Dynamics stiffness enhancement of fast tool servo by acceleration feedback

Research output: Contribution to conferencePaper

Abstract

Fast Tool Servo (FTS) devices are widely used in manufacturing of micro features on large areas. Dynamic stiffness of such devices is usually poor due to their low inertia which cause profile errors. In this paper, a triple feedback scheme is proposed to enhance the dynamic stiffness by introducing acceleration feedback. Position and acceleration signals together with motor current were combined to estimate the cutting force. Then the force is compensated by the controller output. Frequency response tests showed supressed disturbance response around the cross over frequency. Further face turning experiments demonstrated that the new feedback scheme helped reducing the dynamic errors caused by sudden change of cutting forces.

Conference

ConferenceEUSPEN's 19th International Conference & Exhibition
CountrySpain
CityBilbao
Period3/06/197/06/19

Fingerprint

Stiffness
Feedback
Frequency response
Controllers
Experiments

Keywords

  • dynamic stiffness
  • fast tool servo
  • acceleration feedback

Cite this

Ding, F., Luo, X., & Cai, Y. (2019). Dynamics stiffness enhancement of fast tool servo by acceleration feedback. Paper presented at EUSPEN's 19th International Conference & Exhibition, Bilbao, Spain.
Ding, Fei ; Luo, Xichun ; Cai, Yukui. / Dynamics stiffness enhancement of fast tool servo by acceleration feedback. Paper presented at EUSPEN's 19th International Conference & Exhibition, Bilbao, Spain.2 p.
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title = "Dynamics stiffness enhancement of fast tool servo by acceleration feedback",
abstract = "Fast Tool Servo (FTS) devices are widely used in manufacturing of micro features on large areas. Dynamic stiffness of such devices is usually poor due to their low inertia which cause profile errors. In this paper, a triple feedback scheme is proposed to enhance the dynamic stiffness by introducing acceleration feedback. Position and acceleration signals together with motor current were combined to estimate the cutting force. Then the force is compensated by the controller output. Frequency response tests showed supressed disturbance response around the cross over frequency. Further face turning experiments demonstrated that the new feedback scheme helped reducing the dynamic errors caused by sudden change of cutting forces.",
keywords = "dynamic stiffness, fast tool servo, acceleration feedback",
author = "Fei Ding and Xichun Luo and Yukui Cai",
year = "2019",
month = "6",
day = "3",
language = "English",
note = "EUSPEN's 19th International Conference & Exhibition ; Conference date: 03-06-2019 Through 07-06-2019",

}

Ding, F, Luo, X & Cai, Y 2019, 'Dynamics stiffness enhancement of fast tool servo by acceleration feedback' Paper presented at EUSPEN's 19th International Conference & Exhibition, Bilbao, Spain, 3/06/19 - 7/06/19, .

Dynamics stiffness enhancement of fast tool servo by acceleration feedback. / Ding, Fei; Luo, Xichun; Cai, Yukui.

2019. Paper presented at EUSPEN's 19th International Conference & Exhibition, Bilbao, Spain.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Dynamics stiffness enhancement of fast tool servo by acceleration feedback

AU - Ding, Fei

AU - Luo, Xichun

AU - Cai, Yukui

PY - 2019/6/3

Y1 - 2019/6/3

N2 - Fast Tool Servo (FTS) devices are widely used in manufacturing of micro features on large areas. Dynamic stiffness of such devices is usually poor due to their low inertia which cause profile errors. In this paper, a triple feedback scheme is proposed to enhance the dynamic stiffness by introducing acceleration feedback. Position and acceleration signals together with motor current were combined to estimate the cutting force. Then the force is compensated by the controller output. Frequency response tests showed supressed disturbance response around the cross over frequency. Further face turning experiments demonstrated that the new feedback scheme helped reducing the dynamic errors caused by sudden change of cutting forces.

AB - Fast Tool Servo (FTS) devices are widely used in manufacturing of micro features on large areas. Dynamic stiffness of such devices is usually poor due to their low inertia which cause profile errors. In this paper, a triple feedback scheme is proposed to enhance the dynamic stiffness by introducing acceleration feedback. Position and acceleration signals together with motor current were combined to estimate the cutting force. Then the force is compensated by the controller output. Frequency response tests showed supressed disturbance response around the cross over frequency. Further face turning experiments demonstrated that the new feedback scheme helped reducing the dynamic errors caused by sudden change of cutting forces.

KW - dynamic stiffness

KW - fast tool servo

KW - acceleration feedback

UR - https://www.euspen.eu/events/19th-ice-bilbao/

M3 - Paper

ER -

Ding F, Luo X, Cai Y. Dynamics stiffness enhancement of fast tool servo by acceleration feedback. 2019. Paper presented at EUSPEN's 19th International Conference & Exhibition, Bilbao, Spain.