CAJ | 학술논문

加载系统是工程机械多功能试验台作为负荷车对工程车辆牵引性能进行测试的核心系统.针对采用静液二次调节技术加载的工程机械多功能试验台,分别建立了电液伺服阀、变量油缸、二次元件的数学模型,在此基础上建立了加载系统的简化数学模型.利用PID控制器进行参数调整,对阶跃载荷和正弦波载荷两种加载模式进行仿真分析,研究了静液二次调节系统作为试验台加载系统的可靠性及其动态特性,结果证明静液二次调节加载系统运用到试验台上是可行的,能够满足试验台的加载要求.
가재계통시공정궤계다공능시험태작위부하차대공정차량견인성능진행측시적핵심계통.침대채용정액이차조절기술가재적공정궤계다공능시험태,분별건립료전액사복벌、변량유항、이차원건적수학모형,재차기출상건립료가재계통적간화수학모형.이용PID공제기진행삼수조정,대계약재하화정현파재하량충가재모식진행방진분석,연구료정액이차조절계통작위시험태가재계통적가고성급기동태특성,결과증명정액이차조절가재계통운용도시험태상시가행적,능구만족시험태적가재요구.
Loading system is the core system of multi-functional engineering machinery as load vehicle to teat traction performance of construction vehicle.For secondary regulation technology in loading system of multifunctional test platform,the mathematical models of electro-hydraulic servo valve,variable fuel tanks,secondary component were established by modeling method for the secondary regulated loading system.By using PID controller to adjust the parameters,mainly from step loading model and sine wave loading model to analysis the simulation.Dynamic characteristics and reliability of the secondary regulation technology system for loading control system of test-platform were studied.The results show that the secondary regulation technology system used in engineering machinery multifunction teat-platform is feasible,and can meet the performance requirements of the loading system.