BS 5944-1-1992 Measurement of airborne noise from hydraulic fluid power systems and components. Method of test for pumps
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ID： |
1271DBB51D1F418991EB40F32FA1357B |
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文件大小(MB)： |
1.24 |
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页数： |
28 |
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日期： |
2024-6-23 |
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BRITISH STANDARD BS 5944 :,. . —側丒聊 —Part 1 : 1992,ISO 4412-1:,1991,Measurement of,airborne noise from,hydraulic fluid power,systems and components,Part 1. Method of test for pumps,UDC 621.65 : 534.6,\(H OPYL\(, IX A\Y \\ 1T1IOI T WRITTKX PKRMISSK ?\ KROM BSI STANDARDS,BS 5944 : Part 1: 1992,Committees responsible for this,British Standard,The preparation of this British Standard was entrusted by the Machinery and,Components Standards Policy Committee (MCE/-) to Ibchnical Committee,MCE/18, upon which the following bodies were represented:,Advanced Manufacturing Technology Research Institute,Association of British Mining Equipment Companies,Bath University,British Compressed Air Society,British Fluid Power Association,British Steel Industry,Department of Trade and Industry (National Engineering Laboratory),Ministry of Defence,The following bodies were also represented in the drafting of the standard,through subcommittees and panels:,British Hydromechanics Research Association,British Railways Board,Society of Motor Manufacturers and Traders Ltd.,This British Standard, having,been prepared under the,direction of the Machinery and,Components Standards Policy,Committee, was published,under the authority of the,Standards Board and comes into,effect on,15 December 1992,. BSI1992,First published 1980,Second edition December 1992,The following BSI references,relate to the work on this,standard:,Committee reference MCE/18,Draft for comment 89/78174DC,ISBN 0 580 213951,Amendments issued since publication,Amd. No. Date Tbxt affected,BS 5944 : Part 1: 1992,Contents,Page,Committees responsible Inside front cover,National foreword ii,Introduction iv,Method,1 Scope 1,2 Normative references 1,3 Definitions 1,4 Measurement uncertainty 2,5 Test environment 2,6 Instrumentation 2,7 Installation conditions 2,8 Operation conditions 3,9 Location and number of sound measurement points 4,10 Tbst procedure 4,11 Information to be recorded 4,12 Ibst report 6,13 Identification statement (Reference to this part of ISO 4412) 6,Annexes,A Calculation of sound levels 7,B Errors and classes of measurement 8,C Guidelines for the application of this part of ISO 4412 9,D Bibliography 20,Tables,1 Standard deviation of sound power level determinations 2,2 Allowable variations of mean indicated values of controlled,parameters 3,B.l Permissible systematic errors of measuring instruments as determined,during calibration 8,Figures,C.l Transmission paths of sound energy from pumps 9,C.2 Instrumentation for manual data logging 10,C.3 Multiple microphone scanning instrumentation 11,C.4 Corrections for background noise 12,C.5 Pump noise test configuration with hemispherical measuring array 13,C.6 Mounting and driveline arrangement for hemispherical measurement 14,C.7 "Minimized'' pump mount (two-bolt flange mounting configuration) 15,C.8 Diagrammatic view of the hemispherical layout showing fluid line,cladding 16,C.9 Example of test circuit 17,BS 5944 : Pirt 1: 1992,National foreword,This Part of BS 5944 has been prepared under the direction of the Machinery and,Components Standards Policy Committee. It is identical with ISO 4412-1 : 1991,Hydraulic fluid power — Tbst code for determinati(m qf airborne noise levels —,Part 1 : Pumpsf published by the International Organization for Standardization,(ISO).,On publication of BS 5944 : Part 1 : 1992 and Pfeirt 2 : 1992, the 1980 editions of,BS 5944 : Parts 1, 2 and 3 will be withdrawn.,BS 5944 comprises of the following Parts.,Part 1 Method qf test for pumps,Part 2 Method qf test for motors,Part 3 Withdrawn,P&rt 4 Method qf determining sound power levels from valves controlling,flow and pressure,Part 5 Simplified method qf determining sound power levels from,pumps using an anechoic chamber,Part 6 Method qf testfor pumps using parallelepiped microphone array,For the purposes of the British Standard the identification statement required by,clause 13 may be replaced by the following:,'Airborne noise levels determined in accordance with BS 5944 : Part 1',Cross-references,International standard Corresponding British Standard,ISO 3019-2 : 1986 BS 6276 : 1987 Specification for dimensions and,identification codefor mounting flanges and shaft ends,for hydraulic fluid power pumps and motors,(Technically equivalent),ISO 3448 : 1975 BS 4231 : 1982 Classification for viscosity grades qf,industrial liquid lubricants,(Identical),BS 4196 Sound power levels qf noise sources,ISO 3744 : 1981 P^rt 4 : 1981 Engineering methods for determination qf,sound power levels for sources mfree-field conditions,over a reflecting plane,(Identical),ISO 3745 : 1977 Part 5 : 1981 Precision methods for determinati……
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