气吸式免耕播种机种箱振动特性的研究——基于MatLab  

Studies on Air- suction Mat Lab Tillage Planter Seed Boxes——Based on the Vibration Characteristics

作　　者：张旭[1] 刘飞[1] 董帅[1] 刘月琴[1] 赵满全[1] 

机构地区：[1]内蒙古农业大学机电工程学院,呼和浩特010018

出　　处：《农机化研究》2015年第8期40-43,共4页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(51365034);中国博士后科学基金项目(2014M552532XB)

摘　　要：利用振动信号采集系统PULSE软件,将加速度传感器安装于种箱附近,将振动信号通过六通道采集卡采集,通过无线网桥发射-接收信号,将信号传送到计算机;利用Mat Lab分析软件,将采集到的信号进行分析处理,得到每个通道的采集振幅图,选取振幅图中若干个频率-振幅坐标值进行Mat Lab数据拟合。结果表明:气吸式免耕播种机主要为低频振动,随着作业速度不同,频谱图的峰值就不同,速度越大,峰值越高且出现峰值的点越多;通过数据拟合可知,拟合直线越顺滑,表明此处振动对种箱排种效果越好。In this paper, using the vibration signal acquisition system PULSE software, the acceleration sensor mounted near the kinds of boxes, the vibration signal acquisition card through a six-channel,and finally emitted by wireless bridge-the received signal, transmits a signal to the computer.Using MatLab software,the collected signal analysis and pro-cessing, collection amplitude maps obtained for each channel, select the number of frequency amplitude graph -ampli-tude coordinate values MatLab data fitting.The results show that by spectrum analysis shows that the main air-suction till-age seeder for low frequency vibration, with different operating speeds, the peak spectrum is different, the greater the speed, the higher the peak and a peak of more points;through data fitting shows that fit the smooth lines, show me where the vibration of the kinds of seed, the better.

关 键 词：气吸式免耕播种机 振动信号 PUMatLab 频谱图 曲线拟合 

分 类 号：S223.25[农业科学—农业机械化工程]