A knowledge-based fuzzy logic model was developed on experimental data and used to predict the draft,side and vertical forces and soil disturbance area by disc tillage tool operation.The laboratory research work was c...A knowledge-based fuzzy logic model was developed on experimental data and used to predict the draft,side and vertical forces and soil disturbance area by disc tillage tool operation.The laboratory research work was conducted to evaluate the performance of the disc tool at three working speeds(1.25 m/s,1.98 m/s and 2.47 m/s,respectively)and depths(0-5 cm,5-10 cm and 10-15 cm,respectively)on paddy soil under soil-bin environment.Further,draft(Fx),side(Fz)and vertical(Fy)forces of disc and soil disturbance area were assessed and predicted towards working speeds and depths.A fuzzy prediction model with two input variables(speed and depth)and four output variables was developed and the Mamdani inference approach was used.Draft,side and vertical forces of disc and soil disturbance area were positively responded 0.97,0.95 and 0.84 and 0.99,respectively.The prediction results showed a close relationship between measured and predicted data.Similarly,the measured and predicted results revealed that the draft,side,vertical forces,and soil disturbance area slightly increased,while increasing the speed and depth of the disc tool.Furthermore,disc forces and soil disturbed area were highly significant(p<0.05)for higher speed towards depth.It was concluded that the fuzzy model may be introduced for predicting the disc forces and soil disturbance area during the disc tillage tool operation with high accuracy.展开更多
针对刀具的磨损和加工效率的问题,通过使用硬质合金刀具对整体叶盘(TC4)切削加工获取参数,根据试验数据建立数学模型,运用遗传算法对目标函数进行优化来解决。以Visual Studio 2010为开发工具,MATLAB为算法工具,SQL Server 2008为数据...针对刀具的磨损和加工效率的问题,通过使用硬质合金刀具对整体叶盘(TC4)切削加工获取参数,根据试验数据建立数学模型,运用遗传算法对目标函数进行优化来解决。以Visual Studio 2010为开发工具,MATLAB为算法工具,SQL Server 2008为数据库系统管理软件,建立了铣削参数优化模块,提高了加工效率,降低了刀具磨损。展开更多
基金financially supported by the National Key Research of Development Program of China(Grant No.2016YFD0702004)the National Natural Science Foundation of China(Grant No.51605196)+3 种基金the Jiangsu Key Research and Development Program of China(Grant No.BE2016356)the Natural Science Foundation of Jiangsu Province of China(Grant No.BK20160532)the National Science Foundation for Post-doctoral Scientists of China(Grant No.2016M591788)Natural Science Foundation of the Higher Education Institutions of Jiangsu Province,China(Grant No.17KJB416003).
文摘A knowledge-based fuzzy logic model was developed on experimental data and used to predict the draft,side and vertical forces and soil disturbance area by disc tillage tool operation.The laboratory research work was conducted to evaluate the performance of the disc tool at three working speeds(1.25 m/s,1.98 m/s and 2.47 m/s,respectively)and depths(0-5 cm,5-10 cm and 10-15 cm,respectively)on paddy soil under soil-bin environment.Further,draft(Fx),side(Fz)and vertical(Fy)forces of disc and soil disturbance area were assessed and predicted towards working speeds and depths.A fuzzy prediction model with two input variables(speed and depth)and four output variables was developed and the Mamdani inference approach was used.Draft,side and vertical forces of disc and soil disturbance area were positively responded 0.97,0.95 and 0.84 and 0.99,respectively.The prediction results showed a close relationship between measured and predicted data.Similarly,the measured and predicted results revealed that the draft,side,vertical forces,and soil disturbance area slightly increased,while increasing the speed and depth of the disc tool.Furthermore,disc forces and soil disturbed area were highly significant(p<0.05)for higher speed towards depth.It was concluded that the fuzzy model may be introduced for predicting the disc forces and soil disturbance area during the disc tillage tool operation with high accuracy.
文摘针对刀具的磨损和加工效率的问题,通过使用硬质合金刀具对整体叶盘(TC4)切削加工获取参数,根据试验数据建立数学模型,运用遗传算法对目标函数进行优化来解决。以Visual Studio 2010为开发工具,MATLAB为算法工具,SQL Server 2008为数据库系统管理软件,建立了铣削参数优化模块,提高了加工效率,降低了刀具磨损。
