叶片式液压减振器流场特性仿真研究
|
摘要
叶片式液压减振器内部流场特性对减振器的阻尼工作性能优劣至关重要。根据叶片式液压减振器结构特性及工作原理,建立叶片式液压减振器无缝隙流场仿真模型与有缝隙流场仿真模型,并考虑减振器的粘温特性,确定减振器的流场特性,为准确研究减振器阻尼特性奠定基础。模拟得到了叶片式液压减振器模型在不同速度激励、油液温度下,相邻高、低压腔内压差大小及变化规律。结果表明,缝隙与油液温度对流场特性的影响非常明显,在进行叶片式液压减振器内部流场特性分析时,需要重点考虑,才能更为准确地把握叶片式液压减振器内部的流场特性与工作性能。该研究的研究方法可以推广到其他类型液压减振器的内部流场研究中。
The internal flow field characteristic of vane damper is very important for a good damping performance.On the basis of structure characteristic and working principle of vane damper and considering the viscosity-temperature characteristic,the simulation models of vane damper with slot leakage and without it are built,which lays the foundation for study of the damping characteristic. The pressure difference and change between high-pressure chamber and low-pressure chamber at different speed excitation and oil temperature are obtained. The results show that,the slot leakage and oil temperature have obvious influence on the flow field characteristics,which should be taken into serious consideration,in order to have a better understanding of vane damper flow field characteristic and working performance. The research method can be expanded to other hydraulic damper flow field study.
The internal flow field characteristic of vane damper is very important for a good damping performance.On the basis of structure characteristic and working principle of vane damper and considering the viscosity-temperature characteristic,the simulation models of vane damper with slot leakage and without it are built,which lays the foundation for study of the damping characteristic. The pressure difference and change between high-pressure chamber and low-pressure chamber at different speed excitation and oil temperature are obtained. The results show that,the slot leakage and oil temperature have obvious influence on the flow field characteristics,which should be taken into serious consideration,in order to have a better understanding of vane damper flow field characteristic and working performance. The research method can be expanded to other hydraulic damper flow field study.
引文
[1]丁法乾.履带式装甲车辆悬挂系统动力学[M].北京:国防工业出版社,2004.DING Faqian.Dynamics of Tracked Armored Vehicle Suspension System[D].Beijing:National Defence Industry Press,2004.
[2]王文瑞.新型叶片减振器结构设计与悬挂性能分析[D].北京:北京理工大学,2005.WANG Wenrui.New Vane Damper Structure Design and Suspension Performance Analysis[D].Beijing:Beijing Institute of Technology,2005.
[3]王文瑞,闫晓强,顾亮.基于紊流模型的可控叶片减振器阻尼特性参数识别[J].农业机械学报,2014,45(4):8-13.WANG Wenrui,YAN Xiaoqiang,GU Liang.Damping Characteristics Parameter Identification of Controllable Vane Damp Based on Turbulent Model[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(4):8-13.
[4]王文瑞,黄华,顾亮.叶片式可控阻尼减振器阻尼特性分析与试验[J].农业机械学报,2009,40(1):26-30.WANG Wenrui,HUANG Hua,GU Liang.Analysis of Damping Characteristics and Experiment on Controllable Damping Vane Damper[J].Transactions of the Chinese Society for Agricultural Machinery,2009,40(1):26-30.
[5]任欣,王文瑞,顾亮.叶片减振器比例控制阀动态特性仿真与实验[J].液压与气动,2015,(9):73-76.REN Xin,WANG Wenrui,GU Liang.Simulation and Experiment Study of Vane Damp’s Proportional Control Valve[J].Chinese Hydraulics&Pneumatics,2015,(9):73-76.
[6]王文瑞,顾亮,王雪红.叶片式减振器阻尼特性分析与实验研究[J].液压与气动,2008,(5):10-13.WANG Wenrui,GU Liang,WANG Xuehong.Analysis of Damping Characteristics and Test Study About Vane Damp[J].Chinese Hydraulics&Pneumatics,2008,(5):10-13.
[7]蔡兆忠,李慧梅,安钢,等.履带车辆悬挂系统振动仿真与减振器能耗分析[J].装甲兵工程学院学报,2012,26(3):39-41.CAI Zhaozhong,LI Huimei,AN Gang,et al.Vibration Simulation of Tracked Vehicle Suspension System and Damper Consumption Analysis[J].Journal of Academy of Armored Force Engineering,2012,26(3):39-41.
[8]袁传义,何庆,张焱.一种可调阻尼减振器的设计与试验研究[J].液压与气动,2012,(12):107-111.YUAN Chuanyi,HE Yi,ZHANG Yan.Design and Experiment Study of an Adjustable Damping Shock Absorber[J].Chinese Hydraulics&Pneumatics,2012,(12):107-111.
[9]张进秋,彭志召,张建,等.叶片式磁流变液减振器结构设计与优化[J].振动.测试与诊断,2013,(1):132-137.ZHANG Jinqiu,PENG Zhizhao,ZHANG Jian,et al.Design and Optimization of Vane Magneto-rheological Fluid Damper[J].Journal of Vibration,Measurement&Diagnosis,2013,(1):132-137.
[10]贺李平,顾亮,龙凯,等.基于流—固耦合的汽车减振器动态特性仿真分析[J].机械工程学报,2013,48(13):96-101.HE Liping,GU Liang,LONG Kai,et al.Simulation Analysis of Dynamic Characteristics of Automobile Shock Absorbers Based on Fluid-structure Interaction[J].Journal of Mechanical Engineering,2013,48(13):96-101.
[2]王文瑞.新型叶片减振器结构设计与悬挂性能分析[D].北京:北京理工大学,2005.WANG Wenrui.New Vane Damper Structure Design and Suspension Performance Analysis[D].Beijing:Beijing Institute of Technology,2005.
[3]王文瑞,闫晓强,顾亮.基于紊流模型的可控叶片减振器阻尼特性参数识别[J].农业机械学报,2014,45(4):8-13.WANG Wenrui,YAN Xiaoqiang,GU Liang.Damping Characteristics Parameter Identification of Controllable Vane Damp Based on Turbulent Model[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(4):8-13.
[4]王文瑞,黄华,顾亮.叶片式可控阻尼减振器阻尼特性分析与试验[J].农业机械学报,2009,40(1):26-30.WANG Wenrui,HUANG Hua,GU Liang.Analysis of Damping Characteristics and Experiment on Controllable Damping Vane Damper[J].Transactions of the Chinese Society for Agricultural Machinery,2009,40(1):26-30.
[5]任欣,王文瑞,顾亮.叶片减振器比例控制阀动态特性仿真与实验[J].液压与气动,2015,(9):73-76.REN Xin,WANG Wenrui,GU Liang.Simulation and Experiment Study of Vane Damp’s Proportional Control Valve[J].Chinese Hydraulics&Pneumatics,2015,(9):73-76.
[6]王文瑞,顾亮,王雪红.叶片式减振器阻尼特性分析与实验研究[J].液压与气动,2008,(5):10-13.WANG Wenrui,GU Liang,WANG Xuehong.Analysis of Damping Characteristics and Test Study About Vane Damp[J].Chinese Hydraulics&Pneumatics,2008,(5):10-13.
[7]蔡兆忠,李慧梅,安钢,等.履带车辆悬挂系统振动仿真与减振器能耗分析[J].装甲兵工程学院学报,2012,26(3):39-41.CAI Zhaozhong,LI Huimei,AN Gang,et al.Vibration Simulation of Tracked Vehicle Suspension System and Damper Consumption Analysis[J].Journal of Academy of Armored Force Engineering,2012,26(3):39-41.
[8]袁传义,何庆,张焱.一种可调阻尼减振器的设计与试验研究[J].液压与气动,2012,(12):107-111.YUAN Chuanyi,HE Yi,ZHANG Yan.Design and Experiment Study of an Adjustable Damping Shock Absorber[J].Chinese Hydraulics&Pneumatics,2012,(12):107-111.
[9]张进秋,彭志召,张建,等.叶片式磁流变液减振器结构设计与优化[J].振动.测试与诊断,2013,(1):132-137.ZHANG Jinqiu,PENG Zhizhao,ZHANG Jian,et al.Design and Optimization of Vane Magneto-rheological Fluid Damper[J].Journal of Vibration,Measurement&Diagnosis,2013,(1):132-137.
[10]贺李平,顾亮,龙凯,等.基于流—固耦合的汽车减振器动态特性仿真分析[J].机械工程学报,2013,48(13):96-101.HE Liping,GU Liang,LONG Kai,et al.Simulation Analysis of Dynamic Characteristics of Automobile Shock Absorbers Based on Fluid-structure Interaction[J].Journal of Mechanical Engineering,2013,48(13):96-101.