作者：冉景洪, 赵玲, 季辰, 刘子强
作者单位：中国航天空气动力技术研究院, 北京 100074
关键词：颤振试验; 信号生成; 数据采集; 风洞试验; labview语言
摘要：
基于ni公司的数据采集硬件设备, 结合跨音速风洞颤振试验特点, 用labview语言为颤振试验设计了一套激励信号生成与多通道同步动态信号采集系统。设计的系统成功实现了新型iepe传感器和传统电荷式传感器兼容、加速度信号与应变信号同步采集、激励信号生成与多通道数据采集同步、直接内存读取数据、数据无限时存盘、信号实时显示等方面的功能。经试验验证, 该系统设计方案完全满足颤振试验数据采集的要求, 获得良好的测试结果, 在多功能同步采集系统设计方面取得了技术性应用成果。
design of excitation signal generation and data acquisition system for flutter test based on labview
ran jing-hong, zhao ling, ji chen, liu zi-qiang
china academy of aerospace aerodynamics, beijing 100074, china
abstract: based on the characteristics of flutter test in wind tunnel and ni daq equipments, a dynamic synchronous data acquisition(daq) system with excitation signal generation was designed for flutter test based on labview. the system can realized several functions, such as compatibility for iepe transducer and traditional charge transducer, synchronous data acquisition of acceleration signal and strain signal, synchronous signal generation and daq, direct memory access, unlimited data streaming as well as dynamic signal real-time display. the validation test showed that the designed system could meet the requirements of flutter test and it was a successful technique application of signal generation and multi-channel dynamic daq for flutter test in wind tunnel.
keywords: flutter test; signal generation; data acquisition; wind tunnel test; labview
2011, 37(1): 84-88 收稿日期: 2010-2-9;收到修改稿日期: 2010-4-28
基金项目:
作者简介: 冉景洪(1980-),男,贵州思南县人,工程师,硕士,主要从事低雷诺数流动和气动弹性研究。
参考文献
[1] 陈文俊. 气动加热对飞行器气动弹性特性的影响[j]. 现代防御技术, 1998, 26(3):20-28.
[2] 刘子强, 崔尔杰, 傅光明, 等. 高超声速飞行器的空气弹性问题[c]//中国第一届近代空气动力学与气动热力学会议论文集, 2006:333-338.
[3] 徐中节, 朱 伟, 王 娟. 燃烧器单嘴试验数据采集与分析[j]. 仪表技术, 2005(5):13-14.
[4] 王 磊, 陶 梅. 精通labveiw 8.0[m]. 1版. 北京:电子工业出版社, 2007:260-269.
[5] 罗晓莉, 郭迎福, 毛征宇. 基于vi的高速数据流盘设计[j].电子测量技术, 2007, 30(8):68-71.
[6] 陈锡辉, 张银鸿. labview 8.20程序设计从入门到精通[m]. 1版. 北京:清华大学出版社, 2007:349-352.
[7] 申焱华, 王汝杰, 雷振山. labview入门与提高范例编程[m].1版. 北京:中国铁道出版社, 2007:104-111.
[8] 侯国屏, 王 珅, 叶齐鑫. labview 7.1编程与虚拟仪器技术[m]. 1版. 北京:清华大学出版社, 2005:184-186.
[9] 边 华, 陈 斌. 软件容错技术与可靠性评估方法[j]. 中国化工装备, 2006(4):17-21.
