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DIN EN 13140-2001 农业机械.糖用和饲料用甜菜收割设备.安全性

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【英文标准名称】:Agriculturalmachinery-Sugarbeetandfodderbeetharvestingequipment-Safety;GermanversionEN13140:2000
【原文标准名称】:农业机械.糖用和饲料用甜菜收割设备.安全性
【标准号】:DINEN13140-2001
【标准状态】:作废
【国别】:德国
【发布日期】:2001-04
【实施或试行日期】:2001-04-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:农用设备;甜菜收获机;试验;事故预防;定义;定义;设计;甜菜;收获机械;安全措施;作标记;机械工程;农业机械;安全工程;安全;饲料用甜菜;马铃薯收割机;甜菜种植;甜菜收割机;危害;规范(验收)
【英文主题词】:Accidentprevention;Agriculturalequipment;Agriculturalmachines;Agriculturaltractors;Backlashes;Beet-harvesters;Beets;Bunkers;Choppingmachines;Contact;Containers;Dangerousspots;Definitions;Design;Distributors;Driver'scabs;Easy-reacharea;Fodderbeets;Footsteps;Handling;Harvestingequipment;Hazards;Hoistingdevices;Instructionsforuse;Lowerboom;Maintenance;Marking;Mechanicalcrimping;Mechanicalengineering;Operatorplaces;Potatoeharvesters;Powertransmissiondevice;Powertransmissionsystems;Safety;Safetyengineering;Safetymeasures;Safetyofmachinery;Safetyrequirements;Seats;Shape;Shearpositions;Shearing;Sievingequipment;Specification(approval);Squeezepositions;Steeringgear;Sugarbeetcultivation;Sugarbeetharvester;Supportingstrap;Testing;Worksequipment
【摘要】:Thedocumentspecifiessafetyrequirementsandtheirverificationforthedesignandconstructionofallsugarbeetandfodderbeetharvestingmachinestrailed,mountedorself-propelledwhichcarryoutoneormoreofthefollowingoperations:leafstripping,topping,lifting,picking-up,cleaning,conveyingandunloadingofbeet.
【中国标准分类号】:B91
【国际标准分类号】:65_060_50
【页数】:21P.;A4
【正文语种】:德语


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【英文标准名称】:Acoustics-Determinationofsoundabsorptioncoefficientandimpedanceinimpedancestubes-Methodusingstandingwaveratio
【原文标准名称】:声学.阻抗管中吸声系数和阻抗的测定.驻波比法
【标准号】:BSENISO10534-1-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-11-02
【实施或试行日期】:2001-11-02
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:吸收;声音吸收;声学测量;声学试验;声学;建筑物;定义;定义(术语);阻抗;反射比因数;吸声系数
【英文主题词】:Absorption;Acousticabsorption;Acousticmeasurement;Acoustictesting;Acoustics;Buildings;Definition;Definitions;Impedance;Reflectancefactor;Soundabsorptioncoefficient
【摘要】:1ThispartofISO10534specifiesamethodforthedeterminationofthesoundabsorptioncoefficient,reflectionfactorandsurfaceimpedanceorsurfaceadmittanceofmaterialsandobjects.Thevaluesaredeterminedfornormalsoundincidencebyevaluationofthestandingwavepatternofaplanewaveinatube,whichisgeneratedbythesuperpositionofanincidentsinusoidalplanewavewiththeplanewavereflectedfromthetestobject.Thismethodcanbeusedforthedeterminationofthesoundabsorptioncoefficientofsoundabsorbersfornormalsoundincidence.Itcanfurtherbeusedforthedeterminationoftheacousticalsurfaceimpedanceorsurfaceadmittanceofsound-absorbingmaterials.Itiswellsuitedforparameterstudiesandforthedesignofsoundabsorbers,becauseonlysmallsamplesoftheabsorbermaterialareneeded.2Therearesomecharacteristicdifferencesbe-tweenthismethodandthemeasurementofsoundabsorptioninareverberationroom(seeISO354).Theimpedancetubemethodcanbeusedforthede-terminationofthereflectionfactorandalsotheim-pedanceoradmittance.Thesoundisincidentnormallyontheobjectsurface.Thereverberationroommethodwill(underidealizedconditions)determinethesoundabsorptioncoefficientforrandomsoundincidence.Theimpedancetubemethodreliesontheexistenceofaplaneincidentsoundwaveandgivesexactvaluesunderthiscondition(measuringandmountingerrorsexcluded).Theevaluationofthesoundabsorptionco-efficientinareverberationroomisbasedonanumberofsimplifyingandapproximateassumptionsconcern-ingthesoundfieldandthesizeoftheabsorber.Soundabsorptioncoefficientsexceedingthevalue1arethereforesometimesobtained.Theimpedancetubemethodrequiressamplesofthetestobjectwhicharethesizeofthecross-sectionalareaoftheimpedancetube.Thereverberationroommethodrequirestestobjectswhichareratherlargeandcanalsobeappliedtotestobjectswithpro-nouncedstructuresinthelateraland/ornormaldirec-tions.Measurementswithsuchobjectsintheimpedancetubemustbeinterpretedwithcare(see9.1).Forthecomputationaltransformationofthetestre-sultsfromtheimpedancetubemethod(normalinci-dence)tothesituationofdiffusesoundincidence,seeannexD.3ThispartofISO10534givespreferencetonu-mericalmethodsofevaluationinsteadofgraphicalmethods,becausecomputerswhichcanperformthesecomputationsareassumedtobeavailable.Someofthequantitiesintheformulaearecomplex.Theargumentsoftrigonometricfunctionsareinradians.
【中国标准分类号】:A42
【国际标准分类号】:91_120_20
【页数】:30P.;A4
【正文语种】:英语