基于LabVIEW起落架磁流变减震器模糊控制系统设计与分析
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摘要
建立基于磁流变减震器的飞机起落架系统动力学模型,研究基于Lab VIEW平台的虚拟仪器技术自整定模糊控制方法,利用控制模块的模糊逻辑工具包(Fuzzy Logic Toolkit)中子程序,完成模糊控制器VI(Virtual Instrument)的语言变量、隶属度函数、控制规则及控制器结构等具体设计步骤。通过建立虚拟仪器前面板和程序框图,对飞机在降落和滑跑不同时刻的机身垂直加速度、机身位移和机轮动载荷控制效果动态跟踪。与被动控制比较,调试得到较好的仿真结果后,在起落架震动实验台上进行实验。结果表明,模糊控制优于被动控制,基于Lab VIEW虚拟仪器技术提高了模糊控制系统动态特性和开发效率,具有工程实用价值。
The dynamics model of aircraft landing gear system based on MR( Magneto-rheological) damper is established. We do a research on using the software Lab VIEW( Laboratory Virtual Instrumentation Engineering Workbench) development platform based on technology of virtual instrument to realize the method of self-tuning fuzzy control. Lab VIEW has a control module of fuzzy logic toolkit,with which the design on language variables,membership function,control rules and the controller structure in the fuzzy controller VI( Virtual Instrument) are completed. Through the establishment of the virtual instrument front panel and diagram,the fuzzy controller is dynamically tracking the control effect of aircraft body vertical acceleration,body relative displacement and wheel dynamic load at different moments in aircraft landing and taxiing. Compared with the passive control,experiments are carried out on the landing gear vibration test platform after debugging a better simulation result. The results show that the fuzzy control is better than the passive control. The Lab VIEW virtual instrument technology can improve the dynamic characteristic and the developing efficiency of fuzzy system,has a practical value in engineering.
The dynamics model of aircraft landing gear system based on MR( Magneto-rheological) damper is established. We do a research on using the software Lab VIEW( Laboratory Virtual Instrumentation Engineering Workbench) development platform based on technology of virtual instrument to realize the method of self-tuning fuzzy control. Lab VIEW has a control module of fuzzy logic toolkit,with which the design on language variables,membership function,control rules and the controller structure in the fuzzy controller VI( Virtual Instrument) are completed. Through the establishment of the virtual instrument front panel and diagram,the fuzzy controller is dynamically tracking the control effect of aircraft body vertical acceleration,body relative displacement and wheel dynamic load at different moments in aircraft landing and taxiing. Compared with the passive control,experiments are carried out on the landing gear vibration test platform after debugging a better simulation result. The results show that the fuzzy control is better than the passive control. The Lab VIEW virtual instrument technology can improve the dynamic characteristic and the developing efficiency of fuzzy system,has a practical value in engineering.
引文
[1]李忠献,徐龙河.新型磁流变阻尼器及半主动控制设计理论.北京:科学出版社,2012.
[2]徐龙河,周云,李忠献.半主动磁流变阻尼控制方法的比较与分析[J].世界地震工程,2000,16(3):95-100.
[3]徐晓美,郑燕萍.汽车半主动悬架系统模糊控制仿真研究[J].科学技术与工程,2010,(29):7202-7205.
[4]汪敏生.Lab VIEW基础教程[M].北京:电子工业出版社,2002.
[5]National Instrumets.Fuzzy Logic for G Toolkit Referencemanual[M].Austin:National Instruments,1997.
[6]Khani M.Magnetorheological(MR)damper for Landing Gear system[M].2010.
[7]贾玉红,武晓娟.基于磁流变缓冲器的飞机起落架模糊控制[J].北京航空航天大学报,2008,3(11):1264-1267.
[8]张永胜,高宏力,刘庆杰.基于Lab VIEW的模糊控制系统设计[J].仪表技术与传感器,2012,(3):27-29.
[9]赵宝纯,骆宗安,刘相华.基于Lab VIEW的模糊控制器设计与仿真[J].控制工程,2006,13(1):49-52.
[10]黄琦,李华琳,陈勇,等.起落架磁流变减振系统的特性分析研究[J].电子科技大学学报,2010,39(6):870-874.
[11]徐冬苓,李玉忍.飞机起落架数学模型的研究[J].系统仿真学报,2005,17(4):831-833.
[12]王鹏辉,许金余,李为民,等.机场道面不平度功率谱特性研究[J].中外公路,2008,28(3):50-53.
[2]徐龙河,周云,李忠献.半主动磁流变阻尼控制方法的比较与分析[J].世界地震工程,2000,16(3):95-100.
[3]徐晓美,郑燕萍.汽车半主动悬架系统模糊控制仿真研究[J].科学技术与工程,2010,(29):7202-7205.
[4]汪敏生.Lab VIEW基础教程[M].北京:电子工业出版社,2002.
[5]National Instrumets.Fuzzy Logic for G Toolkit Referencemanual[M].Austin:National Instruments,1997.
[6]Khani M.Magnetorheological(MR)damper for Landing Gear system[M].2010.
[7]贾玉红,武晓娟.基于磁流变缓冲器的飞机起落架模糊控制[J].北京航空航天大学报,2008,3(11):1264-1267.
[8]张永胜,高宏力,刘庆杰.基于Lab VIEW的模糊控制系统设计[J].仪表技术与传感器,2012,(3):27-29.
[9]赵宝纯,骆宗安,刘相华.基于Lab VIEW的模糊控制器设计与仿真[J].控制工程,2006,13(1):49-52.
[10]黄琦,李华琳,陈勇,等.起落架磁流变减振系统的特性分析研究[J].电子科技大学学报,2010,39(6):870-874.
[11]徐冬苓,李玉忍.飞机起落架数学模型的研究[J].系统仿真学报,2005,17(4):831-833.
[12]王鹏辉,许金余,李为民,等.机场道面不平度功率谱特性研究[J].中外公路,2008,28(3):50-53.
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