振动压路机振动频率控制系统研究

摘要

为确保振动压路机的振动频率能实时地根据被压实材料进行控制,分析了振动压路机振动频率的调节原理,给出了振动频率调节的液压系统,建立了系统的数学模型,研究了振动频率控制原理,提出了控制系统PID参数整定与优化的遗传算法,开发了振动压路机振动频率控制系统,并进行了现场试验研究。结果表明：依照本文理论研究所开发的控制系统响应快,系统稳定,能够针对不同被压实土壤设定不同的最佳振动频率。%In this paper,the vibration frequency adjustment principle of vibration rollers was analyzed,the hydraulic system was designed and its mathematical model was presented for adjusting vibration frequency.In order to ensure that the vibration frequency of vibration rollers can be real-time controlled according to the compaction materials,the control principle of vibration frequency and the genetic algorithm of PID parameters setting and optimization for control system were studied based the model.Then the vibration frequency control system of vibratory rollers was developed and its field test was accomplished.The results show that the response of vibration frequency control system is very quick and its performances are stable,in which the best vibration frequency can be set in control system according to different compacted soils.