活塞阀传动机构动力学建模与参数影响研究  

Research on Dynamic Modeling and Parameter Influence of Piston Valve Transmission Mechanism

作　　者：童成彪 宁鑫飞 严彬 TONG Cheng-biao;NING Xin-fei;YAN Bin(Hu’nan Agricultural University College of Mechanical and Electrical Engineering,Hu’nan Changsha 410128,China;Key Laboratory of Intelligent Agricultural Machinery Equipment of Hunan Province,Hu’nan Changsha 410128,China)

机构地区：[1]湖南农业大学机电工程学院,湖南长沙410128 [2]智能农机装备湖南省重点实验室,湖南长沙410128

出　　处：《机械设计与制造》2024年第6期106-110,共5页Machinery Design & Manufacture

基　　金：湖南省自然科学基金(2020JJ4045);长沙市科技计划(kq1907044);省科技托举人才计划(2020TJ-Q10)。

摘　　要：活塞阀在长距离输水、供水排水、电力、灌溉等领域有广泛的应用,其传动机构对调节性能有重要影响。为评估设计参数对动力学性能的影响,文章通过矢量合成法求得曲柄连杆机构中滑块的速度,并结合求导法和达朗伯原理建立了曲柄连杆机构的动力学模型;对各个位置的动力学参数进行了矩阵求解,通过虚拟样机模型对曲柄连杆机构的动力学模型进行了仿真验证;并对曲柄连杆机构进行了参数影响研究,得到了各参数对传动机构性能的影响规律和设计变量的取值规则。结果表明这里建立的理论模型精度较高,对活塞阀传动机构的设计具有指导意义,也为进一步优化研究建立了理论基础。Plunger valves have a wide range of applications in long-distance water delivery,water supply and drainage,electrici-ty,irrigation and other fields,and its transmission mechanism has an important impact on regulation performance.In order to evaluate the influence of the design parameters on the dynamic performance,this paper uses the vector synthesis method to obtain the speed of the slider in the crank-connecting rod mechanism,and combines the derivation method and the D′Alembert principle to establish the dynamic model of the crank-connecting rod mechanism.The dynamic parameters of each position were solved by matrix,and the dynamic model of the crank-connecting rod mechanism was simulated and verified through the virtual prototype model;the influence of the parameters of the crank-connecting rod mechanism was studied,and the effect discipline of each pa-rameter on the performance of the transmission mechanism was obtained,The set rule of the design variables value was also ob-tained.The results show that the higher accuracy of the theoretical model established in this paper has guiding significance for the design of the piston valve transmission mechanism,and establishes a theoretical basis for further optimization research.

关 键 词：曲柄连杆机构 达朗伯原理 虚拟样机 响应面 

分 类 号：TH16[机械工程—机械制造及自动化] TK413.3[动力工程及工程热物理—动力机械及工程]