CAJ | 학술논문

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。
재농궤전업저반쾌속설계중，수대농궤행사평순성진행성능분석。위차，채용오륜의법，실측실제경작지적로면불평도，통과쾌속Fourier 변환，획득공솔보밀도함수，구건면향농궤작업적삼유로면모형。장해로면모형도입ADAMS/view 중，건립차-로상호작용모형，이용가권가속도균방근법，대모국산연합수할양궤행사평순성진행평개。방진결과위：최대가권가속도위2．11 m/s2，공진빈솔위2．93Hz。
In the agricultural machinery professional chassis rapid design , it’ s necessary to analyze the performance a-bout 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 .11 m/s2 , the resonance frequency is 2.93Hz.