CAJ | 학술논문

　　为了考察种绳直播机作业过程中所选取的工作参数对水稻种绳覆土厚度的影响，进行了水稻种绳覆土厚度测试试验。试验采用三因素二次回归组合正交试验设计，分析了种绳直播机行驶速度、开沟器开沟深度、覆土器挡板角度对种绳覆土厚度的影响关系，确定各因素之间的回归数学模型为 y⌒s ＝27．65＋0．5x1＋1．06x2-0．64x3＋0．48x′21-0．49x′23。试验结果表明，利用贡献率法确定因素的主次关系为开沟深度 x2＞覆土器挡板角度x3＞行驶速度 x1；对回归方程进行优化求解，当覆土厚度目标值为27．34mm 时，种绳直播机行驶速度为0.17m/s、开沟器开沟深度为36．34mm、覆土器挡板角度为72．21°。
　　위료고찰충승직파궤작업과정중소선취적공작삼수대수도충승복토후도적영향，진행료수도충승복토후도측시시험。시험채용삼인소이차회귀조합정교시험설계，분석료충승직파궤행사속도、개구기개구심도、복토기당판각도대충승복토후도적영향관계，학정각인소지간적회귀수학모형위 y⌒s ＝27．65＋0．5x1＋1．06x2-0．64x3＋0．48x′21-0．49x′23。시험결과표명，이용공헌솔법학정인소적주차관계위개구심도 x2＞복토기당판각도x3＞행사속도 x1；대회귀방정진행우화구해，당복토후도목표치위27．34mm 시，충승직파궤행사속도위0.17m/s、개구기개구심도위36．34mm、복토기당판각도위72．21°。
The test of rice rope soil covering thickness was conducted to investigate the influence of the working parameter of rope direct seeding machine.The effects of vehicle speed, furrow depth and angle of coverer baffle plate on soil cover-ing thickness were investigated by three-factor quadratic regression orthogonal composite design .Mathematical model was ys =27.65 +0.5x1 +1.06x2 -0.64x3 +0.48x′21 -0.49x′23 .The results showed that the order of factor was clarified as furrow depth x2>angle of coverer baffle plate x3>vehicle speed x1;The optimization solution to the mathematical mod-el, when the target value of soil covering thickness is 27.34mm,the vehicle speed is 0.17m/s,furrow depth is 36.34mm and the angle of coverer baffle plate is 72.21°.