A study of the relationships governing starting rolling friction

IEEE Trans. Ind. Electron.

2013

This paper presents rolling friction model-based analyses and compensation for slow settling responses in the precise positioning of linear motor-driven table systems. Rolling friction in the table drive mechanisms generates nonlinear elastic friction force in the micro displacement region. The nonlinear behavior causes slow responses at the settling region, deteriorating the fine positioning performance. Effects of the rolling friction on the positioning, therefore, should be analytically examined and compensated to provide the desired control performance. In this research, therefore, a rolling friction model-based analyses and compensation for the slow settling response are presented to improve the precise positioning performance. The proposed examinations and friction compensation for the slow settling response have been verified by numerical simulations and experiments using a prototype of table drive systems.

Section: Comparative Evaluations Of Rolling Friction Modelsmentioning

confidence: 99%

Section: B Rolling Friction Characteristicmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rolling Friction Model-Based Analyses and Compensation for Slow Settling Response in Precise Positioning

IEEE Trans. Ind. Electron.

2013

“…bearing and/or rolling ball guide, deteriorates the positioning accuracy, which behaves as a nonlinear elastic element due to deformations and slips at the contact points between rolling elements and rolling ball guides with lubricant grease [1], [2]. The rolling friction shows different characteristics corresponding to the displacement regions as follows [3]:…”

Section: Introductionmentioning

confidence: 99%

Improvement of settling performance by initial value compensation considering rolling friction characteristic

IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society

2010

This paper presents a novel initial value compensation (IVC) methodology considering rolling friction properties for the fast and precise positioning. Rolling friction in mechanism behaves as a nonlinear elastic element in the micro displacement region, and deteriorates the positioning performance with the slow settling response. In order to improve the performance, a rolling friction model-based feedforward friction compensation is one of promising approaches. However, in the case that the friction model error exists, the model-based compensation approach can not achieve the desired position response during the transient response, resulting in the deterioration of the settling performance with the response variation and the slow response. In this paper, therefore, an IVC using the specified step settling control framework is applied to achieve the required settling performance without the deterioration. Since the proposed IVC can compensate for the effects of the feedforward friction compensation errors during the transient, the overshoot response, which causes the slow settling response, can be suppressed at the settling. The proposed IVC has been verified by experiments using a prototype of linear motor-driven industrial positioning devices.

“…In the research fields on high-precision motion control, it is well known that the rolling friction generated at guides and bearings with rolling elements should be considered in effective controller design (4) (9)- (11) as well as simulation analyses (12)- (14) , since the rolling friction significantly deteriorates the positioning performance. The rolling friction gives quite different properties between macro-and micro-displacement regions (15)- (17) . In the pre-rolling region (micro-displacement region), the rolling friction generates nonlinear elastic friction force, depending on not only the displacement after a) Correspondence to: Yoshihiro Maeda.…”

Section: Introductionmentioning

confidence: 99%

Feedforward Friction Compensation Using the Rolling Friction Model for Micrometer-stroke Point-to-point Positioning Motion

2018

IEEJ Journal IA

This paper examines the response dispersion in the micrometer-stroke point-to-point positioning motion of highprecision servo systems with nonlinear friction, and presents an advanced model-based feedforward (FF) friction compensation technique to improve the servo performance. In servo mechanisms with rolling ball bearings and/or guides, rolling friction is well-known to deteriorate not only the transient response but also the settling accuracy, because of the nonlinear and complicated friction properties in the micro-displacement region. Therefore, effects of the rolling friction on the performance deterioration should be carefully considered to perform precise simulation analyses and to design effective controllers. In this study, first, the mechanism of response dispersion in the micrometer-stroke motion is analyzed in detail through numerical simulations using a rolling friction model. Then, an advanced FF friction compensation technique using the rolling friction model is adopted with consideration of the mechanism of response dispersion. The effectiveness of the rolling friction model-based analyses and the friction compensation are demonstrated for a laboratory prototype linear motor-driven table system.