A coupled engine-block and crankshaft model is developed and applied to predict the engine block vibration and radiated noise. Block surface vibration which is excited by combustion pulses and inertia loads is investigated as the source of radiated noise. The predicted response shows the dominant engine harmonics, resonant frequencies, global modes and local surfaces which participate to produce the radiated noise. A structural modification is evaluated which reduces the transmission of the loads through the bulkheads, and significant vibration and noise reduction is predicted.
Engine Vibration and Noise Reduction Using a Crank-Block System Model
Sae Technical Papers
SAE Noise and Vibration Conference and Exposition ; 1989
1989-05-01
Conference paper
English
Engine vibration and noise reduction using a crank-block system model
Automotive engineering | 1989
|Powerplant Block-Crank Dynamic Interaction and Radiated Noise Prediction
British Library Conference Proceedings | 2003
|Powerplant Block-Crank Dynamic Interaction and Radiated Noise Prediction
SAE Technical Papers | 2003
|Powerplant block-crank dynamic interaction and radiated noise prediction
Automotive engineering | 2003
|Engine Fault Detection Using Vibration Signal Reconstruction in the Crank-Angle Domain
SAE Technical Papers | 2011
|