基于ADAMS的联合收割机行驶平顺性仿真  

Riding Comfort Simulation of Combine Based on ADAMS

作　　者：谢斌[1] 鲁倩倩 毛恩荣[1] 李皓[1] 李福强[1] 

机构地区：[1]中国农业大学工学院,北京100083

出　　处：《农机化研究》2014年第11期38-41,50,共5页Journal of Agricultural Mechanization Research

基　　金："十二五"国家科技支撑计划项目(2011BAD20B01)

摘　　要：在农机专业底盘快速设计中,需对农机行驶平顺性进行性能分析。为此,采用五轮仪法,实测实际耕作地的路面不平度,通过快速Fourier变换,获得功率谱密度函数,构建面向农机作业的三维路面模型。将该路面模型导入ADAMS/view中,建立车-路相互作用模型,利用加权加速度均方根法,对某国产联合收割样机行驶平顺性进行评价。仿真结果为:最大加权加速度为2.11 m/s2,共振频率为2.93Hz。In the agricultural machinery professional chassis rapid design,it＇s necessary to analyze the performance about the riding comfort.First,road surface roughness of the farming plots was measured using five-wheel instrument.The data of the testing sample was transformed to power spectrum density function by fast Fourier transform.Using the results,a three-dimensional random road model was established based on MATLAB with the function.Vehicle-road interaction model was created when the road model was imported to ADAMS/view.The riding comfort of the grain combine harvester was evaluated with weighted acceleration RMS method.Results show that,the maximum weighted acceleration is 2.11m/s2,the resonance frequency is 2.93Hz.

关 键 词：联合收割机 行驶平顺性 路面不平度 功率谱密度 

分 类 号：S225.31[农业科学—农业机械化工程] S126[农业科学—农业工程]