1、Recommended Practice on Electric Submersible System VibrationsAPI RECOMMENDED PRACTICE 11S8 SECOND EDITION,OCTOBER 2012Recommended Practice on Electric Submersible System VibrationsUpstream SegmentAPI RECOMMENDED PRACTICE 11S8 SECOND EDITION,OCTOBER 2012Special NotesAPI publications necessarily addr
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16、,Washington,DC 20005,standardsapi.org.iiiContentsPage1Scope.12Normative References.13Terms and Definitions.14Vibration Analysis.44.1Harmonic Motion.44.2Concepts of Vibration.64.3Sources of Vibration.74.4Control of Vibration.84.5Vibration in ESP Systems.95Vibration Testing.105.1Vibration Limits.105.2Measurement of Vibration .10Annex A(informative)Units Conversion.12Annex B(informative)Relationship Between Displacement,Velocity,and Acceleration.15Annex C(informative)Classification of Severity of M
