二次调节技术在试验台加载系统中的应用研究

中国机械工程 ›› 2014, Vol. 25 ›› Issue (11): 1453-1459.

二次调节技术在试验台加载系统中的应用研究

马登成1;杨士敏1;马登慧2;蒋小明2

1.长安大学道路施工技术与装备教育部重点实验室,西安,710064
2.中国一拖（洛阳）动力机械有限公司,洛阳,471004

出版日期:2014-06-10 发布日期:2014-06-23
基金资助:
中央高校基本科研业务费专项资金资助项目（CHD2010ZY010）；长安大学高速公路施工机械陕西省重点实验室开放基金资助项目（2013G1502059）

Study on Applications of Secondary Regulation Technology in Test Bench Loading System

Ma Dengcheng1;Yang Shimin1;Ma Denghui2;Jiang Xiaoming2

1.Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education, Chang'an University, Xi'an, 710064
2.China Yituo Group Company Limited YTO(Luoyang) Engine Machinery Co.,Ltd.,Luoyang,Henan,471004

Online:2014-06-10 Published:2014-06-23
Supported by:
Fundamental Research Funds for the Central Universities( No. CHD2010ZY010)

摘要/Abstract

摘要：

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0.068s,上升时间为0.026s;系统跟踪频率为6Hz的输入信号的精度较高。实验结果表明：加载转矩360N·m和222N·m的阶跃载荷时,系统响应的上升时间相等（约为0.18s）、调整时间基本一致（约为0.4s）;加载频率为1~6Hz的正弦载荷时,均值误差不大于1.24%,幅值误差在加载3Hz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。

关键词: 液压底盘;加载系统;二次调节, 仿真分析;实验研究

Abstract:

A mathematical model of the loading system secondary element control system was established through theoretical analysis, and the dynamic simulation analysis was conducted by using MATLAB and SIMULINK software. The simulation result shows that: the adjusting time is as 0.068s, rise time is as 0.026s, and tracking frequency is as 6Hz the input signal has high response accuracy. The experimental results show that: when the step load with load torque 360N·m and 222N·m, the rise time of system response is equal (about 0.18s), adjusting time is equal (about 0.4s). When sinusoidal load with frequency of 1~6Hz is loaded, the maximum error of average is less than 1.24%, the amplitude error is excess 6% when 3Hz 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 performance of hydraulic chassis needs.

Key words: hydraulic chassis, loading system, secondary regulation, simulation analysis, experimental study

中图分类号:

TH12

马登成, 杨士敏, 马登慧, 蒋小明. 二次调节技术在试验台加载系统中的应用研究[J]. 中国机械工程, 2014, 25(11): 1453-1459.

Ma Dengcheng, Yang Shimin, Ma Denghui, Jiang Xiaoming. Study on Applications of Secondary Regulation Technology in Test Bench Loading System[J]. China Mechanical Engineering, 2014, 25(11): 1453-1459.

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