not considered in the current study.…”

Section: Linear Roller Guideway Dynamicssupporting

confidence: 82%

Coupled tribo-dynamic modelling of linear guideways for high precision machining application

Soleimanian

Mohammadpour

Ahmadian

2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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Linear guideways play a crucial role in determining precision of machine tools. Understanding their dynamic response is essential for objectively controlling their behavior and performance in operation. Due to highly loaded lubricated contacts, mixed-elastohydrodynamic regime is dominant. The mixed-elastohydrodynamic film maintains the coupling between horizontal degree of freedom (feed velocity) and vertical degree of freedom (loading direction). This paper presents a novel tribo-dynamic solution for linear guideways, taking in to account the lubricant effects and coupling between horizontal and vertical degrees of freedom. An analytical tribology model is used implicitly within the dynamic model. For in-depth tribological quantities including pressure and film thickness distribution, an explicit full numerical solution for mixed-elastohydrodynamic is utilized. Results show that the coupled solution of vertical and horizontal degrees of freedom taking in to account lubricated contacts is essential. It is shown that at moderate and light loads, the effect of this coupling and presence of lubricant is more pronounced.

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Section: Linear Roller Guideway Dynamicssupporting

confidence: 82%

Coupled tribo-dynamic modelling of linear guideways for high precision machining application

Soleimanian

Mohammadpour

Ahmadian

2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Rolling elements have been assumed to take equally shared load. is assumption is in line with similar methodologies in the literature [6,7,45].…”

Section: Linear Roller Guideway Implicit Tribo-dynamicssupporting

confidence: 80%

Effect of Lubricant Starvation on the Tribo‐Dynamic Behavior of Linear Roller Guideway

Soleimanian

Mohammadpour

Ahmadian

2021

Shock and Vibration

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This paper presents an experimentally validated numerical approach linear roller guideways considering coupled vertical and horizontal (feed) motions and taking into account lubricant starvation. The inlet starvation is considered by incorporating potential flow method. Results show that starvation has pronounced effect on the lubricant film thickness, friction, and applied load on contact by up to 32%. Localised pressure values may vary by up to 100%. The severity of starvation effect is frequency dependent. It is also revealed that the starvation effect can be controlled by the amount of preload on linear guideway.

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“…Analytical, experimental and FEM are the main research methods of RLG. 5,[10][11][12][13][14][15][16][17][18][19][20][21][22] The analytical and FEM are particularly important in the design stage of determining the parameter configuration of RLG, while the experimental methods are essential for detailed verification of individual components. Shimizu, 10,23 and Ohta and Hayashi 24 first proposed the rigid model of RLG.…”

Section: Introductionmentioning

confidence: 99%

Finite element model for static characteristic analysis of rolling linear guide

Jia

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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From the designer’s point of view, the static precise finite element model of the single ball-raceway, the overall and the unit slice of the rolling linear guide (RLG) are established based on the limited data obtained. According to the contact characteristics of a single ball-raceway, Hertz theory and finite element method (FEM) are used to determine the maximum contact stress and deformation of RLG under a specific preload value. The specific modeling process of the overall and unit slice finite element model of the RLG is described in detail as well. The comparative analysis results indicate that the unit slice finite element model can take place of the overall finite element model at the static level. On the basis of previous research, the mapping laws between external load, preload value, curvature ratio, the carriage’s wall thickness, the guide’s width, and static mechanical properties of RLG are studied. The combined application of these precise finite element models can solve the problems of large calculation and low efficiency in statics of RLG. Meanwhile, it also provides a new way to achieve high-efficiency and high-rigidity design of RLG from the source.

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Experimental characterization of disturbance force in a linear drive system with high-precision rolling guideways

Cited by 43 publications

References 13 publications

Coupled tribo-dynamic modelling of linear guideways for high precision machining application

Coupled tribo-dynamic modelling of linear guideways for high precision machining application

Effect of Lubricant Starvation on the Tribo‐Dynamic Behavior of Linear Roller Guideway

Finite element model for static characteristic analysis of rolling linear guide

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