可视化编程技术在发动机外特性曲线绘制中的应用

通过对汽车发动机外特性的理论分析,在处理汽车发动机外特性曲线时,建立了一种适合处理发动机外特性曲线的三次样条函数拟合的数学模型,在C Builder可视化开发平台上,编制了汽车发动机外特性曲线绘制程序.利用三次样条函数插值法对实验数据进行拟合,实现了发动机外特性曲线绘制的自动化.     

可视化编程技术在发动机外特性曲线绘制中的应用

通过对汽车发动机外特性的理论分析，在处理汽车发动机外特性曲线时，建立了一种适舍处理发动机外特性曲线的三次样奈函数拟舍的数学模型，在C＋＋Builder可视化开发平台上，编制了汽车发动机外特性曲线绘制程序。利用三次样条函数插值法对实验数据进行拟舍，实现了发动机外特性曲线绘制的自动化。     

农用车组合开关测试设备及评价方法

The farm vehicle combined switch(VCS) being multifunctional and irregular, the evaluations for them have been difficult problems, which has gotten VCS manufacturers and their users into troubles.So some of their users have still been evaluated VCS with the hand touch-feeling method.In order to make the evaluation more scientific, an integrated test facility, which have three kinds of bionic robot hands(twist, push and draw-out type), and its evaluation mothed were developed for VCS.Meanwhile, some tests, which consisted of subjective tests(experts hand touch-feeling) and objective machine tests, were made to examine this technique.The aim of the tests was to grade the same kind of VCS products among three different manufacturers.By comprehensive analysis, a conclusion can be obtained that there is a significant correlation between the subjective expert method and objective machine one in the VCS evaluation.With regard to machine one, the contributions of the parameters such as the shifting force, inflection force and effective shifting time to the evaluation of VCS are major.This machine evaluation technique can be used to describe and grade the quality of VCS products, and ultimately examine their material, process and assembly, which can be a useful method for authorities who make decisions during production, sourcing/buying as well as design of VCS.