portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">检测标准规定了对要安装在轨道机车车辆上的设备进行随机振动和冲击试验的要求.由于轨道运行环境的影响,为了保证设备的质量,应模拟设备使用环境条件对其进行检测，主要用于固定式轨道系统上的机车车辆,也可用于其他场合.
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">根据产品的使用安装场合选择测试等级：
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">1类 车体安装
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">A级: 车体上(或下部)直接安装的柜体,组件,设备和部件;
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">B级:车体上(或下部)直接安装的箱体内部的组件,设备和部件
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">2类 转向架安装
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">安装在轨道机车车辆转向架上的柜体,组件,设备和部件
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">3类 车轴安装
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">安装在轨道机车车辆轮对装置上的组件,设备和部件或总成.
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">测试顺序：
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">首先做增强随机振动量级的垂向，横向和纵向模拟长寿命试验，其次作垂向，横向和纵向冲击试验；然后作运输和装卸试验，后作垂向，横向和纵向功能随机试验。
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">测试时间：
portant; margin-bottom: 20px !important; width: auto !important; line-height: 2em !important;">portant; margin-right: 0px !important; margin-left: 0px !important; width: auto !important;">功能性振动：每方向不少于10min,长寿命振动：每方向5小时，机械冲击：三轴六向18次冲击（时间很短）