CAJ | 학술논문

通过理论分析建立了加载系统二次元件控制系统的数学模型,并利用MATLAB和Simulink软件进行了动态仿真分析。仿真结果表明：系统调整时间为0.068 s,上升时间为0.026 s；系统跟踪频率为6 Hz的输入信号的精度较高。实验结果表明：加载转矩360 N·m和222 N·m的阶跃载荷时,系统响应的上升时间相等(约为0.18 s)、调整时间基本一致(约为0.4 s)；加载频率为1~6 Hz 的正弦载荷时,均值误差不大于1.24%,幅值误差在加载3 Hz正弦载荷时超出了6%,其他频率下幅值误差均小于6%；当加载频率较低的实际冲击载荷时系统的跟踪性较好,响应较快。结果表明,加载系统的性能稳定,具有良好的动态性能与控制特性,能够满足液压底盘动态性能研究的需要。
통과이론분석건립료가재계통이차원건공제계통적수학모형,병이용MATLAB화Simulink연건진행료동태방진분석。방진결과표명：계통조정시간위0.068 s,상승시간위0.026 s；계통근종빈솔위6 Hz적수입신호적정도교고。실험결과표명：가재전구360 N·m화222 N·m적계약재하시,계통향응적상승시간상등(약위0.18 s)、조정시간기본일치(약위0.4 s)；가재빈솔위1~6 Hz 적정현재하시,균치오차불대우1.24%,폭치오차재가재3 Hz정현재하시초출료6%,기타빈솔하폭치오차균소우6%；당가재빈솔교저적실제충격재하시계통적근종성교호,향응교쾌。결과표명,가재계통적성능은정,구유량호적동태성능여공제특성,능구만족액압저반동태성능연구적수요。
A mathematical model of the loading system secondary element control system was es-tablished through theoretical analysis,and the dynamic simulation analysis was conducted by using MATLAB and SIMULINK software.The simulation result shows that:the adj usting time is as 0.068 s,rise time is as 0.026 s,and tracking frequency is as 6 Hz the input signal has high response accuracy.The experimental results show that:when the step load with load torque 360 N·m and 222 N·m,the rise time of system response is equal (about 0.1 8 s ),adj usting time is equal (about 0.4 s).When sinusoidal load with frequency of 1~6 Hz is loaded,the maximum error of average is less than 1.24%,the amplitude error is excess 6% when 3 Hz sine wave load is loaded,and is less than 6% under other frequencies.When the actual impact load with low frequency is loaded,better tracking performance and fast response are obtained.It shows that,the loading system performance is stability,and has good dynamic performance and control characteristics,can meet the dynamic per-formance of hydraulic chassis needs.