一种换挡缓冲阀动态特性仿真分析和试验研究
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摘要
为了减少设备损坏及提高驾驶或乘坐车辆的舒适性,需要对换挡液压系统中缓冲阀特性进行研究。文章对一种换挡缓冲阀结构和工作原理进行了详细分析,建立了换挡缓冲阀工作过程中的数学模型,通过AMESim液压系统分析软件建立了换挡缓冲阀仿真模型,对换挡缓冲阀进行了动态仿真,分析了换挡缓冲阀主要结构参数对换挡缓冲阀缓冲特性的影响,最后,在整机台架试验上,分析了换挡缓冲阀主要结构参数中不同背压、不同节流孔大小对换挡缓冲阀缓冲特性的影响,通过台架试验验证了理论设计和仿真分析可行性和正确性。研究成果可为换挡缓冲阀结构优化设计提供依据以及相关液压领域研究提供理论与实践帮助。
In order to reduce equipment damage and improve the comfort of driving or riding vehicles, it is necessary to study the characteristics of buffer valve in shifting hydraulic system. In this paper, the structure and working principle of a shift buffer valve were analyzed in detail, and the mathematical model of the shift buffer valve was established. The simulation model of shifting buffer valve was established by AEMSim hydraulic system analysis software, and the dynamic simulation of shift buffer valve was carried out. The influence of the main structural parameters of the shifting buffer valve on the cushioning characteristics of the shifting buffer valve was analyzed in this experiment. Finally, the influence of backpressure and orifice size on Cushioning Characteristics of shifting buffer valve was analyzed in the whole bench test. The feasibility and correctness of theoretical design and simulation analysis were verified by the bench test. The research results can provide the basis for the optimization design of the shifting buffer valve structure and provide theoretical and practical assistance for the research in the relevant hydraulic field.
In order to reduce equipment damage and improve the comfort of driving or riding vehicles, it is necessary to study the characteristics of buffer valve in shifting hydraulic system. In this paper, the structure and working principle of a shift buffer valve were analyzed in detail, and the mathematical model of the shift buffer valve was established. The simulation model of shifting buffer valve was established by AEMSim hydraulic system analysis software, and the dynamic simulation of shift buffer valve was carried out. The influence of the main structural parameters of the shifting buffer valve on the cushioning characteristics of the shifting buffer valve was analyzed in this experiment. Finally, the influence of backpressure and orifice size on Cushioning Characteristics of shifting buffer valve was analyzed in the whole bench test. The feasibility and correctness of theoretical design and simulation analysis were verified by the bench test. The research results can provide the basis for the optimization design of the shifting buffer valve structure and provide theoretical and practical assistance for the research in the relevant hydraulic field.
引文
[1]李东兵.工程车辆自动变速器换挡品质控制研究[D].长春:吉林大学,2007.
[2]宋金磊.基于机液缓冲阀的装载机变速箱电液换挡系统的研究[D].杭州:浙江大学,2018.
[3]马彪,孙宪林,陈建文,等.换挡离合器液压缓冲阀设计与试验分析[J].机械设计,1997,(9).
[4]张琪.基于AMESim的装载机变速箱换挡性能研究[D].长春:吉林大学,2012.
[5]郝驰宇,冯广斌,孙华刚,等.基于RecurDyn和AMESim的换挡离合器联合仿真及工作特性分析[J].机械传动,2018,42(9):140-144.
[6]顾宏弢,杨波,潘嘉明.节流孔类型对换挡缓冲时间的影响[J].机床与液压,2009,37(5):90-91,187.
[7]陈军奥,彭利坤,杨佳迪,等.基于控制油液动量变化量缓冲阀阀芯结构设计及仿真[J].液压与气动,2015,(11):99-103.
[8]张冬林,袁晟毅,王宇翔,等.系统背压对稳压器安全阀性能的影响[J].核动力工程,2017,38(S2):172-174.
[9]冯广斌,侯玉杰,孙华刚.装甲车传动装置换挡缓冲调压仿真研究[J].计算机仿真,2018,35(11):7-11.
[10]毛明,周广明,邹天刚.液力机械综合传动装置设计理论与方法[M].北京:兵器工业出版社,2015.
[2]宋金磊.基于机液缓冲阀的装载机变速箱电液换挡系统的研究[D].杭州:浙江大学,2018.
[3]马彪,孙宪林,陈建文,等.换挡离合器液压缓冲阀设计与试验分析[J].机械设计,1997,(9).
[4]张琪.基于AMESim的装载机变速箱换挡性能研究[D].长春:吉林大学,2012.
[5]郝驰宇,冯广斌,孙华刚,等.基于RecurDyn和AMESim的换挡离合器联合仿真及工作特性分析[J].机械传动,2018,42(9):140-144.
[6]顾宏弢,杨波,潘嘉明.节流孔类型对换挡缓冲时间的影响[J].机床与液压,2009,37(5):90-91,187.
[7]陈军奥,彭利坤,杨佳迪,等.基于控制油液动量变化量缓冲阀阀芯结构设计及仿真[J].液压与气动,2015,(11):99-103.
[8]张冬林,袁晟毅,王宇翔,等.系统背压对稳压器安全阀性能的影响[J].核动力工程,2017,38(S2):172-174.
[9]冯广斌,侯玉杰,孙华刚.装甲车传动装置换挡缓冲调压仿真研究[J].计算机仿真,2018,35(11):7-11.
[10]毛明,周广明,邹天刚.液力机械综合传动装置设计理论与方法[M].北京:兵器工业出版社,2015.