Application of the AGST Method to the Vibration Analysis of the Diesel Engine Cylinder Head Cover
The vibration signal of diesel engine is typically non-stationary and time-varying signal, with complicated transient components. With adaptive concentration method controlled by an additional parameter m, an adaptive generalized S transform (AGST) is developed in this paper. The simulation shows that the AGST method has a better time-frequency resolution than S transform. The AGST method is then applied to analyze the vibration signal of the cylinder head cover of a four-cylinder diesel engine. The result indicates that the time-frequency representation of the vibration signal obtained by AGST has a good resolution, and the vibration components, such as combustion shock and valve-slap, can be exactly identified. The research is of great significance for the structural optimization and vibration control for the diesel engine.
Zhenyu Du and Bin Liu
X. Zheng and Z. Y. Hao, "Application of the AGST Method to the Vibration Analysis of the Diesel Engine Cylinder Head Cover", Applied Mechanics and Materials, Vols. 26-28, pp. 222-226, 2010