摘要
对我国干线轨道谱、美国轨道谱、德国高低速轨道谱进行动态反演得到对应时间历程的振动信息,是车辆动力学仿真计算、整车振动台试验重要的输入激励。本文采用相位随机的三角级数法为理论基础来实现轨道谱的反演,应用Labview编制反演程序,应用LabSQL技术管理反演数据,应用MathScript实现数据回放。充分利用了Labview虚拟仪器操作简单、界面友好的特点,有利于试验人员的操作和使用,必将为工程试验室整车振动试验技术的发展和试验能力的提升做出一定的贡献。
The time-history information of a variety of spectrums such as Chinese main line rail spectrum,American rail spectrum,Germany high-velocity and low-velocity spectrum and so on,is the important exciting input of vehicle dynamics simulation and vibration experiment of the whole vehicles. The spectrum inversion theory is the trigonometric series method with random phases. The spectrum inversion procedure is designed on the platform of Labview. The two standard tools named LabSQL and Math Script are used to manage and play back the simulation data,respectively. The main advantages of Labview virtual instrument such as operation simplification,friendly interface are beneficial to application and operation of test person. The inversion procedure will improve the experiment technique and experiment ability of the high-speed train national engineering laboratory.
出处
《工程与试验》
2016年第3期6-8,58,共4页
Engineering and Test
