您的位置: 标准下载 » 协会标准 » SAE 美国机动车工程师学会 »

SAE AIR1407 Prediction Procedure for Near-Field and Far-Field Propeller Noise

作者:标准资料网 时间:2024-05-23 12:30:10  浏览:9845   来源:标准资料网
下载地址: 点击此处下载
Product Code:SAE AIR1407
Title:Prediction Procedure for Near-Field and Far-Field Propeller Noise
Issuing Committee:A-21 Aircraft Noise Measure Noise Aviation Emission Modeling
Scope: This high static thrust and relatively low installed engine power for propellers has been a factor in their consideration as propuslors for vertical and short take-off and landing (V/STOL) aircraft. The simplicity and low cost of the propeller has historically been a factor in its selection for the majority of general aviation aircraft. With the increased emphasis on noise generated by all types of aircraft there has been an increasing interest in controlling the noise of new V/STOL and conventional transport aircraft as well as general aviation aircraft. To assist the designer of new aircraft as well as others interested in the noise characteristics of various propeller configurations the procedure described in this Aerospace Information Report (AIR) has been developed.
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforEvaluatingtheEffectiveSurfaceAreaofZinc-OxideinRubber
【原文标准名称】:评估橡胶中氧化锌有效表面积的标准试验方法
【标准号】:ASTMD4620-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:包装;氧化锌;包装件;橡胶;阻挡层材料;评定;效应;表面;试验
【英文主题词】:packages;zincoxides;packaging;testing;evaluations;barrier-layermaterials;effects;surfaces;rubber
【摘要】:
【中国标准分类号】:G34
【国际标准分类号】:83_060
【页数】:2P;A4
【正文语种】:英语


【英文标准名称】:Digitalcellulartelecommunicationssystem(Phase2).Layer1.Generalrequirements(GSM04.04).
【原文标准名称】:蜂窝式数字电信系统(第2段).第一层.一般要求(GSM04.04)
【标准号】:NFZ83-553-1997
【标准状态】:现行
【国别】:法国
【发布日期】:1997-07-01
【实施或试行日期】:1997-07-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电信设备;地面流动服务设施;欧洲的;公共的;电信;物理层;数字的;规范(验收);移动无线电通信系统;通信网;无线通信业务;无线电话业务;通信系统;远程通信
【英文主题词】:
【摘要】:
【中国标准分类号】:M13
【国际标准分类号】:33_070_50
【页数】:17P;A4
【正文语种】:其他