内燃机气缸压力振动识别研究

An Investigation of Identifying Cylinder Pressure of I. C. Engine by Vibrtation Measurement

本文应用数字信号处理技术研究了内燃机气缸压力对缸盖表面的激励作用，提出了借助于缸盖系统传递函数分离表面振动信号。识别气缸压力成份并复现示功图的方法。

In this paper, the relationship between vibration response of cylinder head and the excitation of cylinder pressure is analysed. A method is described by which the response signals of cylinder head are separated. According to the dynamical transfer function of the cylinder head the cylinder pressure is identified from vibration signals of the cylinder head by means of the digital signal processing technique.