随机激励下列车自动门的工作响应振型检测

采用了工作响应分析技术和PSV-400-B型激光扫描测振仪,获得列车自动门的工作响应参数,包括频率和振型。在GB/T 21563-2008模拟长寿命随机振动环境下实施工作响应参数试验,给出了实验方案和系统框图,证明了激光扫描测振仪的准确性。对于某型列车自动门,采用三种扫描测点布置方式:①包括玻璃窗的门扇,②不包括玻璃窗的门扇,③仅对玻璃窗。获得了三种扫描对象的1次工作响应参数,包括工作响应频率及其振型。

Detection for Operation Response Vibration Mode of Train Automatic Door by Random Excitation

The technology of operation response analysis and laser scanning vibrometer with type of PSV-400-B are used to get the operation response parameters of train automatic door, including frequency and vibration mode.The experimental program and the system diagram, which are for the test to obtain the operation response parameters under GB/T 21563-2008 simulating long-life random vibration environment, are offered. The accuracy of the laser scanning vibrometer is proved. Three kinds of scanning measuring point arrangement for the type of train automatic door, which is ①door including glass window, ②door not including glass window, ③glass window only, are selected. The 1st operation response parameters, including operation response frequency and its vibration mode, are obtained from the three kinds of scanning objects.