High speed CNC system design. Part II: modeling and identification of feed drives

被引：189

作者：

Erkorkmaz, K ^{[1
]}

Altintas, Y ^{[1
]}

机构：

[1] Univ British Columbia, Dept Mech Engn, Vancouver, BC V6T 1Z4, Canada

来源：

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2001年 / 41卷 / 10期

关键词：

D O I：

10.1016/S0890-6955(01)00003-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Accurate modeling and identification of the feed drives' dynamics is an important step in designing a high performance CNC. This: paper presents a method for identifying the dynamic parameters, as well as the friction characteristics of machine tool drives. The inertia and viscous friction are estimated through an unbiased least squares scheme. The friction model is developed by observing the disturbance torque through a Kalman filer, while jogging the axes under closed loop control at various speeds. The overall axis model is used in designing a high speed feed drive control system, which has been presented in Part III of this paper. As verification of the identified friction model, contouring test results without and with friction compensation are also presented. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1487 / 1509

页数：23

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