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Surface acoustical intensity measurements on a diesel engine
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | McGary, M. C. Crocker, M. J. |
| Copyright Year | 1980 |
| Description | The use of surface intensity measurements as an alternative to the conventional selective wrapping technique of noise source identification and ranking on diesel engines was investigated. A six cylinder, in line turbocharged, 350 horsepower diesel engine was used. Sound power was measured under anechoic conditions for eight separate parts of the engine at steady state operating conditions using the conventional technique. Sound power measurements were repeated on five separate parts of the engine using the surface intensity at the same steady state operating conditions. The results were compared by plotting sound power level against frequency and noise source rankings for the two methods. |
| File Size | 1820309 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800016610 |
| Archival Resource Key | ark:/13960/t46q6rw8w |
| Language | English |
| Publisher Date | 1980-04-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Anechoic Chambers Loudness Acoustic Measurement Power Spectra Diesel Engines Engine Noise Noise Intensity Surface Properties Frequency Ranges Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
