ANSI AGMA 6000-B96-1996 Specification for Measurement of Linear Vibration on Gear Units.pdf

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1、ANSI/AGMA 6000-B96Revision of ANSI/AGMA 6000-A88Reaffirmed January 2010American National StandardSpecification for Measurementof Linear Vibration on GearUnitsANSI/AGMA6000-B96iiSpecification for Measurement of Linear Vibration on Gear UnitsANSI/AGMA 6000-B96Revision of ANSI/AGMA 6000-A88Approval of

2、an American National Standard requires verification by ANSI that the require-ments for due process, consensus, and other criteria for approval have been met by thestandards developer.Consensus is established when, in the judgment of the ANSI Board of Standards Review,substantial agreement has been r

3、eached by directly and materially affected interests.Substantial agreement means much more than a simple majority, but not necessarily una-nimity. Consensus requires that all views and objections be considered, and that aconcerted effort be made toward their resolution.The use of American National S

4、tandards is completely voluntary; their existence does notin any respect preclude anyone, whether he has approved the standards or not, frommanufacturing, marketing, purchasing, or using products, processes, or procedures notconforming to the standards.The American National Standards Institute does

5、not develop standards and will in nocircumstances give an interpretation of any American National Standard. Moreover, noperson shall have the right or authority to issue an interpretation of an American NationalStandard in the name of the American National Standards Institute. Requests for interpre-

6、tation of this standard should be addressed to the American Gear ManufacturersAssociation.CAUTION NOTICE: AGMA technical publications are subject to constant improvement,revision, or withdrawal as dictated by experience. Any person who refers to any AGMATechnical Publication should be sure that the

7、publication is the latest available from theAssociation on the subject matter.Tables or other self-supporting sections may be quoted or extracted. Credit lines shouldread: Extracted from ANSI/AGMA 6000-B96, Specification for Measurement of LinearVibration on Gear Units, with the permission of the pu

8、blisher, the American GearManufacturers Association, 1500 King Street, Suite 201, Alexandria, Virginia 22314.Approved September 6, 1996ABSTRACTThis standard presents a method for the measurement of linear vibrations on a gear unit. Instrumentation, mea-suring methods, test procedures and discrete fr

9、equency vibration limits are recommended for acceptancetesting. An annex which lists system effects on gear unit vibration and responsibility is also provided.Published byAmerican Gear Manufacturers Association1500 King Street, Suite 201, Alexandria, Virginia 22314Copyright 1996 by American Gear Man

10、ufacturers AssociationAll rights reserved.No part of this publication may be reproduced in any form, in an electronicretrieval system or otherwise, without prior written permission of the publisher.Printed in the United States of AmericaISBN: 1-55589-666-9AmericanNationalStandardANSI/AGMA 6000- B96A

11、MERICAN NATIONAL STANDARDiiiContentsPageForeword iv.1 Scope 12 References 13 Definitions 24 Application 25 Instrumentation 36 Vibration measurement 4.7 Test conditions 4.8 Acceptable levels 59 Measurement report 7Tables1 Applicable vibration instrumentation standards 3.2 Preferable units for vibrati

12、on measurements 4.Figures1 Displacement limits 6.2 Velocity limits 63 Acceleration limits 7AnnexesA Relationship between displacement, velocity and acceleration waveforms 9B System effects and responsibility 13C ISO vibration rating curves 15.D Metric to non-metric conversion of vibration measuremen

13、ts 19.E Bibliography 21ANSI/AGMA 6000- B96 AMERICAN NATIONAL STANDARDivForewordThe foreword, footnotes, and annexes, if any, in this document are provided forinformational purposes only and are not to be construed as a part of ANSI/AGMA Standard6000-B96, Specification for Measurement of Linear Vibra

14、tion on Gear Units.ANSI/AGMA 6000-A88 included and superseded the information previously published inAGMA 426.01 (1972), Specification for Measurement of Lateral Vibration on High SpeedHelical and Herringbone Gear Units.Performance of driven equipment is dependent upon the individual characteristics

15、 of theprime mover, gear unit, driven machine and support structure, as well as their combinedeffects as a system. The proper assessment of performance characteristics is essential forrealistic evaluation. The knowledge and judgment required to properly evaluate the gearunit vibration comes primaril

16、y from years of accumulated experience in designing,manufacturing, and operating gear units. For these reasons, the use of this standard andthe evaluation of test results for specific gear product applications should only be attemptedby experienced personnel.The complexity of gear vibration phenomen

17、a makes most vibration standards difficult toapply or to properly interpret. The AGMA Acoustical Technology Committee developed theSpecification for Measurement of Linear Vibration on Gear Units to provide a common basisfor communication between project engineers, gear manufacturers, and users. Thep

18、urpose was, also, to encourage the maximum practical degree of uniformity andconsistency among vibration measurement practices within the gear industry.Because of the wide variation of gear driven systems and structural supports, ANSI/AGMA6000-A88 identified certain areas where special consideration

19、s might be necessary andmust be agreed upon between purchaser and gear manufacturer when discussing gearvibrations.ANSI/AGMA 6000-A88 was approved as a standard by the AGMA membership in May1988 and approved as an American National Standard on June 16, 1988.ANSI/AGMA 6000-B96 is a revision of ANSI/A

20、GMA 6000-A88. The revision includesclarification of application of the standard, changes to annex A, and the addition of a newannex C, from ISO 8579-2.ANSI/AGMA 6000-B96 was approved as a standard by the AGMA membership in June1996, and approved as an American National Standard on September 6, 1996.

21、Suggestions for improvement of this standard will be welcome. They should be sent to theAmerican Gear Manufacturers Association, 1500 King Street, Suite 201, Alexandria,Virginia 22314.ANSI/AGMA 6000- B96AMERICAN NATIONAL STANDARDvPERSONNEL of the AGMA Acoustical Technology CommitteeChairman: E. Wudi

22、 Cummins Engine CoVice Chairman: R.A. Schunck The Falk CorporationACTIVE MEMBERSJ.B. Amendola MAAG Gear Company, LtdD.D. Behlke Twin Disc, Inc.C. Bowes General Motors CorporationG. Matson Caterpillar, IncJ.L. Radovich Davis-StandardASSOCIATE MEMBERSD.L. Borden Gear Research InstituteD. Cressman Phil

23、adelphia Mixers CorpM.F. Dalton General Electric CompanyP.R. Dickson Bay City Iron Works, IncJ.M. Franchuk WesTech Gear CorporationD.R. Houser Ohio State University.T. Kennan Emerson Power Trans. CorpA.J. Lemanski Penn State UniversityL. Lloyd Lufkin Industries, IncW. Mark Penn State University.D.A.

24、 McCarroll The Gleason Works.W. Nageli MAAG Gear Company, Ltd.M.W. Neesley WesTech Gear CorporationJ.R. Partridge euro Lufkin bvR.L. Platt General Motors CorporationD.C. Root Otis ElevatorJ. Simonelli Emerson Power TransmissionN. Sonti Penn State University.F.A. Thoma F.A. Thoma, Inc.D. Thurman Cate

25、rpillar, Inc.K. Umezawa Japan Gear Manufacturing CoM. Voight General Motors CorporationANSI/AGMA 6000- B96 AMERICAN NATIONAL STANDARDviThis page is intentionally left blank.1ANSI/AGMA 6000- B96AMERICAN NATIONAL STANDARDAmerican National Standard -Specification forMeasurement of LinearVibration on Ge

26、ar Units1 ScopeThis standard presents a method for measuringsteady state filtered linear vibrations of a gear unit.Types of instrumentation, measurement methods,and testing procedures for the determination oflinear vibration levels for specific types of gear unitsare provided. Vibration limits at di

27、screte frequenciesare recommended for acceptance testing. It is notthe intent of this standard to provide unfiltered limits.The recommended limits and conditions specifiedherein are intended as the vibration criteria forperformance of the gear drive during the equipmentmanufacturers test when specif

28、ically agreed to bythe manufacturer and purchaser.This standard is specifically applicable to enclosedspeed reducing or increasing gear drive unitsdesigned, rated, and lubricated in accordance withANSI/AGMA product standards as indicated in 4.3.This standard does not apply to integrated systems,shaf

29、t-mounted units, special or auxiliary drive trainsor power take-off gears. Vibration amplitudesexceeding the recommendations of this specifica-tion for drives with flexible housings or on flexiblesupports may also be allowable if accounted for inthe design. Acceptable limits for this type ofequipmen

30、t should be independently specified.However, if negotiated, this standard may be appliedto such equipment.Torsional and transient vibrations of a geared systemare not included in this standard.NOTE: Compliance with this standard does notconstitute a warranty of the measured gear unitsperformance und

31、er installed field service conditions.Five annexes are for reference only and are not apart of this standard.Annex A illustrates the relationship betweenvibratory displacement, velocity and accelerationwaveforms.Annex B discusses systems effects and responsibility.Annex C presents five classes of ge

32、ar unit vibrationrating and a subjective procedure for selecting theproper rating based on the application andtransmitted power.Annex D gives the conversion of metric, SI units tonon-metric (inch) units.Annex E contains a bibliography.2 ReferencesThe following standards contain provisions which,thro

33、ugh reference in this text, constitute provisions ofthis American National Standard. At the time ofpublication, the editions indicated were valid. Allstandards are subject to revision, and parties toagreements based on this American NationalStandard are encouraged to investigate the possibil-ity of

34、applying the most recent editions of thestandards indicated below.ANSI-S2.2-1959 (R1990), Methods for theCalibration of Shock and Vibration PickupsANSI-S2.4-1976 (R1990), Methods for Specifyingthe Characteristics of Auxiliary Analog Equipmentfor Shock and Vibration MeasurementsANSI-S2.10-1971 (R1990

35、), Method for Analysisand Presentation of Shock and Vibration DataANSI-Z24.21-1954 (R1989), Specifying the Char-acteristics of Pickups for Shock and VibrationMeasurementsISO 1925:1990, Mechanical vibration - Balancing -VocabularyISO 2041:1990, Vibration and shock - VocabularyISO 2954:1975, Mechanica

36、l vibration of rotatingand reciprocating machinery - Requirements forinstruments for measuring vibration severityANSI/AGMA 6000- B96 AMERICAN NATIONAL STANDARD23 DefinitionsThe following definitions are provided to identifyspecific terms and phrases used in this standard.The terms used, wherever not

37、ed, conform with ISO1925, Balancing vocabulary, ISO 2041, Vibrationand shock - Vocabulary or ANSI S1.1, AcousticalTerminology (Including Mechanical Shock andVibration).acceleration: A vector that specifies the timederivative of velocity (ISO 2041 - 1.03).accelerometer: A transducer which converts an

38、input acceleration to an output that is proportional tothe input acceleration (see definition of transducer).bearing block: The structural component whichsupports the bearing. It may be part of the housingcasing or supported inside the oil-retaining casing.bearing journal: That part of a rotor (shaf

39、t) which isin contact with or supported by a bearing in which itrevolves (ISO 1925 - 2.4).displacement: A vector quantity that specifies thechange of position of a body, or particle, with respectto a reference frame (ISO 2041 - 1.01).discrete frequency: A single frequency of vibrationthat is generat

40、ed by a gear unit component.filter: A device for separating oscillations on a basisof their frequency. It introduces relatively smallattenuation to wave oscillations in one or morefrequency bands, and relatively large attenuation towave oscillations of other frequencies (ISO 2041 -B14).frequency: Th

41、e reciprocal of the fundamentalperiod (time rate of repetition of a periodicphenomenon).NOTE: The unit of frequency is the hertz (Hz), whichcorresponds to one cycle per second (ISO 2041 -2.023).linear vibration: A vibration in which the locus of avibrating point is a straight line (ISO 2041 - 2.046)

42、.non- contact probe: A non-contacting transducerwhich converts an input distance or displacementinto an electrical output that is proportional to theinput distance or displacement.peak value: The maximum value of a quantity(acceleration, velocity, displacement) during a giveninterval (ISO 2041 - 2.0

43、36).peak- to- peak value (of an oscillating quantity):The algebraic difference between the extremevalues of the quantity (ISO 2041 - 2.037).resonance: Resonance of a system in forcedoscillation exists when any change, however small,in the frequency of excitation causes a decrease inthe response of t

44、he system (ISO 2041 - 2.074).transducer: A device designed to receive energyfrom one system and supply energy, of either thesame or of a different kind, to another system in sucha manner that the desired characteristics of the inputenergy appears at the output (ISO 2041 - 4.01).velocity: A vector th

45、at specifies the time derivativeof displacement (ISO 2041 - 1.02).vibration: The variation with time of the magnitudeof a quantity which is descriptive of the motion orposition of a mechanical system, when the magni-tude is alternately greater and smaller than someaverage value or reference (ISO 204

46、1 - 2.001).4 Application4.1 Unit type limitationsThis standard applies only to power transmissiongear units, comprised of a gear train and thenecessary bearings and shafts in an individualhousing. The gear unit should be tested in a mannerto minimize system effects such as listed in annex B.Acceptab

47、le limits for tests of geared equipmentoutside the scope of this standard should beindependently specified. However, if negotiated,this standard or others may be applied to suchequipment.4.2 System considerationsVibration levels of the gear unit in field service maybe adversely affected by factors n

48、ot under thecontrol of the gear manufacturer, as listed in annexB. Therefore, gear manufacturers cannot be heldresponsible for higher vibration levels resulting fromenvironmental and system influences in fieldinstallation.CAUTION: System effects should be analyzed duringthe initial design stage of a

49、 transmission system. Theresponsibility for this analysis must be clearly definedduring this stage. All system component manufactur-ers should be made aware of this decision onresponsibility.ANSI/AGMA 6000- B96AMERICAN NATIONAL STANDARD34.3 Applicable designsThis standard applies to gear units designedgenerally in accordance with the followingstandards:ANSI/AGMA 6010-E88, Standard for Spur, Helical,Herringbone, and Bevel Enclosed Drives.ANSI/AGMA 6011-G92, Specification for HighSpeed Helical Gear Units.ANSI/AGMA 6017-E86 (R1994), R