BS-7854-4-1998 ISO-10816-4-1998.pdf
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1、BRITISH STANDARD BS 7854-4:1998 ISO 10816-4: 1998 Mechanical vibration Evaluation of machine vibration by measurements on non-rotating parts Part 4: Gas turbine driven sets excluding aircraft derivatives ICS 17.160; 27.040 Licensed Copy: London South Bank University, London South Bank University, Fr
2、i Dec 08 10:56:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7854-4:1998 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 September 1998 BSI 04-1999 ISBN 0 580 3008
3、1 1 National foreword This British Standard reproduces verbatim ISO 10816-4:1998 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee GME/21, Mechanical vibration and shock, to Subcommittee GME/21/5, Vibration and balancing of ma
4、chines, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and pro
5、mulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under t
6、he section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct appli
7、cation. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the ISO title page, pages ii to iv, pages 1 to 6 and a back cover. This standard has been updated (see
8、copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:56:53 GMT+00:00 2006, U
9、ncontrolled Copy, (c) BSI BS 7854-4:1998 BSI 04-1999i Contents Page National forewordInside front cover Forewordiii Text of ISO 10816-41 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:56:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: L
10、ondon South Bank University, London South Bank University, Fri Dec 08 10:56:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:56:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7854-4:1998 ii BSI 04-1999 Contents P
11、age Forewordiii Introduction1 1Scope1 2Normative references1 3Measurement procedures1 4Evaluation2 4.1Criterion I: Vibration magnitude2 4.2Criterion II: Change in vibration magnitude4 4.3Operational limits4 4.4Supplementary procedures/criteria5 4.5Evaluation based on vibration vector information5 An
12、nex A (normative) Evaluation zone boundaries6 Annex B (informative) Example of setting ALARM and TRIP values6 Annex C (informative) Bibliography6 Figure 1 Measurement points on main bearings3 Table A.1 Evaluation zone boundaries based on bearing housing/pedestal vibration velocity, valid for shaft r
13、otational speed 3 000 r/min to 20 000 r/min6 Descriptors: Vibration, machinery, gas turbine engines, tests, mechanical tests, vibration tests, acceptance testing, estimation, vibration severity. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:56:53 GMT+00:00
14、2006, Uncontrolled Copy, (c) BSI BS 7854-4:1998 BSI 04-1999iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical com
15、mittees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
16、 International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the me
17、mber bodies casting a vote. International Standard ISO 10816-4 was prepared by Technical Committee ISO/TC 108 Mechanical vibration and shock, Subcommittee SC 2 Measurement and evaluation of mechanical vibration and shock as applied to machines, vehicles and structures. ISO 10816 consists of the foll
18、owing parts, under the general title Mechanical vibration Evaluation of machine vibration by measurements on non-rotating parts: Part 1: General guidelines; Part 2: Large land-based steam turbine generator sets in excess of 50 MW; Part 3: Industrial machines with nominal power above 15 kW and nomina
19、l speeds between 120 r/min and 15 000 r/min when measured in situ; Part 4: Gas turbine driven sets excluding aircraft derivatives; Part 5: Machine sets in hydraulic power generating and pumping plants; Part 6: Reciprocating machines with power ratings above 100 kW. Annex A forms an integral part of
20、this part of ISO 10816. Annex B and Annex C are for information only. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:56:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec
21、08 10:56:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7854-4:1998 BSI 04-19991 Introduction IS0 10816-1 is the basic document which describes the general requirements for evaluating the vibration of various machine types when the vibration measurements are made on non-rotating parts. This part o
22、f ISO 10816 provides specific guidance for assessing the severity of vibration measured on the bearing housings or pedestals of gas turbine driven sets. Measurements at these locations characterize reasonably well the state of vibration. Two criteria are provided for assessing the machine vibration.
23、 One criterion considers the magnitude of the observed vibration; the second considers changes in the magnitude. It must be recognized, however, that these criteria do not form the only basis for judging the severity of vibration. For gas turbine sets, it is also common to judge the vibration based
24、on measurements taken on the rotating shafts. Shaft vibration measurement requirements and criteria for gas turbine sets are addressed in separate documents, ISO 7919-1 and ISO 7919-4. 1 Scope This part of ISO 10816 gives specific guidance for assessing the severity of vibration measured on the bear
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