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【英文标准名称】:Aerospaceseries-Studs,intitaniumalloyTI-P64001,MoScoated,withserratedlockingringincorrosionresistingsteel-StrengthClass:1100MPa(atambienttemperature);GermanandEnglishversionEN4421:2007
【原文标准名称】:航空航天系列.带锯齿状、耐腐蚀钢锁紧环、MoS2涂覆的、TI-P64001钛合金螺柱.强度等级:1100MPa(室温)
【标准号】:EN4421-2007
【标准状态】:现行
【国别】:
【发布日期】:2008-02
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;航空运输;合金;耐腐蚀钢;设计;尺寸;紧固件;作标记;质量(物质);材料;MJ螺纹;多语种的;额定值;锁紧环;螺钉;航天运输;规范(验收);弹簧固定环;钢;螺柱;表面处理;抗拉强度;热稳定性;螺纹形状;螺纹;钛;钛合金
【英文主题词】:Aerospacetransport;Airtransport;Alloys;Corrosion-resistantsteels;Design;Dimensions;Fasteners;Marking;Mass;Materials;MJ-threads;Multilingual;Ratings;Ringlock;Screws(bolts);Spacetransport;Specification(approval);Springretainingrings;Steels;Studs(fasteners);Surfacetreatment;Tensilestrength;Thermalstability;Threadforms;Threads;Titanium;Titaniumalloys
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_20
【页数】:14P.;A4
【正文语种】:英语


Product Code:SAE J2692
Title:Commercial Vehicle Seat Evaluation - Truck and Bus
Issuing Committee:Truck And Bus Human Factors Committee
Scope: Since the early 1990驴s, studies have been done relating human comfort to the dynamics measured at the vehicle seat but currently there are no test methods or measurements of driver interface conditions at the vehicle seat. The recommended practice describes an objective test method that can be used for measuring driver interface conditions at the vehicle seat while driving a commercial vehicle. By using a pressure measurement system with a pressure sensor pad between the driver and seat cushion, driver interface pressure distribution, contact area and pressure change rate can be measured. When using these measurements with this test procedure, a new metric called Area Pressure Change Rate (aPcrms) or Driver Discomfort Index can be calculated and used for comparing vehicle seats in a dynamic environment.
Rationale: Since the early 1990驴s, studies have been done relating human comfort to the dynamics measured at the vehicle seat but currently there are no test methods or measurements of driver interface conditions at the vehicle seat. The recommended practice describes an objective test method that can be used for measuring driver interface conditions at the vehicle seat while driving a commercial vehicle. By using a pressure measurement system with a pressure sensor pad between the driver and seat cushion, driver interface pressure distribution, contact area and pressure change rate can be measured. When using these measurements with this test procedure, a new metric called Area Pressure Change Rate (aPcrms) or Driver Discomfort Index can be calculated and used for comparing vehicle seats in a dynamic environment.