基于缸内压力升高率对发动机爆震的研究

The Research of Knocking Based on the Cylinder Pressure Rise

文章分析了氢发动机爆震时火焰传播变化机理,研究了净压力升高率和爆震的关系,建立了一种基于净压力升高率判定爆震的有效方法,即根据净压力升高率峰值的个数进行判定,可为异常燃烧的诊断提供参考。

Having analyzed the change mechanism of flame propagation when knocking, investigate the relation of net pressure rise and knocking, establish a method that can judge knocking availability, provide reference to diagnose abnormal combustion. The method based on the number of wave crest in pressure rise curve, when the net pressure rise appear two or more wave crest, produce knocking.