Correlation of Simulated and Measured Noise Emissions and Unsteady Gas Dynamic Flow from Engine Ducting The Queen's University of Belfast

Format:

Conference/Event

Author/Creator:

Mackey, D. O., author.

Conference Name:

1996 SAE International Off-Highway and Powerplant Congress and Exposition (1996-08-26 : Indianapolis, Indiana, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1996

Summary:

One-dimensional (1-D) unsteady gas dynamic models of a number of common muffler (or silencer) elements have been incorporated into a1-D simulation code to predict the impact of the muffler on the gas dynamics within the overall system and the radiated Sound Pressure Level (SPL) noise spectrum in free-space.Correlation with measured data has been achieved using a Single-Pulse rig for detailed unsteady gas dynamic analysis and a Rotary-Valve rig in conjunction with an anechoic chamber for noise spectra analysis. The results obtained show good agreement both gas dynamically and acoustically. The incorporation of these models into a full 1-D engine simulation code should facilitate the rapid assessment of various muffler designs prior to prototype manufacture and testing

Notes:

Vendor supplied data

Publisher Number:

961806

Access Restriction:

Restricted for use by site license