高速列车车内压力波动模糊控制研究
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摘要
高速列车在通过隧道或两车交会时,列车表面会产生很大的气压波动,此压力波动通过车体缝隙和换气风机、风道传入车内,引起车内空气压力较大波动,造成乘客耳鸣、耳痛等症状.影响乘坐舒适性;为了抑制高速列车车内压力波动,根据某型高速列车换气风机特性曲线与车体等效泄露关系,建立了换气风机频率可变的车内外空气压力传递数学模型;采用模糊控制策略,以车内压力、车内压力变化率为控制输入,对高速列车换气系统中的新风风机、废排风机运行频率进行调节;仿真结果表明:该控制方式能够提高现有换气系统对车内空气压力波动的抑制能力,提高乘坐舒适性。
When high-speed train passes through the tunnel or meets each other,the air pressure fluctuation will be generated on the train surface.This fluctuation passes through the body gap and ventilation fan,air duct into the train,which will impact the air fluctuation inside of the train,and symptom of tinnitus or earache may appear,which has an impact on the travelling comfort.In order to restrain the fluctuation of pressure in the high-speed train,according to the characteristic curve of ventilator fan and equivalent leak relations of car body,the transfer relationship between inside and outside is built.The interior pressure and the interior pressure change rate are taken as the control input.The fuzzy algorithm is used to adjust the frequency of the fresh air fan and exhaust fan.The simulation results show that.,this control method can improve the inhibition ability of the existing ventilation system and the travelling comfort.
When high-speed train passes through the tunnel or meets each other,the air pressure fluctuation will be generated on the train surface.This fluctuation passes through the body gap and ventilation fan,air duct into the train,which will impact the air fluctuation inside of the train,and symptom of tinnitus or earache may appear,which has an impact on the travelling comfort.In order to restrain the fluctuation of pressure in the high-speed train,according to the characteristic curve of ventilator fan and equivalent leak relations of car body,the transfer relationship between inside and outside is built.The interior pressure and the interior pressure change rate are taken as the control input.The fuzzy algorithm is used to adjust the frequency of the fresh air fan and exhaust fan.The simulation results show that.,this control method can improve the inhibition ability of the existing ventilation system and the travelling comfort.
引文
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[9]阮晓刚,程怀玉,于乃功,等.一级直线倒立摆匀速行走的模糊控制研究与实现[J].计算机测量与控制,2009,17(1):56-59.
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[11]陈春俊,聂锡城,唐猛.车外空气压力作用下的CRH2型动车组车内空气压力传递函数模型[J].中国铁道科学,2013(7):84-88.
[12]续魁昌.风机手册[M].北京:机械工业出版社,1999.
[13]蔡增基,龙天渝.流体力学泵与风机[M].北京:中国建筑工业版社,1999.
[2]Fujii K,Ogawa T.Aerodynamics of high speed trains passing by each other[J].Computer&Fluids,1995,24(8):469-514.
[3]Ahmen S R,Gawthorpe R G,Mavchrodt P A.Aerodynamics of road and rail vehicles[J].Vehicle System Dynamics,1985,14:319-392.
[4]余南阳.时速160 km,200 km列车通过隧道时产生的压力波动[J].铁道建筑,2003,(12):29-30.
[5]张兴娟,袁修干,王长和,等.高速列车车厢新型压力控制技术的实验分析[J].北京航空大学学报,1999,25(4):451-453.
[6]亢文祥,陈春棉,熊小慧.CRH2动车组新风换气装置对车内压力波动影响试验研究[J].铁道科学与工程学报,2011,(5):84-89.
[7]李树典.CRH2型200 km/h动车组车内压力波动控制研究[J].机车电传动.2009。(2):6-7.
[8]马永娟,陈小强,侯涛.基于模糊预测控制的高速列车速度控制研究[J].计算机测量与控制,2013,21(1):96-99.
[9]阮晓刚,程怀玉,于乃功,等.一级直线倒立摆匀速行走的模糊控制研究与实现[J].计算机测量与控制,2009,17(1):56-59.
[10]苏晓峰。程建峰,韩增盛.高速列车气密性研究综述[J].铁道车辆,2004,42(S):16-20.
[11]陈春俊,聂锡城,唐猛.车外空气压力作用下的CRH2型动车组车内空气压力传递函数模型[J].中国铁道科学,2013(7):84-88.
[12]续魁昌.风机手册[M].北京:机械工业出版社,1999.
[13]蔡增基,龙天渝.流体力学泵与风机[M].北京:中国建筑工业版社,1999.