Professor Mats Åbom, D.Sc. (Tech.)

Mats Åbom

Address:

Department of Aeronautical and Vehicle Engineering
MWL
KTH Royal Institute of Technology
SE-100 44 Stockholm, Sweden

Phone:  +46-8-790 79 44

E-mail Mats Åbom

Education

D.Sc.(Tech.) in Engineering Acoustics, KTH, Stockholm, Sweden. 1995
Dr.Tech. in Engineering Acoustics, KTH, Stockholm, Sweden. 1989
M.Sc. in Engineering physics, KTH, Stockholm, Sweden. 1979

Non-academic experience

ABB Corporate Research, Västerås, Sweden, 1996-2000.
Employed as acoustic specialist and main project leader.
Work involving silencers for gasturbines and ships, whistling noise, fan noise and active control.

Teaching

SD2155 Flow Acoustics

Research interests

Sound generation and propagation in fluid media mainly with application to fluid machines and vehicles, in particular the following areas:

  • Interior aeroacoustics and modelling of in-duct sources
  • In-duct sound transmission and silencers
  • Experimental methods
  • Low noise design

Publications

Journal papers

  • Bodén, H. and Åbom, M. (1986). Influence of errors on the two-microphone method for measuring acoustic properties in ducts. Journal of the Acoustical Society of America, 79(2), 541-549.
  • Åbom, M. (1986). A note on random errors in frequency response estimators. Journal of Sound and Vibration , 107(2), 355-358.
  • Åbom, M. and Bodén, H. (1987). A method for estimating the sound power radiated from plates with prescribed excitation in the multi-mode region. Applied Acoustics , 22(3), 203-212.
  • Åbom, M. (1987). An analytical model for reactive silencers based on Bragg-scattering. Journal of Sound and Vibration, 212(2), 384-388.
  • Åbom, M. and Bodén, H. (1988). Error analysis of two-microphone measurements in ducts with flow. Journal of the Acoustical Society of America, 83(6), 2429-2438.
  • Åbom, M. and Bodén, H. (1988). Comments on "On uniqueness, transfer and combination of acoustic sources in one-dimensional systems". Journal of Sound and Vibration , 128(1), 163-164.
  • Åbom, M. (1989). Modal decomposition in ducts based on transfer function measurements between microphone pairs. Journal of Sound and Vibration , 135(1), 95-114.
  • Åbom, M. (1990). Derivation of the four-pole parameters including higher order mode effects for expansion chamber mufflers with extended inlet and outlet. Journal of Sound and Vibration , 137(3), 403-418.
  • Åbom, M. (1991). Measurement of the scattering-matrix of acoustical two-ports. Mech. Systems and Signal Proc, 5(2), 89-104.
  • Åbom, M. (1992). A note on the experimental determination of acoustical two-port matrices. Journal of Sound and Vibration, 155(1), 185-188.
  • Lavrentjev, J., Bodén, H. and Åbom, M. (1992). A linearity test for acoustic one-port sources. Journal of Sound and Vibration, 155(3), 534-539.
  • Okamoto, Y., Bodén, H. and Åbom, M., (1994). Active noise control in ducts via side-branch resonators. Journal of the Acoustical Society of America, 96(3), 1533-1538.
  • Lavrentjev, J. , Åbom, M and Bodén, M. (1995). A measurement method for determining the source data of acoustic two-port sources. Journal of Sound and Vibration, 183(3), 517-531.
  • Åbom, M. and Bodén, H. (1995). A note on the aeroacoustic source character of in-duct axial fans. Journal of Sound and Vibration 186(4), 589-598.
  • Bodén, H. and Åbom, M. (1995). Maximum sound power from in-duct sources with applications to axial fans. Journal of Sound and Vibration , 187(3), 543-550.
  • Bodén, H. and Åbom, M. (1995). Modelling of fluid machines as sources of sound in duct and pipe systems. Acta Acustica 3(Dec), 1-12.
  • Lavrentjev, J. and Åbom, M. (1995). A measurement method to determine the source-data of acoustic N-port sources. Journal of Sound and Vibration , 197(1), 1-16.
  • Glav, R. and Åbom, M. (1997). A general formalism for analyzing acoustic 2-port networks. Journal of Sound and Vibration, 202(5), 739-747.
  • Reagaud, P.L., Glav, R. and Åbom, M. (2004). Study of a folded resonator including the effects of higher order modes. Journal of Sound and Vibration, 273(4-5), 777-792.
  • Allam, S. and Åbom, M. (2005). Acoustic modelling and testing of diesel particulate filters. Journal of Sound and Vibration, 288(1-2), 255-273.
  • Allam, S. and Åbom, M. (2006). Sound propagation in an array of narrow porous channels with application to diesel particulate filters. Journal of Sound and Vibration, 291(3-5), 882-901.
  • Allam, S. and Åbom, M. (2006). Investigation of damping and radiation using full plane wave decomposition in ducts. Journal of Sound andVibration , 292(3-5), 519-534.
  • Allam, S. and Åbom, M. (2006). Modelling and testing of After-Treatment Devices. ASME Journal of Vibration and Acoustics, 128, 347-356.
  • H. Rämmal and M. Åbom, 2007. Characterization of air terminal device using acoustic 1-port source models. Journal of Sound andVibration 300, pp. 727-743.
  • M. Karlsson, R. Glav and M. Åbom, 2008. The Herschel-Quincke tube: The attenuation conditions and their sensitivity to mean flow. Journal of the Acoustical Society of America 124(2), pp. 723-732.
  • M. Knutsson and M. Åbom, 2009. Sound propagation in narrow tubes including the effects of viscothermal and turbulent damping with application to charge air coolers. Journal of Sound andVibration 320, pp. 289-321.
  • Elnady, T., Allam, S. and Åbom, M. (2010) Modelling perforates in mufflers using two-ports, ASME Journal of Vibration and Acoustics, Dec. 2010.
  • Bolin, K. and Åbom, M. (2010) Air-borne sound generated by sea waves, J.Acoust. Soc. Am., 127(5), 2771-2779.
  • Karlssson, M. and Åbom, M. (2010) Aeroacoustics of T-junctions – An experimental investigation. Journal of Sound and Vibration, 329, 1793-1808.
  • Knutsson, M. and Åbom, M. (2010), The effect of turbulence damping on acoustic wave propagation in tubes. Journal of Sound and Vibration, 329,4719-4739.

Conference papers

  • Bodén, H. and Åbom, M. (1982). Design of acoustical jackets for machines. Proc. INTER-NOISE, 82, 361-364.
  • Bodén, H. and Åbom, M. (1984). Tvåmikrofonmätningar i rörsystem. Nordiska Akustiska Sällskapets möte (NAS-84), 206-209.
  • Bodén, H. and Åbom, M. (1985). An error analysis for two-microphone measurements in ducts. Proc. INTER-NOISE'85, 1203-1206.
  • Wallin, H.P. and Åbom, M. (1986). Description of a flow noise test facility. Proc. Nordic Acoustical Meeting (NAM-86), 389-391.
  • Åbom, M. and Bodén, H. (1986). Measurement of the matching between two microphone channels. Proc. Nordic Acoustical Meeting (NAM-86), 217-220.
  • Åbom, M. and Bodén, H. 1986. Estimation of the sound power radiated from a plate with edge excitation. Proc. Nordic Acoustical Meeting (NAM-86), 369-372.
  • Glav, R., Bodén, H. and Åbom, M. (1988). An acoustical model for car catalytic converters. (Invited paper). Proc. INTER-NOISE'88, 1261-1266.
  • Åbom, M., Bodén, H. and Hirvonen, H. (1988). A simple linear model for the source impedance of an internal combustion engine and manifold. Proc. INTER-NOISE'88, 1273-1276.
  • Åbom, M. (1989). Modal decomposition in ducts based on transfer function measurements between microphone pairs. Proc. ICA'89, 69-72.
  • Åbom, M. (1990). Measurement of the sound power radiated from a fluid-filled structure by using the reciprocity principle. Proc. Nordic Acoustical Meeting (NAM-90), 75-80.
  • Åbom, M. (1990). Measurement of the scattering-matrix of acoustical two-ports. Proc. INTER-NOISE'90, 537-540.
  • Bodén, H. and Åbom, M. 1990. Characterization of acoustic two-port sources. Proc. INTER-NOISE'90, 541-544.
  • Åbom, M. (1992). A measurement method to determine acoustic 4-pole matrices. Proc. ISATA'92, 169-175.
  • Bodén, H., Åbom, M. and Lavrentjev, J. (1992). Experimental methods for determining the source characteristics of fans modelled as acoustic one-port sources. Proc. Int. INCE Symposium on Fan Noise, CETIM Senlis, France, 351- 358.
  • Åbom, M., Bodén, H. and Lavrentjev, J. (1992). Source characterization of fans using acoustic 2-port models. Proc. Int. INCE Symposium on Fan Noise, CETIM, Senlis, France, 359-364.
  • Bodén, H., Åbom, M. and Lavrentjev, J. (1993). Characterisation of fluid machines as acoustic two-port sources - Test of a measurement method. Proc. INTER-NOISE'93, 1235-1238.
  • Okamoto, Y., Bodén, H. and Åbom, M. (1993). Analysis of mufflers with dynamic terminations. Proc. INTER-NOISE'93, 1045-1048.
  • Åbom, M. and Bodén, H. (1994). Investigation of the sound generation from an in-duct fan using a 2-port model. Proc. INTER-NOISE'94, 361-366.
  • Lavrentjev, J. and Åbom, M. (1994). On the modelling of fluid machines as acoustic N-port sources. Proc. INTER-NOISE, 94, 379-382.
  • Lavrentjev, J. and Åbom, M. (1995). Measurement of source data for fluid machines including higher order mode effects. Proc. ICA'95, 543-546.
  • Åbom, M. and Nilsson, B. (1995). Sound transmission at a sudden area expansion in a flow duct. Proc. ICA'95, 563-566.
  • Åbom, M., Bodén, H. and Lavrentjev, J. (1996). Acoustic source data for fans. (Invited paper). Forum Acusticum'96.
  • Bodén, H. and Åbom, M. (1996). IC-engines as sources of sound in exhaust systems. (Invited paper) Forum Acusticum'96.
  • Glav, R., Åbom, M. and Nygård, S. (1997). Analysis of multi-branch flow ducts. Proc. INTER-NOISE'97, 359-362.
  • Åbom, M., Glav, R. and Ljungqvist, J. (1997). Measurement of turbulent generated noise in ducts. Proc. INTER-NOISE'97, 387-390.
  • Åbom, M. and Glav, R. (1998). A CAD tool for acoustic analysis of intake and exhaust systems. Proc. EAA Symposium on Transport Noise and Vibration, 181-184.
  • Glav, R. and Åbom, M. (1998). Application of the 2-port method to commercial IC-engine exhausts. Proc. EAA Symposium on Transport Noise and Vibration, 185-188.
  • Johansson, C-G., Mimer, M. and Åbom, M. (1998). Turbulence supressing probes for in duct measurements. INTER-NOISE'98.
  • Åbom, M. (1998). On the relationship between radiation and response in acoustics. INTER-NOISE'98.
  • Lalanne, J.G. , Bodén, H., Åbom, M. and Parchen, R. (1999). Prediction of the sound power generated by a ducted axial flow fan. Euromech Colloquium: Vibro-Acoustics and Flow-Structure Interactions, 19-23 April 1999 Corsica.
  • Åbom, M. (1999). Determination of porous material data via 2-port measurements, INTER-NOISE'99.
  • Åbom, M. and Schiegg, O. (1999). Turbulence noise suppression methods for ANC in ducts. ACTIVE'99.
  • Bodén, H. and Åbom, M. (2000). Low frequency acoustic source characterisation for in-duct fans. INTER-NOISE 2000.
  • Gijrath, H., Nygård, S. and Åbom, M. (2001). Modelling of flow generated sound in ducts. ICSV 8, paper no. 578.
  • Åbom, M. and Gijrath, H. (2002). A matrix formalism for fluid-borne sound in pipe systems. Proc. of ASME 5th Int. symposium on valve noise and vibrations, New Orleans, USA.
  • Rämmal, H. and Åbom, M. (2003). Characterization of air terminal device using acoustic 1-port models. ICSV 10, Stockholm, Sweden, 1829-1840.
  • Ducret, F. and Åbom, M. (2003). Low frequency sound propagation in rectangular ducts. ICSV 10, Stockholm, Sweden, 3219-3227.
  • Sabry Allam and Mats Åbom, 2003. On transmission of sound in diesel particulate filters (DPF:s). ICSV10, Stockholm.
  • Hans Gijrath and Mats Ăbom, 2003. Flow Induced Noise Modelling for Industrial Piping Systems. ICSV10, Stockholm.
  • Ragnar Glava, Alberto Costa and Mats Åbom, 2003. Application of the folded resonator. ICSV10, Stockholm.
  • Berglund, P-O. and Åbom, M. (2003). Dipole source data for small axial type fans. Fan Noise 2003, CETIM, France.
  • Bodén, H. and Åbom, M. (2003). On acoustic fan installation effects: Summary of work done at MWL. Fan Noise 2003, CETIM, France.
  • Sabry Allam and Mats Åbom, 2003. Acoustic Modelling of an After-Treatment Device (ATD). Euronoise Naples 2003.
  • Fabrice Ducret and Mats Åbom, 2004. Aero-acoustic behaviour of different exhaust pipe geometries. ICSV11, St:Petersburg.
  • Allam, S. and Åbom, M. (2005). Full plane wave decomposition using microphone arrays in ducts. NOVEM 2005, St:Raphael, France.
  • Allam, S. and Åbom.M. (2005). Diesel engine after treatment devices: Acoustic modelling. ICSV 12, Lissabon, Portugal.
  • Mats Åbom, Sabry Allam and Susann Boij, 2006. Aeroacoustics of flow duct singularities at low Mach-numbers. 12th AIAA/CEAS Aeeroacoustics Conference, AIAA paper 2006-2687, Boston.
  • Tamer Elnady and Mats Åbom, 2005. Modelling perforates in mufflers using two-ports. ICSV 12, Lissabon.
  • Sabry Allam and Mats Åbom, 2006. Acoustic modelling and testing of complex car muffler. ICSV 13, Vienna.
  • Sabry Allam and Mats Åbom, 2006. Advanced experimental procedure for in-duct aeroacoustics. ICSV 13, Vienna.
  • Tamer Elnady and Mats Åbom. 2006. Sidlab: new 1D sound propagation simulation software for complex duct networks. ICSV 13, Vienna.
  • Kierkegaard A., Efraimsson G., Hoepffner J., Åkervik E. and Åbom M, 2006. Identification of sources of sound in low mach number flows by the use of flow field eigenmodes. ICSV 13, Vienna.
  • Fairbrother R., Åbom M., Elnady T. and Ollivier F., 2006. Linear acoustic simulation and experimental characterisation of a modular automotive muffler. ICSV 13, Vienna.
  • Allam S., Bodén H. and Åbom M., 2006. Over-determination in acoustic two-port data measurement. ICSV 13, Vienna.
  • Yan Jiang, Mats Åbom, Leping Feng, Serguei Timouchev and Christophe Maliczak, 2007. Investigation of sound generation from an axial fan for engine cooling. Fan Noise 2007, Int. Conference, Lyon.
  • Christophe Maliczak, Michel Rogerm Mats Åbom and Anders Frid, 2007. Development of an analytical tool to predict the noise emitted by a diesel cooling fan unit. Fan Noise 2007, Int. Conference, Lyon.
  • Anders Frid, Mats Åbom, Yan Jiang, Yunfei Wang and Karl-Richard Fehse, 2007. Cooling fans in railway vehicles - Application of noise control measures in a roof-mounted engine cooler. Fan Noise 2007, Int. Conference, Lyon.
  • Hans Rämmal and Mats Åbom, 2007. Acoustics of Turbochargers. SAE paper 2007-01-2205. SAE NVH 2007 Conference.
  • Magnus Knutsson and Mats Åbom, 2007. Acoustic Analysis of Charge Air Coolers. SAE paper 2007-01-2208. SAE NVH 2007 Conference.
  • Sabry Allam and Mats Åbom, 2007. Aeroacoustic Investigation of Diaphragm orifices in Ducts. Inter-Noise 2007, Istanbul-Turkey.
  • Magnus Knutsson and Mats Åbom, 2007. Sound propagation in narrow channels with arbitrary cross-sections and superimposed mean flow with application to charge air coolers. ICSV14, Cairns-Australia.
  • Gunilla Efraimsson, Timm Pieper, Mats Åbom and Susann Boij, Simulation of wave scattering at an orifice by using a Navier-Stokes solver, 2007. 13th AIAA/CEAS Aeroacoustics Conference 2007.
  • Ying Guo, Sabry Allam and Mats Åbom, 2008. Micro-perforated plates for vehicle applications. Inter-Noise 2008, Shanghai-China.
  • Tamer Elnady, Sara Elsaadany and Mats Åbom, 2008. Flow and pressure drop calculations using two-ports. ICSV15, Daejon-Korea.
  • Sabry Allam and Mats Åbom, 2008. Experimental Characterization of Acoustic Liners with Extended Reaction. 14th AIAA/CEAS Aeroacoustics Conference, Vancouver-Canada.
  • M. Karlsson, A. Holmberg, M. Åbom, B. Fallenius and J. Fransson, 2009. Experimental determination of the aero-acoustic properties of an in-duct flexible plate, 14th AIAA/CEAS Aeroacoustics Conference, Vancouver-Canada.
  • Mats Åbom, Mikael Karlsson and Axel Kierkegaard, 2009. On the use of linear aeroacoustic methods to predict whistling. Noise and Vibration: Emerging Methods (NOVEM), 5-8 April 2009 Oxford.
  • Sabry Allam, Ying Guo and Mats Åbom, 2009. Acoustical Study of Micro-Perforated Plates for Vehicle Applications. SAE paper 2009-01-2037. SAE NVH 2009 Conference.
  • Hans Rämmal and Mats Åbom, 2009. Experimental Determination of Sound Transmission in Turbo-Compressors. SAE paper 2009-01-2045. SAE NVH 2009 Conference.
  • Mats Åbom Mikael Karlsson and Axel Kierkegaard, 2009. On the use of linear aero-acoustic models to predict whistling. ICSV16, Krakow.
  • Elnady Tamer, Elsaadany Sara and Åbom Mats, 2009. Investigation into modeling of multi-perforated mufflers. ICSV16, Krakow.
  • Hans Rämmal, Heiki Tiikoja, Mats Åbom and Hans Bodén, 2009. Experimental Facility for the Complete Determination of Sound Transmission in Turbochargers. Styrian Conference on NVH, Graz, Austria. SAE paper 2010-01-1427.
  • Mats Åbom and Mikael Karlsson, 2010. Can Acoustic Multi-port Models be used to Predict Whistling. 16th AIAA/CEAS Aeroacoustics Conference, Stockholm.
  • A. Holmberg, H. Bodén and M. Åbom, 2010. The Error Suppression of an Experimental Over-Determination of In-Duct Flow Noise Sources, 16th AIAA/CEAS Aeroacoustics Conference, Stockholm.
  • Kierkegaard, A., Efraimsson, G., Boij, S. and Åbom, M. (2010) Simulations of the Whistling Potentiality of an In- Duct Orifice with Linear Aeroacoustics. 16th AIAA/CEAS Aeroacoustics Conference, AIAA-2010-4008.
  • Boij, S., Åbom, M. and Pieters, R. (2010) Reflection properties for a flow pipe with a small angle diffuser outlet. ICSV17, Cairo 18-22 July 2010.
  • Sabry Allam and Mats Åbom, 2010. On optimal design of mufflers using micro-perforated panels. ICSV17, Cairo 18-22 July 2010.
  • Mats Åbom, 2010. Acoustic multi-ports with application to duct acoustics. Keynote paper. ICSV17, Cairo 18-22 July 2010.

Books

  • Handbook of Noise and Vibration Control-Wiley, Chap. 75 Valve induced noise, with Hans Baumann.
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