Proceedings

of the

13th International

Modal AnalysisConference

FEBRUARY 13-16,1995SHERATON MUSIC CITY HOTEL

NASHVILLE, TENNESSEE

DIRECTOR:

Dominick J. DeMichele

SOCIETY FOR EXPERIMENTAL MECHANICS, INC.:

Kenneth A. Galione, Managing Director

Kristin L. MacDonald, Assistant Managing Director

Katherine M. Ramsay, Conference ManagerUNION COLLEGE

Dr. Helen Madden, Associate Director, Office of SpecialEvents, Conferences and Professional Development

Sponsored By:

SOCIETY FOR EXPERIMENTAL MECHANICS, INC.

Bethel, Connecticut 06801

and

UNION COLLEGE

Schenectady, New York 12308

Session 26. Design Methods

Simulating Golf Club Performance Using Modal Analysis 989

G.R. Thomas, T.A. Deiters, SDRC Engineering Services Division Inc. (USA);and C. Best, Cobra Golf, Inc. (USA)

The Use of Modal Analysis for Design Upgrade of a Magnetic Hair Clipper 996

I. Bagci and J.R. Houghton, Tennessee Technological University (USA)

xiii

Optimal Modification of Dynamic Systems with a Natural Frequency Constraint 1001

R.K. Srivastava, Motilal Nehru Regional Engineering College (India); and

T.K. Kundra, Indian Institute of Technology (India)

Frequency-domain Maximum Likelihood Method and Its Application in the

Identification of Aircraft Equivalent Flying Quality Parameters 1009

J.L. Ai and J.H. Deng, Northwestern Polytechnical University (P.R. China)

Session 27. Test/Analysis/Integration/Correlation II

Development of a General Pseudo Orthogonality Correlation Procedure 1013

J. O'Callahan, University of Massachusetts, Lowell (USA)

Case Histories of Test/Analysis Correlation Using Frequency Response Functions 1022

M.G. Donley and J. Bretl, Structural Dynamics Research Corporation (USA)

A Method for Identification of a Set of Optimal Measurement Points for

Experimental Modal Analysis 1029

T. Breitfeld, University of Stuttgart (Germany)

Sensitivity-based Model Updating Using Multiple Types of Simultaneous State Variables 1035

E. Dascotte, J. Strobbe, Dynamic Design Solutions n.v. (Belgium); and

H. Hua, University of Brussels (Belgium)

Loudspeaker Cabinet Bracing Analysis Using Analytical and Experimental Methods 1041

A.J. LaCombe, SDRC (USA)

Investigation of the Effects of Transducer Cross-Sensitivity and MisalignmentError on Modal Vector Correlation 1048

M. Mains and H. Void, Void Solutions, Inc. (USA)

Session 28. Modal Parameter Identification II

Detection of Mechanical Changes in Vibrating Systems 1057

J. Lardies, Universite de Franche-Comte (France)

Errors in Modal Parameter Identification Due to Mode Localization 1063

J.H. Yu and D. Allaei, QRDC, Inc. (USA)

A New Modal Identification Method Using an Advanced Characteristic

Response Function (ACRF) 1069

N.M.M. Maia, J.M.M. Silva and A.M.R. Ribeiro, Technical University of Lisbon (Portugal)

Modal Parameter Estimation for Flutter Testing Using Matrix Pencil Approach 1076

H. Ren and CM. Pei, Northwestern Polytechnical University (P.R. China)

Session 29. Modal Application to Vehicles

Development and Applications of Engine Dynamic Signal Monitoring and Diagnostic System 1081

J.S.Y. Tjong, Ford Motor Company (Canada); and Z. Reif, University of Windsor (Canada)

Modal Test on the Pininfarina Concept Car Body "Ethos 1" 1086

F. Lembregts, M. Brughmans, LMS International (Belgium); and F. Furini,Industrie Pininfarina (Italy)

xiv

Dynamic Enhancement of Moderate Vehicle Frame 1093

M.A. Nasser, Menoufia University (Egypt)

Applied Modal Analysis as a Basis for Remodeling of Large Structures 1100

K. Ahmed, Atomic Energy Authority (Egypt); and A. El-Khatib,Alexandria University (Egypt)

Modal Analysis of "Tong Gong" Cross Country Vehicle 1106

Y. Wu and K. Xiao, Chengdu University of Science and Technology (P.R. China)

Session 30. Structural Dynamics I

Resonance in Tall Building 1109

S.S. Law, Hong Kong Polytechnic (Hong Kong)

On the Uncertainty of Identification of Civil Engineering Structures Using ARMA Models 1115

P. Andersen, R. Brincker and P.H. Kirkegaard, Aalborg University (Denmark)

Studies on Influence of Cracks on the Dynamic Response of Tubular T-joints for

Nondestructive Evaluation 1122

D.I. Nwosu, A.S.J. Swamidas, Memorial University of Newfoundland (Canada);J.Y. Guigne, Guigne International Ltd. (Canada); and D.O. Olowokere,

University of Alabama (USA)

'TUTORIAL SESSION: Vibration Test Tailoring Versus Test Standards

Organized by: K.G. McConnell, Iowa State University of Science and Technology (USA)

From Field Vibration Data to Laboratory Simulation 1130

K.G. McConnell, Iowa State University of Science and Technology (USA)

Research Problems Associated with Limiting the Applied Force in Vibration Tests and

Conducting Base-drive Modal Vibration Tests 1131T.D. Scharton, California Institute of Technology/JPL (USA)

The Role of Force Measurements in Advanced Vibration Test Methods 1135D.O. Smallwood, Sandia National Laboratories (USA)

Session 31. Bridge Testing/Assessment IV

Organized by: A. Felber, EMPA (Switzerland)

Modal Analysis of a Highway Bridge: Experiment, Finite Element Analysis and Link 1141

Y. Deger, R. Cantieni, S. Pietrzko, EMPA (Switzerland); W. Ruecker and

R.G. Rohrmann, BAM (Germany)

Port Mann Bridge Modal Testing and Model Correlation; Part I: Experimental Testingand Modal Analysis 1150

A.J. Felber, Experimental Dynamic Investigations Ltd. (Canada); andC.E. Ventura, The University of British Columbia (Canada)

xv

Port Mann Bridge - Modal Testing and Modal Correlation; Part II: DynamicModeling and Correlation 1157

C.E. Ventura, The University of British Columbia (Canada); A.J. Felber, ExperimentalDynamic Investigations Ltd. (Canada); H.G.L. Prion, The University of British Columbia

(Canada); P.R. Taylor and A. Van Selst, Buckland and Taylor Ltd. (Canada)

Ambient Vibration Testing of a 32-Story Reinforced Concrete Building During Construction 1164

C.E. Ventura, N.D. Schuster, The University of British Columbia (Canada);and A.J. Felber, Experimental Dynamic Investigations Ltd. (Canada)

Traffic Response of a Bridge as Predicted from Modal-test Data 1171

F.J. Molina, University of Oviedo (Spain); R. Cantieni, and S. Pietrzko,EM PA (Switzerland)

Verification Tests of the Shear Capacity of Pinned Column-caisson Connections 1178M.A. Haroun, G.C. Pardoen and A.E. Salama, University of California-Irvine (USA)

Sessoion 32. Laser Techniques II

Organized by: E.P. Tomasini, University of Anacona (Italy)

Experimental Mechanical Intensity in Plates Using a Scanning Laser Doppler Vibrometer 1185

J.D. Blotter and R.L. West, Virginia Polytechnic Institute and State University (USA)

Modal Analysis of Plate Structures Using Digital Speckle Pattern Interferometry 1192

P. Slangen, Y. Lion, J.C. Golinval and M. Geradin, Universite de Liege (Belgium)

An Experimental, Laser-based Methodology for Reconstructing 3-D Structural Velocity Fields 1198

J.C. Lopez-Dominguez and A.L. Wicks, Virginia Polytechnic Institute

and State University (USA)

Vibration Measurements of Loudspeakers Diaphragms by a Laser Scanning Vibrometer 1205

G.L. Rossi and E.P. Tomasini University of Ancona (Italy)

Development of a Measurement Procedure for Non-invasive Detection of Frescoes' Detachments 1210

P. Castellini and N. Paone, University of Ancona (Italy)

Reconstruction of the 3-D Structural Velocity Field of a Vibrating Turbine Blade

Using a Scanning Laser Doppler Vibrometer 1214

J.C. Lopez-Dominguez and A.L. Wicks, Virginia Polytechnic Institute and

State University (USA)

Session 33. Experimental Techniques III

Road Noise Analysis of a Passenger Car: A Compilation of Results from OperatingData Analysis, Transmission Path Analysis and Suspension and Cavity Modal Analysis 1220

K. Wyckaert and H. Van der Auweraer, LMS International (Belgium)

Strain Analysis on Ductile Cast Iron Containers at Drop Tests 1225

A. Ettemeyer, Ettemeyer Qualitatssicherung (Germany); D. Schreiber, Gesellschaft

fur Nuklear Service mbH (Germany); and W. Volzer, Wissenschaftlich-Technische

Ingenieurberatung GmbH (Germany)

xvi

Estimation of Rigid Body Frequency Response Function Matrices via Redundant

Perimeter Reference Measurements 1231

D.E. Adams, D.L. Brown and R.J. Allemang, University of Cincinnati (USA)

Quality Control on Thousand Year Egg with Vibration Identification 1242

S.H. Yang, H.L. Chen and C. Wei, Industrial Technology Research

Institute (Taiwan, China)

Analysis and Prediction of the Modal Properties of a Hydroelastic Ship Model 1248

Y. Chen, A.S.J. Swamidas, Memorial University of Newfoundland (Canada);

B. Menon, Fleet Technology Limited (Canada); I. Datta, Institute for Marine

Dynamics (NRC) (Canada); A. Sterling, Department of Naval Defence (Canada)

Application of Flexibility Shapes to Sensor Selection 1255

M.C. Stabb and P.A. Blelloch, SDRC Engineering Services Division Inc. (USA)

Vibration Control Using Complex Modal Damping 1263

F.R. Gomaa, Menoufia University (Egypt)

Session 34. Modal Updating and Correlation II

Influence of the Number of Frequency Points and Resonance Frequencies on Modal Updating

Techniques for Health Condition Monitoring and Damage Detection of Flexible Structure 1273

J.A. Pereira, W. Heylen, Katholieke Universiteit Leuven (Belgium); S. Lammens,

LMS International (Belgium); and P. Sas, Katholieke Universiteit Leuven (Belgium)

Model Updating by a Two-level Gauss-Newton Approach with Line-searching 1282

G.H.T. Ng and J.E. Mottershead, University of Wales, Swansea (United Kingdom)

On Discretisation Error Estimates for Finite Element Model Updating 1289

J.E. Mottershead, M.I. Friswell and Y. Zhang, University of Wales,

Swansea (United Kingdom)

Practical Guide to High Accuracy Identification of Structural Damage in Complex Structures 1297

F.M. Hemez, Ecole Centrale Paris (France)

Design Sensitivity Model Correlation and Its Effect on Finite Element Model Internal

Load Responses 1305

A.E. Semple, Orbital Sciences Corporation (USA)

Evaluation of DOF Correlation Using the Coordinate Orthogonality Check 1313

F.J. Pechinsky, Raytheon Company (USA); and P. Avitabile, University of

Massachusetts, Lowell (USA)

Frequency-domain Based Approaches for Damage Detection and Localization in

Aeronautical Structures 1322

L. Balis Crema and F. Mastroddi, University of Rome "La Sapienza" (Italy)

Session 35. Modal Techniques Applied to Rotating Machinery II

Vibration Analysis of Bladed Disc Assemblies 1331

C. Minas and S. Kodiyalam, General Electric Corporate R&D (USA)

xvii

Experience in Rotor Balancing of Large Commercial Jet Engines 1338

J.L. White, M.A. Heidari and M.H. Travis, Boeing Commercial Airplane Group (USA)

Finite Element and Boundary Element Methods for Transient Acoustic Problems 1345

J.P. Coyette, Numerical Integration Technologies N.V. (Belgium)

Investigation of a New Type of Tuned Vibration Absorber for Application to Rotating Systems 1352

I. Redmond, Arabian Oil Company (Saudia Arabia)

On the Modal Analysis of Rotating Asymmetrical Rayleigh Beams 1362

R. von Hertzen, Helsinki University of Technology (Finland); and M. Jorkama,Valmet Paper Machinery Inc. (Finland)

Use of dFRFs for Separation and Identification of Travelling Wave Modes in Rotating Disk 1368

C.W. Lee and M.E. Kim, Korea Advanced Institute of Science & Technology (Korea)

Coupling Mechanisms Between Torsional and Transverse Vibration in ReciprocatingEngines and Compressors 1373

X. Li and B.J. Stone, The University of Western Australia (Australia)

Session 36. System Identification I

Employing Identification Procedures for the Detection of Cracks in Rotors 1378

S. Seibold, Universitat Kaiserslautem (Germany); OP. Fritzen, Universitat-

Gesamthochschule Siegen (Germany); and D. Wagner, Universitat Kaiserslautem

(Germany)

Modal Analysis for Damage Detection: Modal and Nonmodal Approaches 1385

M. Smart, University of Wales, Swansea (United Kingdom)

A Local Restoring Force Surface Method 1392

S. Duym, J. Schoukens and P. Guillaume, Vrije Universiteit Brussel (Belgium)

Localization of Damage in Structures by Analytical Model Improvement and

Strain Energy Balance 1400

N.G. Nalitolela, University of Dar es Salaam (Tanzania)

Spacecraft System Identification Using Science Instrument Optical Jitter Measurements 1407

J.W. Sills, Jr. Lockheed Technical Operations Company (USA)

Damage Location in Structures Using Vibration Data and Its Sensitivity to

Measurement Errors 1418

Z. Li and J.R. Houghton, Tennessee Technological University (USA)

A Tire Side Slip Model with Flexible Tire Carcass and the Identification of

Tire Structural Parameters 1425

K.H. Guo and J. Sui, Jilin University of Technology (P.R. China)

Session 37. Experimental Techniques IV

Impact Excitation of Torsional Vibration Systems 1432

S.J. Drew and B.J. Stone, The University of Western Australia (Australia)

xviii

Embedded Pile Length Determination by Controlled Random Excitation

S.J. Pardue and J.R. Houghton, Tennessee Technological University (USA)

1437

Accuracy of Dynamically Estimated Elastic Wood Constants 1444

D. Larsson, Chalmers University of Technology (Sweden)

Experimental Analysis of Turbine Blade Assembly Problem Using Telemetry Instrumentation 1451

B.L. Jaiswal, Bharat Heavy Electricals Ltd. (India)

Complex Modulus and Damping Measurements Using Resonant and Non-resonant Methods 1458

S. Gade, K. Zaveri, H. Konstantin-Hansen and H. Herlufsen, Bruel & Kjaer (Denmark)

Experimental Investigation for Dynamic Behavior of Welded Cracked Beam 1463

F.R. Gomaa, Menoufia University (Egypt)

Session 38. System Identification II

Selectively Sensitive Identification of Connectivity Matrices in Linear Elastic Systems 1474

Y. Freund and Y. Ben-Haim, Technion-lsrael Institute of Technology (Israel)

On the Rigid Body Properties Estimation From Modal Testing 1479

A.P.V. Urgueira, New University of Lisbon (Portugal)

A New Approach for Identification of Spatial Matrices by Using Measured FrequencyResponse Function Data 1484

A.R. Choudhury, J. He and G. Lleonart, Victoria University of Techology (Australia)

Effective Mass Sensitivities in Structural Dynamics Modification 1490

A. Paolozzi, I. Peroni and P. Ciccolini, University of Rome "La Sapienza" (Italy)

Detection of Damage Location Based on Sensitivity Analysis 1499

H.F. Lam, J.M. Ko and C.W. Wong, Hong Kong Polytechnic (Hong Kong)

Session 39. Test/Analysis/Integration/Correlation III

A Test-Analysis-Matrix (TAM) with Improved Dynamic Characteristics 1506

S.S. Bhatia and R.J. Allemang, University of Cincinnati (USA)

Mass and Stiffness Orthogonality Checks Without A Mass or Stiffness Matrix 1515

P. Avitabile and J.C. O'Callahan, University of Massachusetts, Lowell (USA)

The Damage Indices for the Constructed Facilities 1520

Z. Zhang and A.E. Aktan, University of Cincinnati Infrastructure Institute (USA)

A Genetic Algorithm for Optimally Selecting Accelerometer Locations 1530

M. Stabb and P.A. Blelloch, SDRC Engineering Services Division Inc. (USA)

Applying Dynamic Test Simulations and Modal Analysis for Finite Element

Verification in the Design of the Ryobi 24 VDC Mulching Lawn Mower 1535S. Fisher and J. Nosko, Ryobi Motor Products Corp. (USA)

Finite Element Model Reconciliation with Dynamic Response Data Using a

Statistics-based Parameter Update Approach 1540B. E. Lindholm and R.L. West, Virginia Polytechnic Institute and State University (USA)

xix

Session 40. Modal Industrial Applications

Modal Investigation of an Oil Sump Line in a Dual Pump Situation Using Modal

Analysis as Well as H and P Methods of Finite Element Modeling 1547

J.G. Zibas, D.J. Lambert and O. Derakhshan, Tennessee Technological University (USA)

Stability and Control of Multi-stand Cold Roll Mills 1553

T.R. Comstock and W. Buyck, The University of Tennessee at Martin (USA)

The Response of Electrical Machine Stators to Magnetic Forcing 1563

S.D. Garvey, Aston University (United Kingdom); M.I. Friswell, University of Wales,Swansea (United Kingdom); and J.E.T. Penny, Aston University (United Kingdom)

Improving the Static and Dynamic Performance of Overhang Boring Bars 1570

M.A. Nasser, Menoufia University (Egypt)

The Chatter Vibration Simulation Studies of the 80" Continuous Cold Rolling Strip Mill 1578

J. Zou, M. Sun, Z. Sun, University of Science & Technology Beijing (P.R. China);and D.X. Zou, Italimpianti of America, Inc. (USA)

The Study of Vertical Self-excited Chatter of Continuous Cold Rolling Strip Mill 1585

J. Zou, University of Science & Technology Beijing (P.R. China); L. Xu, Baoshan

Iron and Steel Corp. (P.R. China); H. Xing, X. Shi, University of Science & TechnologyBeijing (P.R. China); R. He, Baoshan Iron and Steel Corp. (P.R. China); and

D.X. Zou, Italimpianti of America, Inc. (USA)

Session 41. Design Methods

Papers moved to Session 26

Session 42. Substructuring

FRF Substructure Synthesis: Evaluation and Validation of Data Reduction Methods 1592

L. Bregant, Katholieke Universiteit Leuven (Belgium); D. Otte, LMS International

(Belgium); and P. Sas, Katholieke Universiteit Leuven (Belgium)

A Method of Evaluating Joint Parameters Application to Structural Modifications 1598

F. Llorca, Universite Bordeaux I LMP (France); D. Hennequin, CEA-CESTA (France);A. Gerard, Universite Bordeaux I LMP (France); and D. Brenot, CEA B3 (France)

Correction of Transducer-loading Effects in Experimental Modal Analysis 1604

J. Decker and H. Witfeld, University of the Federal Armed Forces Hamburg (Germany)

A Three-dimensional, Multi-step Substructure Coupling Method Based on FrequencyResponse Functions with Control of the Statistical Measurement Error 1609

J. Bienert and H. Witfeld, University of the Federal Armed Forces Hamburg (Germany)

The Global Fuzzy Identification for Modal Parameter 1615

L. Gu, F. Sun and Q. Hu, Beijing Institute of Technology (P.R. China)

Large Scale Unsymmetric Eigenvalue Problem in Structural Dynamics 1622

Z.C. Zheng and G. Ren, Tsinghua University (P.R. China)

xx

Session 43. Analytical Methods III

An Improved Dynamic Stiffness Method for Modal Analysis of Branched Beam-like Structures 1630

S.L. Chen, J.C. Golinval and M. Geradin, University of Liege (Belgium)

Modal Sensitivities of Eigensystem with Repeated Eigenvalues 1634

T.Y. Chen, National Chung Hsing University (Taiwan, China)

The Location of Damage from Vibration Data Using Genetic Algorithms 1640

M.I. Friswell, University of Wales, Swansea (United Kingdom); J.E.T. Pennyand G. Lindfield, Aston University (United Kingdom)

A Study on a Time-domain Identification Method for Structural Physical Parameters 1647

W. Sha and Z. Hu, Jilin University of Technology (P.R. China)

Nonstationary Response of Accelerating Aircraft on Rough Runway 1653

M. Sun, G. Yao and T. Fang, Northwestern Polytechnical University (P.R. China)

Session 44. Modal Updating and Correlation III

Model Improvement and Correlation of the Pegasus XL Launch Vehicle via Modal Testing 1659

R.D. Brillhart, C. Johnson, T.A. Deiters, SDRC Engineering Services Division Inc.

(USA); and M. Bies, Orbital Sciences Corporation (USA)

Design Modification with Experimental Based Structural Models 1666

C.H. Chu, M.W. Trethewey, The Pennsylvania State University (USA); and

J.A. Cafeo, General Motors Research (USA)

Structural Health Assessment Using a Partition Model Update Technique 1673

M. Kaouk, University of Florida (USA); and D.C. Zimmerman, Universityof Houston (USA)

Correlation of Test and Analysis Results for Alternating Current Machines 1680

M. Shimizu, Meidensha Corporation (Japan)

Session 45. Modal Application to Aircraft Structures

Modal Analysis of PATHFINDER Unmanned Air Vehicle 1687

T.G. Woehrle, B.W. Costerus and C.L. Lee, Lawrence Livermore National

Laboratory (USA)

A Case Study on Modal Analysis of a Glider Wing 1694

A. Subic, University of Ballarat (Australia); and J. He, Victoria Universityof Techology (Australia)

Modal Analysis on a One Third Scaled Down Aircraft Frame 1701

S. Nadeau, Y. Champoux, J.M. Guerin and F. Charron, Universitede Sherbrooke (Canada)

Modal Correction Method for Dynamically Induced Errors in Wind TunnelModel Attitude Measurements 1708

R.D. Buehrle, NASA Langley Research Center (USA); and CP. Young, Jr.,North Carolina State University (USA)

xxi

Analysis on Natural Frequency Distortion Due to the Attachment of Shaker 1715

S. Han, Kyungnam University (Korea)

Assumed Mode Method of Empennage Flutter Analysis for an Aircraft 1722

Z.C. Yang, J. Liu and L.C. Zhao, Northwestern Polytechnical University (P.R. China)

Session 46. Instrumentation and Measurement Techniques

A Combined Neural and Genetic Approach to Sensor Placement 1727

K. Worden, A.P. Burrows and G.R. Tomlinson, University of Manchester

(United Kingdom)

A Virtual Instrument Random Signal Generator 1737

J.R. Mast, National Instruments (USA); and R.R. Craig, Jr., The University of

Texas at Austin (USA)

Laboratory Studies of Acoustic Emission During Coal Cutting 1743

H.R. Hardy, Jr., H.W. Shen and E.J. Kimble, Jr., The PennsylvaniaState University (USA)

A Study on Synchrotron Light Stability Using Vibration Measurement and Modal

Testing Techniques 1756

H,D. Hsieh and S.H. Yang, Industrial Technology Research Institute (Taiwan, China)

Session 47. Analytical Methods IV

Reduction of Junction Degrees of Freedom in Certain Methods of DynamicSubstructure Synthesis 1763

K. Brahmi, N. Bouhaddi and R. Fillod, Universite de Franche-Comte (France)

Optimum Locations for Structural Modifications 1770

Y.M. Xie, J. He, Victoria University of Technology (Australia); and G.P. Steven,

University of Sydney (Australia)

On the Readability of a Travelling Wave Linear Motor 1778

W.E. Seemann and P. Hagedorn, University of Darmstadt (Germany)

The Determination of Physical Parameters in Structural Dynamic Modes 1785

X. Zhan, Jiangsu Institute of Technology (P.R. China); and D. Luo, East China

Shipbuilding Institute (P.R. China)

Method and Accuracy of Non-conservative Coupling Loss Factors Measurement 1792

J. Zhang, S.F. Zhou, S.M. Li, X.J. Meng, Shandong Institute of Engineering(P.R. China); and L.M. Song, North Jiaotong University (P.R. China)

Acoustico-elastic Vibration and Stability Analysis of Curved Pipes Conveying Fluid 1799

L. Li, Beijing University of Aeronautics and Astronautics (P.R. China)

Session 48. System Identification III

Simulation Results, Including Noisy Data, for a New Substructure SystemIdentification Method 1805

W.K. Cutshall, Southwest Research Institute (USA); and R.R. Craig, Jr.,The University of Texas at Austin (USA)

xxii

Identification of Truss Structures Having Non-uniform Distribution of Stiffness and Mass

B.U. Gangla and S.W. Smith, University of Kentucky (USA)

1812

Acoustic System Identification by Dispersive Analysis and The Boundary Element Method 1819

Y. Dai, G.P. Gibbs and C.R. Fuller, Virginia Polytechnic Institute and

State University (USA)

Experimental Investigation of Lap-joint Dynamics 1826

M. Feldman and Y. Ben-Haim, Technion-lsrael Institute of Technology (Israel)

Optimized and Improved Input Signals for Parameter Identification 1832

D. Jennewein and CP. Fritzen, University of Siegen (Germany)

Addendum

(Papers listed in the Addendum are ones which were submitted after the printer's deadline.

Therefore, these papers could not be listed under the appropriate session titles.

Development of Integrated System for Environmental Vibration Testing - Towards Tailoring 1839

J. Leuridan, LMS International (Belgium) (Tutorial Session)

Assessing the Risk of Shock and Vibration Induced Damage to Operating Offshore Platforms 1840

M.E. Martinez, F. Tallavo, INTEVEP, S.A. (Venezuela); and D.J. Ewins,Imperial College of Science, Technology and Medicine (United Kingdom) (Session 30)

Experimental Evaluation of Vibrations in an Operating Offshore Platform 1847

F. Tallavo, M.E. Martinez, INTEVEP, S.A. (Venezuela); and D.J. Ewins,Imperial College of Science, Technology and Medicine (United Kingdom) (Session 30)

Using the Scaled Total Least Squares Method and the Unified Matrix PolynomialApproach for Condensing the Perturbed Boundary Condition Test Data 1853

S. Li, D.L. Brown, University of Cincinnati (USA); and H. Void, Void

Solutions, Inc. (USA) (Session 2)

Design Health Monitoring of Mechanical Dynamic Structures 1861

R.S. Ballinger and D. Herrin, University of Kentucky (USA) (Session 7)

Energy Quotient Method for Design Optimization of a Frequency-constrainedMechanical Dynamic Structure 1869

R.S. Ballinger and D. Herrin, University of Kentucky (USA) (Session 26)

Application of Filter Techniques for Damage Detection in Linear and Non-linearMechanical Structures 1874

CP. Fritzen, University of Siegen (Germany); S. Seibold, Universityof Kaiserslautern (Germany); and D. Buchen, University of Siegen(Germany) (Session 38)

xxiii