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滅茬機工作參數(shù)的多目標模糊優(yōu)化
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    摘要:

    在田間試驗的基礎(chǔ)上,通過理論分析、均勻設(shè)計及數(shù)據(jù)擬水平處理的方法,建立了以滅茬機生產(chǎn)效率高和功率消耗小為總體模糊目標,以機組前進速度、刀軸轉(zhuǎn)速和作業(yè)寬度為工作參數(shù)的多目標模糊優(yōu)化數(shù)學模型并分析了滅茬機各主要工作參數(shù)對總體目標的影響規(guī)律。當工作寬度為定值時,總體目標隨前進速度的增大而快速增大,隨刀軸轉(zhuǎn)速的增加而增大;當?shù)遁S轉(zhuǎn)數(shù)定值時,總體目標水平隨前進速度的增大而快速增大,隨工作寬度的增加而緩慢增大;當前進速度定值時,總體目標水平隨刀軸轉(zhuǎn)速和工作寬度的增加而緩慢減小。在滿足約束條件的可行域內(nèi)進行尋優(yōu),優(yōu)化出滅茬機的最佳工作參數(shù)為作業(yè)寬度1.42m,刀軸轉(zhuǎn)速406r/

    Abstract:

    min,前進速度1.5m/s。Based on the field experiment, and by means of theoretical analysis, uniform design and the data quasi-level processing method, the multi-objects fuzzy optimization mathematical model, which uses the stubble cleaner’s high production efficiency and low power consumption as the goal, uses the machine advance speed, cutter rotating speed and machine width as the working parameters, are developed. The regulation about how the working parameters of stubble cleaner affect the goal is put forward. When the machine width is a fixed value, the goal level will be increased fast with the increasing of the machine advance speed and increased with the increasing of the cutter rotating speed; when the cutter rotating speed is a fixed value, the goal level will be increased fast with the increasing of the advance speed and increased slowly with the spreading of the machine width; when the advance speed is a fixed value, the goal level will be decreased slowly with the spreading of the machine width and the increasing of the cutter rotating speed. The optimization is conducted in the feasible area which is limited by the constraint conditions. The best working parameters of the machine width is 1.42m, the cutter rotating speed is 406r/min and the advance speed is 1.5m/s.

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魏天路,周海波,楊海,王俊發(fā).滅茬機工作參數(shù)的多目標模糊優(yōu)化[J].農(nóng)業(yè)機械學報,2008,39(6):73-76.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(6):73-76.

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