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5. 基于不同插值法的装载机自主铲装轨迹的寻优

基于不同插值法的装载机自主铲装轨迹的寻优

来源 :矿山机械 | 被引量 : 0次 | 上传用户：chitianshyitt

【摘 要】

：

单位时间铲装量是表征装载机铲装性能的重要指标.通过装载机以不同铲掘深度的轨迹对细沙物料进行作业,获得单次作业铲斗内物料的质量及单次作业时间等基础数据;采用三次样条插值法、线性插值法、最邻近插值法和分段三次Hermit插值法,对不同铲掘深度的单位时间铲掘量进行预测,并采用交叉验证的办法,依据各指标对插值精度进行检验.结果显示,相比于其他插值法,分段三次Hermit插值法在2种工况下各指标的数值均较低,预测精度更高.最后将全部数据进行分段三次Hermit插值,通过与人工铲装结果对比,确定了装载机自主铲装高满斗

【作 者】

：

淮志鹏 谌炎辉 洪钱港 

【机 构】

：

广西科技大学机械与汽车工程学院 广西柳州 545616

【出 处】

：

矿山机械

【发表日期】

：

2022年2期

【关键词】

：

单位时间铲装量 插值方法 预测分析 交叉验证 

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论文部分内容阅读

单位时间铲装量是表征装载机铲装性能的重要指标.通过装载机以不同铲掘深度的轨迹对细沙物料进行作业,获得单次作业铲斗内物料的质量及单次作业时间等基础数据;采用三次样条插值法、线性插值法、最邻近插值法和分段三次Hermit插值法,对不同铲掘深度的单位时间铲掘量进行预测,并采用交叉验证的办法,依据各指标对插值精度进行检验.结果显示,相比于其他插值法,分段三次Hermit插值法在2种工况下各指标的数值均较低,预测精度更高.最后将全部数据进行分段三次Hermit插值,通过与人工铲装结果对比,确定了装载机自主铲装高满斗率的最优轨迹.该研究为装载机自主铲装轨迹的寻优提供了参考.

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