Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/13984

Title: Air intake system noise in a turbocharged petrol engine during transient operation
Authors: Pai, Ajith V.
Walsh, Stephen J.
O'Boy, D.J.
Chen, Rui
Keywords: Turbocharger
Issue Date: 2013
Publisher: Curran Associates on behalf of International Institute of Noise Control Engineering (I-INCE) / © The authors
Citation: PAI, A.V. ... et al, 2013. Air intake system noise in a turbocharged petrol engine during transient operation. Presented at Internoise 2013 the 42nd International Congress and Exposition on Noise Control Engineering, 15th-18th September 2013, Innsbruck, Austria.
Abstract: Engine downsizing is undertaken in the automotive industry in order to reduce the emissions and the fuel consumption of the vehicle. Turbocharging is one of the important methods to enable downsizing of the engine; however, increased noise is the side-effect of this introduction. The noise generation is assumed to be due to the operation of turbocharger very close to the surge zone of the compressor map. For example, the compressor map is typically measured under static laboratory test conditions and may be different in the dynamic environment of the intake system during engine operation. The aim of this paper is to outline the methods used by the authors to predict and measure the turbocharger noise generation and also to understand its fundamental mechanism. A naturally aspirated car is chosen to measure the noise generated at the intake system as a starting point. Analysis methods such as STFT for the acquired data measured are explained. This will form a basis for further analysis on a turbocharged car. A simulation methodology is outlined in order to predict the noise generation mechanism. The static pressures predicted on various locations of intake system, such as upstream and downstream of compressor, are processed to obtain estimates of the sound pressure in both the frequency and the time domains. A modular turbocharger rig is designed to study the intake system dynamics during compressor surge operation and to further understand the noise generation mechanism. The paper is concluded by listing the future work planned.
Description: This is a conference paper.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/13984
ISBN: 9781632662675
Appears in Collections:Conference Papers and Presentations (Aeronautical and Automotive Engineering)

Files associated with this item:

File Description SizeFormat
Authors Version Internoise2013 Paper 0751.pdfAccepted version2.91 MBAdobe PDFView/Open


SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.