Comparison between Surface Intensity, Acoustic Intensity and Selective Wrapping Noise Measurements on a Diesel Engine

Engine Noise ◽  
1982 ◽  
pp. 279-311 ◽  
Author(s):  
M. J. Crocker
Keyword(s):  
Diesel Engine ◽  
Acoustic Intensity ◽  
Noise Measurements

Transient and Unstable Torsional Vibrations on a 4-Stroke Marine Diesel Engine

2003 ◽  
Author(s):  
D. C. Lee ◽  
J. D. Yu
Keyword(s):  
Diesel Engine ◽  
Torsional Vibration ◽  
Marine Diesel Engine ◽  
Torsional Vibrations ◽  
Steady State Condition ◽  
Marine Propulsion ◽  
Friction Clutch ◽  
Marine Diesel ◽  
Noise Measurements ◽  
Unstable Vibration

Under steady state condition, unstable torsional vibration normally does not occur in shafting systems using 4stroke diesel engine due to hysteresis damping of shafting system and relative damping of standard fitted damper. However, the unstable torsional vibration occurs on marine propulsion shafting systems due to slippage of a multi-friction clutch installed between increasing gear box and shaft generator. To identify this unstable vibration and make proper counter measure, the simulation for transient torsional vibration using the Newmark method is introduced in this paper. The mechanism of this unstable vibration is verified by vibration and noise measurements of the shafting system.

Source Identification on a Diesel Engine Using Acoustic Intensity Measurements

1982 ◽  
Vol 18 (3) ◽  
pp. 84 ◽  
Author(s):  
Thomas E. Reinhart ◽  
Malcolm J. Crocker
Keyword(s):  
Diesel Engine ◽  
Source Identification ◽  
Acoustic Intensity ◽  
Intensity Measurements

The Diesel Engine

1915 ◽  
Vol 80 (2085supp) ◽  
pp. 394-395
Author(s):  
C. Kloos
Keyword(s):  
Diesel Engine
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