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ASTM B 775-2008 镍和镍合金焊接管一般要求用标准规范

上一篇: ASTM A 957/A 957M-2008 一般工业用共同要求的熔模铸造钢和合金的标准规范
下一篇: ASTM A 1055-2008 锌和环氧树脂双涂层钢筋棒用标准规范

标准名称：	智能运输系统 电子收费 系统框架模型
英文名称：	Intelligent transport systems Electronic toll collection System architecture
中标分类：	公路、水路运输 >> 交通管理 >> 交通信息管理
ICS分类：	信息技术、办公机械设备 >> 信息技术应用 >> 信息技术在运输和贸易中的
发布部门：	国家标准化管理委员会
发布日期：	2006-03-10
实施日期：	2006-10-01
首发日期：	2006-03-10
作废日期：	1900-01-01
主管部门：	国家标准化管理委员会
提出单位：	交通部
归口单位：	全国智能运输系统标准化技术委员会
起草单位：	广州新软计算机技术有限公司、交通部公路科学研究所、广东联合电子收费股份有限公司
起草人：	戴连贵、吴穗湘、罗瑞发、龙开红、张北海、杨光、江运志、刘咏平、周煊
出版社：	中国标准出版社
出版日期：	2006-10-01
页数：	平装16开 页数：21, 字数：34千字
计划单号：	20030285-T-348

该标准规定了电子收费系统框架模型的总体架构、逻辑实体和实体间的接口描述，规定了系统中涉及的安全体系；适用于公路收费系统、城市道路收费系统，停车场收费系统也可参考执行。

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Product Code:SAE J1574/2
Title:Measurement of Vehicle and Suspension Parameters for Directional Control Studies--Rationale
Issuing Committee:Vehicle Dynamics Standards Committee
Scope:This SAE Information Report presents the background and rationale for SAE J1574-1.The motor vehicle industry is working toward a more complete understanding of the factors affecting the motions of vehicles on the roadway, by using a variety of techniques that predict responses to road and operator inputs. The capability to predict responses is desirable so that vehicles can be designed for optimum safety and utility. In addition to the force and moment properties of the pneumatic tires, a number of vehicle and suspension parameters affect the response of the vehicle; these include weight, center-of-gravity location, moments of inertia, suspension ride and roll rates, suspension kinematic and compliance properties, and shock absorber characteristics. These parameters must be quantified in order to predict vehicle responses.Measurement of most of these parameters will be limited to determining their values in the linear range for use in directional control simulations. The limitation to linear range characteristics primarily reflects current measurement practice, to which SAE J1574-1 is directed. In the case of mass and inertia properties, this limitation clearly does not apply. For those to which it does apply, it is not felt to be a serious limitation since most of the measurement techniques can be extended beyond the linear range through appropriate increases in steering or suspension displacement or loading. Use of the measured parameters in simulations is assumed as the most frequent use. However, this does not seem to limit their use to simulations. Vehicle and suspension characteristics appropriate for simulation can equally well be used for vehicle and suspension characterization and comparison, suspension development and optimization, and processing of road test data.As noted in SAE J1574-1, vehicles addressed will be limited to passenger cars, light trucks, and on-highway recreational and commercial vehicles with two or more axles of approximately the same wheel track. This excludes bicycles, motorcycles, tricycles, and vehicles intended primarily for off-highway use. This limitation is largely a recognition of the types of vehicles historically measured for ride and directional control simulation, since SAE J1574-1 has been written to document the current state-of-the-art rather than to expand it. Additionally, inclusion of these other vehicles might well require measurement of other chassis characteristics to properly simulate their dynamic characteristics. The measurement of these additional characteristics may not be supported by widespread experimental practice.

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