Simplified scale models are shown to be useful for determining the low-frequency sound transfer properties of an exhaust system of a large low speed marine diesel engine. Experimental results of a full-scale system including silencers closely agree with model results. Ways of constructing, simplifying and investigating the models are indicated.
Resistance modelling is discussed.
A practical example of calculating the exhaust sound pressure level on a bridge wing due to a typical two-stroke six-cylinder engine with two turbo-superchargers and symmetrical exhaust is treated extensively.
Remaining problems are summarized.
Marine diesel engine exhaust noise1
Part II. Scale models of exhaust systems
International Shipbuilding Progress ; 15 , 170 ; 353-370
1968-10-01
18 pages
Article (Journal)
Electronic Resource
English
Marine diesel engine exhaust noise1
IOS Press | 1968
|Marine diesel exhaust noise -- 1
Engineering Index Backfile | 1968
|IOS Press | 1968
|Marine diesel exhaust noise -- 1
Engineering Index Backfile | 1968
|