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变冲击系数的几何参数化变矩器特性模型(Parametric Torque Converter Dynamic Model with Variable Shock Loss Coefficient)
液力变矩器 键合图 无因次特性
2009/8/11
为解决变矩器特性模型中因冲击损失造成理论预测误差偏大的问题,建立了变冲击损失系数的几何参数化变矩器特性模型。模型以键合图作为系统动力学工具,采用模块化建模方法,分析了各工作轮的工作特性与能量损失,实现了通过几何参数进行工作特性的预测,采用变冲击损失系数的方法来增加模型精度。与样机性能实验结果对比表明,在转速比0至1全区段内,变冲击损失系数方法得出的变矩比和效率百分比误差的波动变化更小,这说明在工况...
Comparison of Different Irrigation Methods Based on the Parametric Evaluation Approach
Irrigation Parametric Evaluation Soil Characteristics Geographic Information System (GIS)
2009/1/12
The main objective of this research is to compare two different irrigation methods according to parametric evaluation system in the Field Plants Central Research Institute-Ikizce Research Farm's soils...