Vibration monitoring of motorized spindles using spectral analysis techniques

Ching Feng Chang, Jin-Jia Chen

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

High speed machining (HSM) technology is used in a broad range of applications to machine ferrous metals and nonmetallic material. The motorized spindle is one of the major elements to keep the machine running at high productivity. Though the motorized spindle will generate high power and torque at high speed, high removable rate, but the thermal characteristics are more dynamical, speed-dependent and non-linear. The air gap between rotor and stator changes with speed and time, the expansion of rotor, the highly complicated mechanical coupling as well as interface of the mechanical structure. All these factors create centrifugal force to the rotating bearings which not only heat these bearings up, causing bad tolerance, but also create the vibration problem. The worse situation may cause the bearings choked. In this paper, a piezo transducer is used to check the spindle vibration. Once the spindle is out of balance, the transducer gives a dialog response to computerized numerical controller (CNC) which is set with a control level. Based on ISO standard, 2 mm/s is the max acceptable vibration and designed in accordance with 2 V output voltage. Any higher voltage will enable the CNC shut down the spindle before the bearings are damaged. This new concept will prevent spindle from turning dead. As a result, the spectral analysis techniques can record the condition of spindle rotation even under the condition of misoperation.

Original languageEnglish
Pages (from-to)726-734
Number of pages9
JournalMechatronics
Volume19
Issue number5
DOIs
Publication statusPublished - 2009 Aug 1

Fingerprint

Bearings (structural)
Spectrum analysis
Monitoring
Transducers
Rotors
Nonmetallic materials
Controllers
Level control
Electric potential
Stators
Machining
Torque
Productivity
Air
Metals

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

@article{8efccb415c314e0b9a8bf965dc23bc6a,
title = "Vibration monitoring of motorized spindles using spectral analysis techniques",
abstract = "High speed machining (HSM) technology is used in a broad range of applications to machine ferrous metals and nonmetallic material. The motorized spindle is one of the major elements to keep the machine running at high productivity. Though the motorized spindle will generate high power and torque at high speed, high removable rate, but the thermal characteristics are more dynamical, speed-dependent and non-linear. The air gap between rotor and stator changes with speed and time, the expansion of rotor, the highly complicated mechanical coupling as well as interface of the mechanical structure. All these factors create centrifugal force to the rotating bearings which not only heat these bearings up, causing bad tolerance, but also create the vibration problem. The worse situation may cause the bearings choked. In this paper, a piezo transducer is used to check the spindle vibration. Once the spindle is out of balance, the transducer gives a dialog response to computerized numerical controller (CNC) which is set with a control level. Based on ISO standard, 2 mm/s is the max acceptable vibration and designed in accordance with 2 V output voltage. Any higher voltage will enable the CNC shut down the spindle before the bearings are damaged. This new concept will prevent spindle from turning dead. As a result, the spectral analysis techniques can record the condition of spindle rotation even under the condition of misoperation.",
author = "Chang, {Ching Feng} and Jin-Jia Chen",
year = "2009",
month = "8",
day = "1",
doi = "10.1016/j.mechatronics.2009.02.009",
language = "English",
volume = "19",
pages = "726--734",
journal = "Mechatronics",
issn = "0957-4158",
publisher = "Elsevier Limited",
number = "5",

}

Vibration monitoring of motorized spindles using spectral analysis techniques. / Chang, Ching Feng; Chen, Jin-Jia.

In: Mechatronics, Vol. 19, No. 5, 01.08.2009, p. 726-734.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Vibration monitoring of motorized spindles using spectral analysis techniques

AU - Chang, Ching Feng

AU - Chen, Jin-Jia

PY - 2009/8/1

Y1 - 2009/8/1

N2 - High speed machining (HSM) technology is used in a broad range of applications to machine ferrous metals and nonmetallic material. The motorized spindle is one of the major elements to keep the machine running at high productivity. Though the motorized spindle will generate high power and torque at high speed, high removable rate, but the thermal characteristics are more dynamical, speed-dependent and non-linear. The air gap between rotor and stator changes with speed and time, the expansion of rotor, the highly complicated mechanical coupling as well as interface of the mechanical structure. All these factors create centrifugal force to the rotating bearings which not only heat these bearings up, causing bad tolerance, but also create the vibration problem. The worse situation may cause the bearings choked. In this paper, a piezo transducer is used to check the spindle vibration. Once the spindle is out of balance, the transducer gives a dialog response to computerized numerical controller (CNC) which is set with a control level. Based on ISO standard, 2 mm/s is the max acceptable vibration and designed in accordance with 2 V output voltage. Any higher voltage will enable the CNC shut down the spindle before the bearings are damaged. This new concept will prevent spindle from turning dead. As a result, the spectral analysis techniques can record the condition of spindle rotation even under the condition of misoperation.

AB - High speed machining (HSM) technology is used in a broad range of applications to machine ferrous metals and nonmetallic material. The motorized spindle is one of the major elements to keep the machine running at high productivity. Though the motorized spindle will generate high power and torque at high speed, high removable rate, but the thermal characteristics are more dynamical, speed-dependent and non-linear. The air gap between rotor and stator changes with speed and time, the expansion of rotor, the highly complicated mechanical coupling as well as interface of the mechanical structure. All these factors create centrifugal force to the rotating bearings which not only heat these bearings up, causing bad tolerance, but also create the vibration problem. The worse situation may cause the bearings choked. In this paper, a piezo transducer is used to check the spindle vibration. Once the spindle is out of balance, the transducer gives a dialog response to computerized numerical controller (CNC) which is set with a control level. Based on ISO standard, 2 mm/s is the max acceptable vibration and designed in accordance with 2 V output voltage. Any higher voltage will enable the CNC shut down the spindle before the bearings are damaged. This new concept will prevent spindle from turning dead. As a result, the spectral analysis techniques can record the condition of spindle rotation even under the condition of misoperation.

UR - http://www.scopus.com/inward/record.url?scp=67349185017&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67349185017&partnerID=8YFLogxK

U2 - 10.1016/j.mechatronics.2009.02.009

DO - 10.1016/j.mechatronics.2009.02.009

M3 - Article

AN - SCOPUS:67349185017

VL - 19

SP - 726

EP - 734

JO - Mechatronics

JF - Mechatronics

SN - 0957-4158

IS - 5

ER -