Prediction of Engine Noise using Parameterized Combustion Pressure Curves
2007 (English)In: SAE technical paper series, ISSN 0148-7191Article in journal (Refereed) Published
A parameterization for combustion chamber cylinderpressures is tuned to measurements on an inline 6cylinder Diesel engine at different operating conditions.Both measured and modeled signals are filtered in thefrequency domain and according to the so called Lucasattenuation. Two different estimates of engine radiatednoise are obtained and compared in this fashion. Theinfluence of physically meaningful parameters on thefrequency contents of the final noise level is analyzed,as well as the contribution of the pressure trace of themotored engine. The scattering of data in the pressuresignal is calculated as a function of the crank angleallowing for statistical considerations.
Place, publisher, year, edition, pages
SAE International , 2007.
Combustion pressure; Crank angle; Cylinder pressures; Engine noise; Frequency contents; Frequency domains; In-line; Noise levels; Operating condition; Parameterized; Pressure signal; Radiated noise
Control Engineering Signal Processing
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-73582DOI: 10.4271/2007-01-2373ScopusID: 2-s2.0-84877189801OAI: oai:DiVA.org:kth-73582DiVA: diva2:489010
Noise and Vibration Conference and Exhibition; St. Charles, IL; United States; 15 May 2007 through 17 May 2007
QC 20120523. QC 201601292012-02-022012-02-022016-01-29Bibliographically approved