- e uv e ^ Katholieke Universiteit Leuven

J~/[^" Faculty of Engineering

^y \^S Department of Mechanical Engineering

,„!;„' Division of Production Engineering, Machineuniversiteit Design & Automation

PIIM'I/ AI Celestijnenlaan 300B, B-3001 Leuven (Heverlee)kMJ&J Belgium

Proceedings of ISMA25

2000 International Conference on

Noise and VibrationEngineering

Volume

2000 September 13-15 Editors : P. Sas, D. Moens

XIX

3-Dimensional animation of a real disc brake generating noise 1113Talbot C, Al.Banawi K, Fieldhouse J.D., The University of Huddersfield, UK

On the problem of obtaining consistent estimates from multi-patch modal tests 1119Van derAuweraer H, Leurs W., Mas P., Hermans L, IMS International, Belgium

Substructuring and couplingSession SUBC

Two methodological improvements for component mode synthesis 1127Brechlin E., Robert Bosch GmbH, GermanyGaul L., University of Stuttgart, Germany

Error analysis for FRF-based substructuring 1135Brechlin E., Bendel K., Robert Bosch GmbH, GermanyGaul L, University of Stuttgart, Germany

Evaluation of the FRF based substructuring and modal synthesis technique applied to 1143vehicle FE dataCuppens K., Sas P., K. U.Leuven, BelgiumHermans L, LMS International, Belgium

Model reduction for structures with damping and gyroscopic effects 1151FriswellM., University of Wales Sansea, UKPenny J.E.T., Aston University, UKGarvey S.D., Nottingham University, UK

Estimation and use of residual modes in modal coupling calculations: a case study 1159Hermans L., Mas P., Leurs W., Boucart N., LMS International, Belgium

Model reduction for efficient FEM/BEM coupling 1167Kergourlay G., Balmes E., Clouteau D., Ecole Centrale Paris, France

Reduction of finite element models of flexible structures for controller design and 1175integrated modelling*SchonhoffU, Darmstadt University of Technology, GermanyEisentrager P., MAN Technologie AG, GermanyNordmann R., Darmstadt University of Technology, Germany

Dynamic substructuring in the medium-frequency range 1185Soize C, Mziou S., ONERA, France

Reduction methods in structural coupling 1193Urgueira A.P.V., Faculdade de Ciencias e Tecnologia, PortugalMaia N.M.M., Instituto Superior Tecnico, PortugalAlmeida R.A.B., Faculdade de Ciincias e Technologia, Portugal

XX

System and parameter identificationSession SPID

A subspace fitting method for structure modal identification in time domain 1201Clara Serra R., Rajfy M., Gontier C, Ecole d'Ingenieur du Val de Loire, France

Optimal excitation for identification of a cam set-up 1209Demeulenaere B., Lampaert V., Swevers J., De SchutterJ., K.U.Leuven, Belgium

Identification of rigid body properties of 3-D frame structure by MCK identification method 1217Okuma M., Tokyo Institute of Technology, JapanHeylin W., Sas P., K.U.Leuven, Belgium

Adaptive Kalman filter for noise identification 1225Oussalah M., De SchutterJ., K.U.Leuven, Belgium

Critical comparison and assessment of SISO time-domain parametric methods for the 1233identification of vibrating systemsPetsounis K.A., Fassois S.D., University ofPatras, Greece

Condensation of frequency response test data by the QR decomposition 1241Rades M., Universitatea Politehnica Bucuresti, Romania

Modal identification in presence of noise using an optimisation approach 1247Thonon C, Golinval J.-C, University de Liege, Belgium

Transfer path analysis and source identificationSession TPSI

Engine noise characterization using an inverse boundary element method 1253Defosse H., Domagnez F., Hamdi M.A., Straco, FranceFrikha S., Ollivier F., University of Pierre et Marie Curie, FranceVaret T, Beauvilain T, I.D.V.U., France

PULSE™ modal test consultant using MATLAB™ a dedicated tool for noise path analysis 1261Glibert P., M0ller N.B., Ryu Y.S., Briiel & Kjar, Denmark

Comparison of the use two methods for characterising structure-borne sound sources 1269Janssens M.H.A., Termeer M.K., de Jong C.A.F., TU Delft, The Netherlands

The identification of diesel engine noise sources 1277Li W., Gu F., BallA.D., Leung A.Y.T., The University of Manchester, UK

XXI

Vehicle noise and vibration: applicationsSession VNVA

Optimization of an AWD electromechanical biasing clutch system for vibration reduction 1285Fair C, Isley D., BorgWarner, USA

Local damping effects in acoustic analysis of large FE engine structures 1293Fischer P., Engelbrechtsmilller M., Steyr-Daimler-Puch AG, Austria

Prediction of structural and kinematic coupled vibration on internal combustion engine 1301Kawamoto A., Inagaki M., Aoyama T, Mori N., Toyota Central R&D Labs., JapanIkeura O., Uno T, Yamamoto K., Toyota Motor Corporation, Japan

Optimisation of engine mount systems on front-wheel-drive vehicles for multiple 1309operational conditionsNel C.B., Structural Analysis cc, South Africa

Application of experimental modal analysis and sound intensity in determining 1317diesel-engine noise emissionPetrovic P., Jankovic S., Industrija Motor a Rakovica d.d. Beograde, YugoslaviaOgnjanovic M., University of Belgrade, Yugoslavia

Vehicle noise and vibration: methodsSession VNVM

Methods for improving the objective description of subjective car vibration quality 1323assessmentsBellmann M.A., Weber R., Baumann I., C.v. Ossietzky Universitat Oldenburg, GermanyHillebrand P., Volkswagen AG, GermanyMellert V., C.v. Ossietzky Universitat Oldenburg, Germany

An analytical-experimental method for analysing the low-frequency interior acoustics of a 1331passenger carDebeaux E., Claessens M., Audi AG, GermanyHu X., EDAG, Germany

Solving vehicle noise problems by analysis of the transmitted sound energy 1339Haverkamp M., Ford Werke AG, Germany

Enabling vibro-acoustic optimization in a superelement environment: a case study 1347Hermans L, Brughmans M., LMS International, Belgium

Vibration and dynamic instability of moving load systems 1355OuyangH., MottersheadJ., Li W., University of Liverpool, UK

XXII

Body in white panel noise assessment through spatial and modal contribution analysis 1361Van der Linden P.J.G., Gerard F., Michiels K, Van der Auweraer H., LMSInternational, BelgiumStorer D., Centro Ricerche Fiat, Italy

Associating the vibrations of car body panels to the internal acoustic response 1369Vanolo M., Storer D., Centro Ricerche FIAT, Italyvan der Auweraer H., LMS International, Belgium

Vibro-acoustic analysisSession VAA

Acoustic field in the stiffened shell from the dipole source 1377Baranov S.N., Russian Aviation Co, RussiaEfimtsov B.M., Zverev A.Y., Chernyh V.V., TsAGI, Russia

Vibration and internal noise prediction of an aircraft fuselage in the low- and 1383medium-frequency rangesDavid J.-M., Guillaumie L, ONERA, France

A complete analysis of dynamic behaviour of hermetic compressor cavity to improve the 1391muffler designDelia Libera M., Faraon A., Solari A., Electrolux Compressors, Italy

Development of a tool for vibro-acoustic design of timing belts by integration of laser 1397Doppler vibrometry and boundary element techniquesDi Sante R., Tomasini E.P., Universita degli Studi di Ancona, ItalyRossi G.L., Universita degli Studi di Perugia, Italy

Effects, interpretation and practical application of truncated SVD in the numerical solution 1405of inverse radiation problemsMdrki F., Augusztinovicz F., Budapest University of Technology and Economics, Hungary

Experimental modal analysis of a cavity using a calibrated acoustic actuator 1415Rossetto G.D., Arruda J.R.F., Huallpa B.N., Universidade Estadual de Campinas, Brazil

Hybrid strain analysis applied to a partly viscoelastic vibrating structure 1423Sehlstedt N, The Aeronautical Research Institute of Sweden, Sweden

Vibro-acoustic modellingSession VAM

Analysis of a new type of acoustic wall stud 1431Dovidsson P., Wernberg P.-A., Sandberg G., Lund University, Sweden

XXUl

Semi-analytical finite elements for vibration analysis in the fluid-structure interaction of 1439axisymmetrical shellsDushin A.Y., The Saint-Petersburg Marine Technical State University, Russia

An efficient formulation for the analysis of acoustic and elastic waves propagation in 1443porous-elastic materialsHatndi M.A., MebarekL., OmraniA., Straco, FranceAtallaN, GAUS, Canada

On axially symmetric modes in finite elastic cylinders 1449Kari L, KTH Stockholm, Sweden

Element-free Galerkin method applied to acoustics : multi-processor assembly algorithm 1457Lacroix V., Suleau S., Bouillard Ph., VUB, Belgium

Modelling of LV control system bay vibrations induced by acoustical loading 1465LikhodedA., Kildibekov /., TsNIIMash, RussiaKozlov A., TsSKB-Progress, RussiaPanichkinN., Sidorov V., Vjilomov V., Vvedensky N., TsNIIMash, Russia

Influence of the environment on the aeroacoustic behavior of axial fans 1471Maaloum K, Kouidri S., Bakir F., Rey R., LEMFl, France

A finite difference analysis of plate vibration using a wave expansion technique 1477Rice H.J., Ruiz G., Trinity College, Ireland

Towards a feasible numerical approach for industrial flow noise applications 1483Van Ransbeeck P., El Hachemi Z., Cremers L, Guisset P., LMS International, Belgium

Workshop: Agro-product quality controlSession AGRQC

Differences in chewing sounds of dry crisp snacks by multivariate data analysis 1485De Belie N., K.U.Leuven, BelgiumSivertsvikM., NORCONSERV, NorwayDe Baerdemaeker J., K.U.Leuven, Belgium

Part I: Parameter estimation for the non-destructive quality assessment of agro-products 1493using vibration measurementsDe Ketelaere B., De Baerdemaeker J., K.U.Leuven, Belgium

Part II: Using high-resolution resonant frequency and damping estimators for the 1501non-destructive, on-line determination of the eggshell strengthDe Ketelaere B., Vanhoutte H, De Baerdemaeker J., K.U.Leuven, Belgium

XXIV

Nondestructive quality evaluation of fruits by acoustic impulse transmission 1507Hayashi S., Toyama Prefectural University, JapanSugiyama J., National Food Research Institute, Japan

Stochastic FE vibration analysis of fruits for quality measurement purposes 1515JancsokP., NicolaiB., De Baerdemaker J., K.U.Leuven, Belgium

Workshop: Animal welfareSession AGRAW

Development of a multi parametric sound analysis parameters as welfare indicator in 1523chicken flocksMairJ., University of Bonn, GermanyMarx G., FAL, GermanyPetersen J., Mennicken L., University of Bonn, Germany

Vocalisation analysis and physiological correlates during the castration of pigs 1529Marx G., FAL, Germanyvon Borell E., Horn T, Thielebein J., Martin-Luther-University Halle-Wittenberg, Germany

Fuzzy approach for improved recognition of pig-coughing from continuous registration 1535Van Hirtum A., Berckmans D., K.U.Leuven, Belgium

Noise analysis and possibilities for noise reduction of propeller fans in agricultural buildings 1543Vranken E., Berckmans D., Vermeir G., Lauriks W., K.U.Leuven, Belgium

Workshop: Machine performance and control; human safetyand comfortSession AGRMP

System for vertical boom correction on hilly fields 1551Anthonis J., Deprez K., Ramon H., K.U.Leuven, Belgium

Design of an active suspension to surpress the horizontal vibrations of a spray-boom 1559Anthonis J., Ramon H., K.U.Leuven, Belgium

Measurement of vibration power flow through the isolators of an agricultural tractor cab 1567Bollade L, CETIM, France

Proper excitation for the derivation of the best related linear dynamic system to describe 1575sprayer boom dynamicsClijmans L., Swevers J., K.U.Leuven, BelgiumSchoukens J., VUB, BelgiumRamon H., K.U.Leuven, Belgium

xxv

Design of a passive suspension for cabins of agricultural machinery 1583Deprez K, Ramon H., K.U.Leuven, Belgium

Vibro-acoustic analysis procedures for the evaluation of the sound insulation 1587characteristics of agricultural machinery cabinsDesmet W., Sas P., K.U.Leuven, Belgium

Spray deposit distribution from agricultural boom sprayers in dynamic conditions 1599HerbstA., Wolf P., Federal Biological Research Centre Braunschweig, Germany

Descriptive analysis of agricultural machinery cabin vibrations and their effect on the 1607human bodyHost ens I., Ramon H., K.U.Leuven, Belgium

Sensor data fusion for the measurement of horizontal sprayer boom displacement 1615Lebeau F., Destain M.-F., Gembloux Agricultural University, France

Modelbased signal processing of a combine harvester 1619Maertens K, De Baerdemaeker J., Ramon H., K.U.Leuven, Belgium

Vibration control using self-organising look-up tables 1625Moshou D., Ramon H., K.U.Leuven, Belgium

A study of wheelchair vibration characteristics ' 1633Papaioannou G., Hostens I., Ramon H., Spaepen A., K.U.Leuven, Belgium

Whole-body vibrations in forest harvesters-a review of relevant R&D issues 1639Tabell L., Swedish University of Agricultural Sciences, Sweden

A multibody dynamics approach of colliding particles 1647Van Staeyen K., Tijskens E., Ramon H., K.U.Leuven, Belgium

Simulation and measurements on the comfort of forklifts 1655Verschoore R., University Ghent, Belgium

Avoidance of lobe contour determined vibration at rotary pumps equipped with 1661clearance-volume-free profilesVogelsang H., Krampe P., Hugo Vogelsang Maschinenbau GmbH, GermanyTiirkM., Institut fur Agrartechnik Bornim ATB, Germany

XXVI

Late Papers

Dynamic identification of masonry buildings by forced vibration tests 1669Antonocci E., Unversita dell' Aquila, ItalyDe Sortis A., Servizio Sismico Nazionale, ItalyVestroni F., Universita di Roma "La Sapienza", Italy

Identification technique for flexible beam structures 1677ReynierM., Universite Paris X, France