WO2007118931A3 - A method and a system for monitoring the condition and operation of periodically moving objects - Google Patents

A method and a system for monitoring the condition and operation of periodically moving objects Download PDF

Info

Publication number
WO2007118931A3
WO2007118931A3 PCT/FI2007/050187 FI2007050187W WO2007118931A3 WO 2007118931 A3 WO2007118931 A3 WO 2007118931A3 FI 2007050187 W FI2007050187 W FI 2007050187W WO 2007118931 A3 WO2007118931 A3 WO 2007118931A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
signal
measurement signal
monitoring
condition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/FI2007/050187
Other languages
French (fr)
Other versions
WO2007118931A2 (en
Inventor
Harri Mustonen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Automation Oy
Original Assignee
Metso Automation Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metso Automation Oy filed Critical Metso Automation Oy
Priority to DE602007003333T priority Critical patent/DE602007003333D1/en
Priority to US12/225,867 priority patent/US7822580B2/en
Priority to AT07730674T priority patent/ATE449315T1/en
Priority to DK07730674.4T priority patent/DK2005125T3/en
Priority to EP07730674A priority patent/EP2005125B1/en
Publication of WO2007118931A2 publication Critical patent/WO2007118931A2/en
Publication of WO2007118931A3 publication Critical patent/WO2007118931A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/04—Frequency
    • G01H3/08—Analysing frequencies present in complex vibrations, e.g. comparing harmonics present
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/028—Acoustic or vibration analysis
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/14—Quality control systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Quality & Reliability (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)

Abstract

A system and a method for calculating a synchronized time average for a measurement signal obtained from an object (1) to be measured and containing periodical variations. In the method: from the periodical variations of the measurement signal a frequency (fMAX) is determined, said frequency corresponding within predetermined limits (fE-e2, fE+e2) to a frequency estimated as the periodicity (fE) characteristic of the object (1) to be measured; a signal component representing the determined frequency (fMAχ) is separated from the measurement signal by filtering, and the filtered signal is used as a synchronizing signal, and the measurement signal is divided into sequences by means of the synchronizing signal, and the synchronized time average of the sequences is calculated. In an example of the method, the rotating frequency or the moving frequency of the object (1) selected as the periodicity (fE) characteristic to the object.
PCT/FI2007/050187 2006-04-03 2007-04-03 A method and a system for monitoring the condition and operation of periodically moving objects Ceased WO2007118931A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE602007003333T DE602007003333D1 (en) 2006-04-03 2007-04-03 METHOD AND SYSTEM FOR MONITORING THE CONDITION AND OPERATION OF PERIODICALLY MOVING OBJECTS
US12/225,867 US7822580B2 (en) 2006-04-03 2007-04-03 Method and a system for monitoring the condition and operation of periodically moving objects
AT07730674T ATE449315T1 (en) 2006-04-03 2007-04-03 METHOD AND SYSTEM FOR MONITORING THE STATUS AND OPERATION OF PERIODICALLY MOVING OBJECTS
DK07730674.4T DK2005125T3 (en) 2006-04-03 2007-04-03 Method and system for monitoring the condition and periodically moving objects
EP07730674A EP2005125B1 (en) 2006-04-03 2007-04-03 A method and a system for monitoring the condition and operation of periodically moving objects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20065217A FI20065217L (en) 2006-04-03 2006-04-03 Procedure for calculating a synchronized time average
FI20065217 2006-04-03

Publications (2)

Publication Number Publication Date
WO2007118931A2 WO2007118931A2 (en) 2007-10-25
WO2007118931A3 true WO2007118931A3 (en) 2008-05-02

Family

ID=36293810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2007/050187 Ceased WO2007118931A2 (en) 2006-04-03 2007-04-03 A method and a system for monitoring the condition and operation of periodically moving objects

Country Status (7)

Country Link
US (1) US7822580B2 (en)
EP (1) EP2005125B1 (en)
AT (1) ATE449315T1 (en)
DE (1) DE602007003333D1 (en)
DK (1) DK2005125T3 (en)
FI (1) FI20065217L (en)
WO (1) WO2007118931A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090301055A1 (en) * 2008-06-04 2009-12-10 United Technologies Corp. Gas Turbine Engine Systems and Methods Involving Vibration Monitoring
US9618037B2 (en) 2008-08-01 2017-04-11 Honeywell International Inc. Apparatus and method for identifying health indicators for rolling element bearings
US8676387B2 (en) 2008-10-13 2014-03-18 General Electric Company Methods and systems for determining operating states of pumps
US8958995B2 (en) 2009-04-02 2015-02-17 Honeywell International Inc. System and method for monitoring rotating and reciprocating machinery
US8456302B2 (en) 2009-07-14 2013-06-04 Savi Technology, Inc. Wireless tracking and monitoring electronic seal
US8593280B2 (en) 2009-07-14 2013-11-26 Savi Technology, Inc. Security seal
US8432274B2 (en) 2009-07-31 2013-04-30 Deal Magic, Inc. Contextual based determination of accuracy of position fixes
EP2467812A4 (en) * 2009-08-17 2014-10-22 Deal Magic Inc Contextually aware monitoring of assets
US8334773B2 (en) 2009-08-28 2012-12-18 Deal Magic, Inc. Asset monitoring and tracking system
US8314704B2 (en) 2009-08-28 2012-11-20 Deal Magic, Inc. Asset tracking using alternative sources of position fix data
US20130173202A1 (en) * 2011-12-30 2013-07-04 Aktiebolaget Skf Systems and Methods for Dynamic Prognostication of Machine Conditions for Rotational Motive Equipment
WO2013102202A1 (en) 2011-12-31 2013-07-04 Aktiebolaget Skf Systems and methods for energy efficient machine condition monitoring of fans, motors, pumps, compressors and other equipment
US8963733B2 (en) * 2012-02-13 2015-02-24 Honeywell International Inc. System and method for blind fault detection for rotating machinery
US20140288883A1 (en) * 2013-03-25 2014-09-25 Infineon Technologies Ag Method for determining an angle of a magnetic pole of a rotating object
CN107753058B (en) * 2017-11-22 2021-03-02 深圳中科乐普医疗技术有限公司 A shear wave dynamic filtering method
US11961240B2 (en) * 2021-06-11 2024-04-16 Mechanical Solutions Inc. Systems and methods for improved observation and detection using time video synchronization and synchronous time averaging
US12425741B2 (en) 2021-09-24 2025-09-23 Mechanical Solutions Inc. Systems and methods for motion detection, quantification, and/or measurement with exposure correction in video-based time-series signals

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191520A (en) * 1981-05-22 1982-11-25 Hitachi Ltd Oscillation monitor for rotary machine
WO1996005486A1 (en) * 1994-08-15 1996-02-22 Monitoring Technology Corporation Method and apparatus for determining resonance information
US6789025B2 (en) * 2001-12-04 2004-09-07 Skf Condition Monitoring, Inc. Cyclic time averaging for machine monitoring

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI91919C (en) 1990-04-23 1994-08-25 Tapio Makkonen Procedure for analyzing paper
US6526356B1 (en) * 2001-06-19 2003-02-25 The Aerospace Corporation Rocket engine gear defect monitoring method
TW579424B (en) * 2001-07-09 2004-03-11 Shell Int Research Vibration analysis for predictive maintenance in machinery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191520A (en) * 1981-05-22 1982-11-25 Hitachi Ltd Oscillation monitor for rotary machine
WO1996005486A1 (en) * 1994-08-15 1996-02-22 Monitoring Technology Corporation Method and apparatus for determining resonance information
US6789025B2 (en) * 2001-12-04 2004-09-07 Skf Condition Monitoring, Inc. Cyclic time averaging for machine monitoring

Also Published As

Publication number Publication date
FI20065217A0 (en) 2006-04-03
DK2005125T3 (en) 2010-03-15
EP2005125A2 (en) 2008-12-24
DE602007003333D1 (en) 2009-12-31
FI20065217A7 (en) 2007-10-04
ATE449315T1 (en) 2009-12-15
US20090139334A1 (en) 2009-06-04
FI20065217L (en) 2007-10-04
US7822580B2 (en) 2010-10-26
EP2005125B1 (en) 2009-11-18
WO2007118931A2 (en) 2007-10-25

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