【英文标准名称】:Specificationforaircraftmaterial-12percentchromiumcorrosion-resistingsteel(freemachining)(45/55tonf/sqin:limitingrulingsection6in)
【原文标准名称】:飞机材料规范.含12%铬耐蚀钢(高速切削)(45/55吨力/平方英寸;限定等圆断面6英寸)
【标准号】:BS2S124-1964
【标准状态】:作废
【国别】:英国
【发布日期】:1964-01-31
【实施或试行日期】:1964-01-31
【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】:钢;锻件;耐腐蚀钢;坯锭;热处理;化学成分;航空运输工程;铬钢;不锈钢;快削钢;材料的机械性能;飞行器部件;棒材;名称与符号;硬度;抗拉强度
【英文主题词】:Airtransportengineering;Aircraftcomponents;Bars(materials);Billets;Chemicalcomposition;Chromiumsteels;Corrosion-resistantsteels;Designations;Forgings;Free-machiningsteels;Hardness;Heattreatment;Mechanicalpropertiesofmaterials;Stainlesssteels;Steels;Tensilestrength
【摘要】:BRITISHSTANDARDSPECIFICATIONFORAIRCRAFTMATERIAL12PERCENTCHROMIUMCORROSION-RESISTINGSTEEL1.Inspectionandtestingprocedure.2.Processofmanufacture.3.Chemicalcomposition.4.Surfacedressing.5.Condition.6.Finalheattreatment.7.Mechanicalproperties.
【中国标准分类号】:V11
【国际标准分类号】:49_025_10
【页数】:4P.;A4
【正文语种】:英语


Product Code:SAE AIR1935
Title:Methods of Controlling Distortion of Inlet Airflow During Static Acoustical Tests of Turbofan Engines and Fan Rigs
Issuing Committee:A-21 Aircraft Noise Measure Noise Aviation Emission Modeling
Scope:Generally it is desirable during static engine noise testing to simulate the noise-generating processes that occur during takeoff or landing. One factor that may have significant influence on fan noise from turbofan engines during static testing is the airflow distortion encountered by the low-pressure fan stage. This report presents technical details on devices that "condition" the airflow entering the engine to more nearly simulate flight operations without introducing a detrimental impact on sound propagating from the engine.