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eia-364-28e电子连接器振动测试方法-中英.doc

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    • CAL-FENGHAI.-(YICAI)-Company One1 -CAL-本页仅作为文档封面,使用请直接删除EIA-364-28E 电子连接器振动测试方法-中英(总9页)CONTENTS 目录1. Introduction简介 1-21.1. Scope 范围 1-21.2. Object 主旨 1-21.3. Definitions定义 1-22. Test resources 测试程序 2-33. Test specimen 测试样品 3-34. Test procedure 测试程序 4-44.1. Test conditions I, II, III and IV 4-44.2. Test conditions V, VI and VII 测试条件V、VI和VII 4-105. Details to be specified 细节规定 5-156. Test documentation 测试报告 6-16Table1 Vibration conditions .......................................................................................................................52 Values for test condition V ...........................................................................................................133 Values for test condition VI ..........................................................................................................144 Values for test condition VII .........................................................................................................15Figure1 Mounting axis definitions...............................................................................................................32 Vibration test curves - high frequency (displacement in mm) .......................................................73 Vibration test curves - high frequency (displacement in inches)....................................................84 Test condition V, random vibration test curve envelope...............................................................125 Test condition VI, random vibration test curve envelope..............................................................136 Test condition VII, random vibration test curve envelope ...........................................................141. Introduction简介1.1. Scope 范围The standard test procedure details a method to assess the ability of electrical connector components to withstand specified severities of vibration.此试验标准详述了一种用于电子连接器振动试验的标准方法,用以评估电子连接器及其组件承受特定强度振动的能力。

      1.2. Object 主旨The object of this test is to determine the effects of vibration within the predominant or random vibration frequency ranges and magnitudes that may be encountered during the life of the connector.此试验的是用来模拟产品在使用过程中可能遭受到的主要频段或随机振动频段范围内及其振动幅度的环境,以此验证对产品性能的影响情况.1.3. Definitions定义1.3.1. Axis 轴向The following mounting axis definitions shall be employed during the performance of this test. Figure 1 indicates a pictorial view of the axis definitions. The referencing document shall indicate the fixturing required or the axis definitions if different than as stated in figure 1. Axis definitions for symmetrical, square and “free” connectors shall be defined in the Detail Specification.在执行振动测试时,轴向需明确定义清楚。

      图1标示了各轴向的定义若实际测试所使用的轴向与图1不同,则在相关参考文件中需对试验装置要求及轴向进行定义对于具有对称性,方形及不规则的连接器的轴向的定义也要在规范细目中详加定义1.3.1.1. X-axis X-轴Along the longitudinal length of the test sample沿着试件的纵向长度方向1.3.1.2. Y-axis Y-轴The axis perpendicular to the longitudinal length of the sample (transverse direction).垂直于试件纵向长度的方向(横向方向)1.3.1.3. Z-axis Z-轴The axis perpendicular to the fixture seating plane attached to the test table.垂直于固定治具的测试平台的方向1.3.2. The term gn 术语gnThis term is the SI unit for the standard acceleration due to the earth’s gravity, which itself varies with altitude and geographic latitude.gn是国际单位,表示标准的重力加速度,其本身随着高度和地理位置而变化。

      NOTE — In this standard the value of gn is 9.81 m/s2.备注:在这个标准中gn 取9.81 m/s22. Test resources 测试程序2.1. Equipment 设备The monitoring transducer shall be calibrated against a standard transducer having an accuracy of ±2%. The vibration system consisting of the vibration machine, together with its auxiliary test equipment, shall be capable of generating either a sinusoidal or random excitation.传感器需由标准传感器(精度在±2%以内)进行校准振动系统包含有振动机及辅助测试设备,整个系统应能产生正弦或随机振动Test equipment for random vibration shall produce random excitation that possesses a Gaussian (normal) amplitude distribution, except that the acceleration magnitudes of the peak values may be limited to a minimum of three times the rms [three-sigma (3σ) limits].用于随机振动的测试设备所产生的随机振动的振动幅度应符合高斯分布,但加速度的峰值可限止到最小为3 倍的均方根值(区间为3σ)。

      3. Test specimen 测试样品3.1. A vibration test sample shall be a fully wired connector consisting of one of the following, as applicable;振动试验的样品应是完全连接好连接器,且包括下列条件中任一条适用的条件:3.1.1 A connector plug and its mating connector receptacle.连接器的公头及与其相对应的母头;3.1.2 A printed circuit connector receptacle and its mating connector board(s).印刷电路板及与其相对应的连接器;3.1.3 An integral, functional connector assembly.已装配好且具完整功能的组合件3.2. Each test sample shall be prepared with wire and other materials or processes, simulating application assembly of the sample. If normal connector mating is dependent upon forces external to the connector, then such forces and mounting arrangement shall be as closely duplicated as possible (example: printed circuit connectors). If mating is achieved with normal locking means,。

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