基于AMESim捣固装置节能液压系统仿真

Simulation on energy-saving hydraulic system for tamping device based on AMESim

针对捣固车捣固作业过程中阀控节流系统在频繁周期动作时产生大量能量损失的问题,提出了一种节能液压系统方案。对捣固车捣固装置升降油缸高频往复运动工况进行分析,研究了其能量回收潜力;运用AMEsim软件建立原系统和节能液压系统仿真模型;比较了两种方案下的油缸位移和流量。研究结果表明:在此节能液压系统中,蓄能器的容积对系统节能效果有较为明显的影响;当蓄能器预充气压力为3 MPa、容积为3.5 L时,系统有最佳的节能效果,此时节能液压系统的耗能量相对于原方案降低了约46%。通过对捣固装置节能液压系统的仿真研究,验证了该方案的可行性,为设计捣固装置液压系统提供了理论支持。

During the tamping operation of the tamping machine, the valve controlled throttle system produces a large amount of energy loss during frequent periodic operation.In order to solve this problem, a kind of energy-saving hydraulic system scheme was proposed.The high-frequency reciprocating motion condition of the lifting cylinder in the tamping device of the tamping machine was analyzed, and the energy recovery potential was studied.The simulation models of the original system and the energy-saving hydraulic system were established by using AMESim software.The displacement and flow rate of the cylinder under the two schemes were compared.The research results show that in the energy-saving hydraulic system, the volume of the accumulator has a significant effect on the energy-saving effect of the system, when the accumulator precharging pressure is 3 MPa and the volume is 3.5 L,the system has the best energy-saving effect, and the energy consumption of the energy-saving hydraulic system is reduced by about 46 % compared with the original scheme.The feasibility of the scheme was verified by the simulation study of the energy-saving hydraulic system of the tamping device, which provides theoretical support for the design of the hydraulic system of the tamping device.