车辆轴箱谱的研究

Research of the Bearing Boxes Spectrum

本文概述了车辆轴箱加速度的测试方法,并详细介绍了获取车辆轴箱谱的理论计算和数据处理方法,首次推出了我国客、货车车辆轴箱谱谱线及其拟合函数。为客、货车车辆设计、计算、试验研究提供理论依据。本文在试验数据处理方法及求拟合公式方法等方面均有新的见解。

We had exerted ourselves to complete seven experiments for three years on the three main railway tracks from Beijing to Guangzhou, Beijing to Shanghai and Beijing to Haerbin, running about ten thousand kilometers. The experiment data for accelerations of axle box of railway track the total length of which is about one thousand kilometers.These experiment data were processed to use computer by means of theory of random vibration so that the spectrum lines of excitative spectrum and rifling formulas, suiting the track conditions of our conntry, are obtained. These spectrum lins fifting formulas are gotten from the experiment data for five million sampled point, using the regression analysis.The results of our problem show the new view on both methods process experiment data and technique finding the fitting formulas.This achievement will provide the basic foundation for design and computation as well as experiment investigation of railway vehicle.We append the spectrum lines and the fitting formulas of excitative spectrum.