MS00 - General Session on Dynamics, Stability and Structural Vibrations

V. Gattulli, F. Romeo, F. Vestroni

The general session is devoted to all aspects of structural dynamics and stability not directly covered by the thematic minisymposia. Theoretical as well as experimental investigations, including state-of-the-art surveys, focusing on fundamental and interdisciplinary problems on vibrations of interest for civil and mechanical engineering applications are welcome. Contributions addressing open general problems, such as model reduction or structural damping modeling, are suitable for this session.

MS01 - Advances in Computational Dynamics of Structures

D. Duhamel, S. Natsiavas

Papers are solicited in all areas related to theoretical and computational aspects of dynamics, vibration, identification, control and optimization of structures and multibody systems. Appropriate topics relevant to the symposium include the following: dynamic modeling and vibration of structural elements; advanced computational methods for large scale linear and nonlinear structures (advances in finite element methods, boundary element methods, meshless methods, X-FEM, discrete elements, multi-scale methods, multi-level dynamic substructuring methods); techniques involving parallel processing/computing, high performance computing; application of numerical techniques in studying nonlinear dynamics of beams, arches, cables, plates and shells; dynamic systems involving clearances, impacts and friction; dynamics of micro-scale systems; stability and bifurcation analysis of piecewise linear systems and structures, dynamic response of hysteretic systems; vibration absorbers; rotordynamics of systems with bearing clearances and gear backlash; system identification methods and applications; damage identification methods; active and passive structural damping; smart structures; applications of smart sensors and actuators; optimal sensor and actuator location methods; multi-objective optimization.

MS02 - Advances in Dynamical Experimental Techniques

E. Caetano, J. Macdonald

This mini-symposium covers all aspects of advances in dynamic experiments, which may be at any scale, from the nano to large civil engineering structures. Experiments may be conducted for different purposes including validation of theory or investigation of new phenomena in research, product development, certification, seismic qualification, model updating or damage detection. The various types of test may involve shaking tables, wind tunnels, pseudo-dynamic tests, electrical or hydraulic actuators, in-situ monitoring and testing, ground vibration tests or in-flight tests. Topics covered by the MS will include: design of experiments, novel test rigs, methods of excitation, experimental control, MIMO testing, instrumentation and signal conditioning, integration of sensor systems, including wireless sensors, non-contact measurements, signal processing, dealing with noise and uncertainty, experiments on nonlinear dynamic systems, and interpretation and use of experimental results. Papers on novel experimental approaches such as dynamic substructuring / hybrid testing / hardware-in-the-loop and experimental continuation are also very welcome.

MS03 - Non-linear Dynamics

J. Naprstek, G. Rega

The scope of the mini-symposium is focused on the new developments in non-linear dynamics of single- and multi-degree of freedom systems as well as of systems with continuously distributed parameters. Papers are welcome of theoretical, experimental and applied nature. The character of the mini-symposium is broad and includes papers of mathematical background, dynamic stability of discrete and continuous systems (smooth/non-smooth), deterministic and random systems subjected to additive/multiplicative excitation or exhibiting self-exciting vibrations. Solutions employing analytical, semi-analytical, or numerical approaches are expected. Experimental studies as verification of theoretical results or primary research at various scales including nano-mechanics are of the particular interest. Especially welcome are papers on recent and ongoing research as well as papers of multi-disciplinary nature. Papers may include investigations of Hamiltonian/non-Hamiltonian, holonomic and non-holonomic systems-interaction, auto-parametric systems, post-critical processes, limit cycles and homo/hetero-clinic orbits, non-linear normal modes, stochastic resonance phenomena, harmonic synchronization, quasi-periodic and other inter-resonance processes, basins of attractors, maps, chaotic behavior, etc.Papers dealing with application in physics and engineering area including case studies and technical development support, interaction with other areas are notably invited for submission. It is expected that both the classical fields of civil and mechanical engineering and the emerging areas of micro and bio-mechanics will be addressed.

MS04 - System Identification

J.P. Conte, A. Morassi, C. Papadimitriou

The mini-symposium deals with system identification methods and applications. It covers theoretical and computational issues, applications in structural dynamics, earthquake, civil, mechanical and aerospace engineering, as well as other related engineering disciplines. Topics relevant to the mini-symposium include: theoretical and experimental modal identification, operational modal analysis, linear and nonlinear system identification, data-driven uncertainty quantification and propagation techniques, statistical system identification methods (maximum-likelihood, Bayesian inference, hierarchical Bayesian modeling) and Kalman-type filtering techniques for parameter, input and state estimation, linear and nonlinear finite element model updating/validation and correlation, uncertainty quantification in model selection and parameter estimation, stochastic simulation techniques for state estimation and model class selection, health monitoring and condition assessment based on system identification and finite element model updating, optimal strategies for experimental design, optimal sensor and actuator location methods, applications to identification of structural flaws and structural reliability predictions using data. Papers dealing with experimental/field investigation and verification of theories are especially welcome.

MS05 - Recent Advances in Stochastic Structural Dynamics

M.Hanss, I.A. Kougioumtzoglou, A. Pirrotta

The objective of this MS is to present recent advances and emerging cross-disciplinary approaches in the field of stochastic structural dynamics. Further, this MS intends to provide a forum for a fruitful exchange of ideas and interaction among diverse technical and scientific disciplines. Specific contributions related both to fundamental research and to engineering applications of computational stochastic dynamics and signal processing methodologies are welcome. A non-exhaustive list includes joint time/space-frequency analysis tools, spectral analysis/estimation subject to highly incomplete/sparse data, efficient high-dimensional functional representation and identification, stochastic/fractional calculus modeling and applications, nonlinear stochastic dynamics, stochastic stability and control theory, multi-scale/multi-physics stochastic modeling and analysis, stochastic model/dimension reduction techniques, Monte Carlo simulation methods, and risk/reliability assessment applications.

MS06 - Reliability, Robustness and Design of Complex and Dynamical Engineering Systems

I. Au, J. Beck, H. Jensen

Analysis and design of complex and dynamical systems require crucial engineering decisions under considerable uncertainty. System performance predictions may be sensitive to modeling and excitation uncertainties. Experience in a number of engineering disciplines reveals the necessity to quantify and manage uncertainties in analysis and design in order to keep project risks in check and system performance accountable. The proper use of analysis and design procedures that explicitly treat uncertainties generally enhances the reliability and robustness performance of systems, allowing risk-informed decisions to be made. This mini-symposium aims to address the latest progress on approaches and methods for quantifying the reliability and robustness of complex and dynamical engineering systems and for designing such systems for uncertain operating conditions. The topics to be covered include, but are not limited to: uncertainty quantification, propagation and management; reliability estimation; robustness measures; reliability-based design; system identification; sensitivity analysis; robust solutions and predictions; meta-models for uncertainty quantification; health monitoring; and multi-objective optimal design. Both theoretical developments and applications involving systems of engineering interest are particularly welcomed.

MS07 - Uncertainty Quantification and Reliability Analysis in Structural Dynamics and Coupled Systems

R. Ghanem, M. Mignolet, C. Soize

The mini-symposium is devoted to the probabilistic and statistical methodologies for uncertainty quantification and reliability analysis in computational structural dynamics and coupled systems such as soil-structure interaction, fluid-structure interaction, structural acoustics, etc. The mini-symposium concerns theoretical methods, modeling, numerical and computational simulations, data analysis, experimental identification. Any applications for linear and nonlinear problems, as well as multiscale problems are relevant for this mini-symposium.

MS08 - Fluid-Structures Interaction

R. Ohayon, A. Metrikine

This mini-symposium encompasses the mechanical modelling, numerical simulation and experimental observations in the areas of Hydroelasticity, Aeroelasticity, Vibroacoustics and Biomechanics. Contributions are invited which are devoted to the direct modelling and physical interpretation of the coupled dynamical problems of fluid-solid interaction, the identification of the interface forces, and to the passive and adaptive control of structures, tissues, fluids and radiated sound.

MS09 - Vibro-Acoustics

J. Antoni, S. Sorokin

The interaction of elastic waves in structures with adjacent media is a classical research subjects being actively explored for decades. The goal of this mini-symposium is to provide a forum for researchers in this field to discuss recent advances and challenges in modelling and analysis of performance of structures exposed to either heavy or light fluid loading. Topics to be covered by this mini-symposium include, but are not limited to:
  • Wave propagation in infinite structures under heavy fluid loading
  • Forced vibration of and sound emission from finite structures
  • Wave propagation in porous air- or fluid-saturated materials
  • Periodicity and localisation effects in vibro-acoustics
  • Nonlinear effects in vibro-acoustics
  • Wave finite element method for multi-component waveguides and its spin-offs
  • Asymptotic methods in analysis of dynamics of structures under heavy fluid loading
  • Experimental vibro-acoustics

MS10 - Dynamics of Materials

G. Bonnet, C. Boutin, S. Lenci, R. Massabò

The MS is aimed at gathering together people working on various aspects of the dynamics of materials. Theoretical, numerical and experimental works focusing attention on the aspects of the mechanics of materials mainly influenced by the dynamical behaviour are solicited. Micro- as well as macro-mechanics approaches are within the scopes of the MS. A non-exhaustive list of topics includes:
  • Theoretical modelling
  • Homogenization
  • Experimental investigations
  • Linear and nonlinear dynamics of new materials
  • Mechanical properties
  • Thermal properties
  • Acoustical properties
  • Porous materials
  • Wave propagation
  • Smart materials
  • Composites
  • Micro-Electro-Mechanical-Systems (MEMS)
  • MS11 - Waves in Solids

    F. Lanza di Scalea, A. M. Samsonov

    This mini-symposium will covers theoretical, numerical and experimental studies of wave propagation in solids. Pioneering experimental and theoretical results on linear and nonlinear, bulk, surface and guided waves in solids and structures will be the most welcome for our audience. We are looking for contributions devoted to mathematical and physical modeling of waves in dynamic lattice systems, to dynamics of condensed matter, nonlinear waves and bulk soliton equations etc. Applications of interest include material characterization, acoustic metamaterials, non-destructive evaluation, structural health monitoring, numerical simulation methods for 2D and 3D problems. Advances in these applications are sought also in porous elastic and composite materials in various spatial scale from macro- to nano-solids , and in both linear and nonlinear wave propagation problems.

    MS12 - Vibration Control and Mitigation

    F. Casciati, J. Rodellar

    Structural control is a broad area of research with sound theoretical bases and focus on experimental and numerical methods. EURODYN is promoting a periodical update of the scientific and technical efforts in civil, mechanical and aerospace engineering. Contributions on active and semi-active control are encouraged for this mini-symposium, but significant implementations of passive control solutions are also welcome.

    MS13 - Damage Detection

    H. Chatzi, G. De Roeck

    This special session covers theoretical, computational and experimental work on vibration based damage detection with applications in structural dynamics, earthquake, civil, mechanical, aerospace and related engineering fields. Most often, the preceding step of damage assessment is (operational) modal analysis based on linear/nonlinear system identification. Emphasis in this session is on the exploitation of Structural Health Monitoring results: damage identification, prediction of structural fatigue and deterioration, and evaluation of repair operations. The four levels damage assessment will be addressed: alarm level, damage localization, damage severity and prediction of remaining lifetime. The influence of measurement errors and model uncertainty on damage predictions will be assessed. Also welcome are contributions related to the development of new sensor types trying to increase the sensitivity of the dynamic features to damage.

    MS14 - Structural Health Monitoring

    A. Cunha, P. Omenzetter

    This mini-symposium covers recent developments and state-of-the-art in theoretical, computational, experimental and practical aspects of structural health monitoring with applications to broadly defined structural systems encountered in the civil, geotechnical, transportation, earthquake, wind, marine, mechanical, aerospace and related engineering fields, such as bridges, buildings, dams, towers, wind turbines, offshore and subsea structures, pipelines, foundations, geotechnical structures, railway tracks, road pavements, composite structures, machinery, aircraft, spacecraft, etc. Topics include, but are not restricted to, the following:
    • System identification for damage detection and localisation
    • Operational modal analysis
    • Treatment of environmental and operational effects such as temperature
    • Guided waves and other forms of active sensing for damage detection
    • Acoustic emission
    • Novel and improved sensors
    • Wireless sensors and communications
    • Optimal sensor placement
    • Uncertainty assessment of monitoring results
    • Value of information derived from monitoring
    • Design of optimal monitoring strategies
    • Calibration of finite element models by inverse techniques
    • Prediction of structural fatigue and deterioration
    • Evaluation of effectiveness of repair operations
    • Integration of monitoring data with structural reliability and risk assessment
    • Structural control to mitigate vibration problems, and
    • Case studies, practical and industry applications and lessons learnt

    MS15 - Dynamic Soil-structure Interaction and Seismic Wave Propagation

    D. Clouteau, A. Metrikine, G. Müller, J.F. Semblat

    This Mini-symposium focuses on the dynamic interaction between structural vibrations and wave propagation in unbounded and bounded media. The aim is to share recent developments in mechanical and numerical modeling, the experimental identification of properties and in experimental evidence. Relevant topics include, e.g., the effects related with uncertainties on the data, non-linear behavior of materials and interfaces, scattering of waves in heterogeneous media and at structures in the propagation medium, effects of incident waves, simplified models and homogenisation techniques for studying wave propagation in complex media.

    MS16 - Blast and Impact Loads

    N. Gebbeken, Q. Li

    Impact and blast loads are intensive dynamic loads that may happen due to various causes in a wide range of engineering fields. This symposium covers structural responses to all types of impact and blast loads arose from accidents, natural disasters and designated actions. It includes, but is not restricted to
    • Structural crashworthiness
    • Penetration and perforation mechanics
    • Impact mechanics of natural disasters
    • Structural dynamics under impact loading
    • Structural dynamics under blast loading
    • Structural behaviour under shock environment

    MS17 - Moving Loads

    T. Mazilu, K. van Dalen

    The field of the moving load dynamics is very large and has many technical applications, particularly in transportation engineering. The railway tracks, roads, tunnels, bridges and viaducts and also the overhead lines used to transmit electrical energy to trains, trams and trolleybuses are the most representative elastic structures which have to support the moving loads and also interact with the trains, vehicles and current collectors, respectively. The dynamic effects in elastic structures induced by moving loads are of high relevance both for the safety and functionality of transport. This mini-symposium particularly focuses on the modelling and in-depth understanding of the following fundamental issues in civil and mechanical engineering:
    • moving loads on systems that have a variation of elastic properties in longitudinal direction such as railways; the variation can be periodic due to the presence of sleepers, for example, or aperiodic due to transitions in soil properties or the track support structure;
    • modelling and analysis of the vehicle/road interaction;
    • train (vehicle)/bridge interaction – modelling and dynamic effects;
    • dynamic of underground tunnels and environmental impact;
    • the interaction of moving bodies and elastic structures, which may lead to instability;
    • frictional contact problems between moving bodies and elastic structures;
    • non-smooth dynamics of granular materials embedded in structures under the excitation of moving loads;
    • pantograph-catenary interaction modelling and analysis;
    • tribological aspects of pantograph-catenary interaction.
    Contributions outside these specific focal issues are also very welcome.

    MS18 - Traffic Induced Vibrations (Road, Railway, Subway)

    G. Degrande, G. Lombaert, G. Müller

    This minisymposium focuses on environmental vibrations due to road and railway traffic at grade and in tunnels. Contributions are invited that deal with experimental as well as numerical studies from researchers, permanent way owners, engineering consultants, and industry. Topics relevant to the minisymposium include: numerical, empirical, and combined numerical-empirical prediction models, assessment of prediction uncertainty, parameter estimation problems for prediction models, excitation mechanisms of traffic induced vibrations, dynamic vehicle-track interaction, transmission of vibrations and wave propagation in the soil, including in situ testing for the identification of dynamic soil characteristics, vibrations and re-radiated noise in buildings, and the development and implementation of mitigation measures at the source, on the transmission path and at the receiver.

    MS19 - Human Induced Vibrations and Vibration Serviceability

    L. Bruno, A. Pavic

    Contributions addressing experimental and/or numerical/analytical work relating to characterising human-induced loading, human-structure interaction and human perception of vibration are invited. MS19 provides the opportunity to present papers about the vibration serviceability of civil engineering structures, especially excitation caused by human movement. It aims to present the latest scientific developments related to the key vibration serviceability issues. Relevant topics include characterisation of vibration source (e.g. pedestrian activities and traffic), vibration path (modelling of mass, stiffness, damping, SDOF, MDOF, simple or complex models etc.) and vibration receiver (e.g. humans or sensitive processes as receivers in various environments and design scenarios).

    MS20 - Bridge Dynamics

    R. Betti, Y. Fujino, H. Xia

    This mini-symposium focuses on recent developments regarding the structural behaviour of bridges under different types of dynamic loads. Experimental and numerical assessment, monitoring and control of these structures under seismic, wind or moving loads will be discussed. In addition, bridge monitoring as an instrument for efficient stock management is a topic of interest for a proper life cycle assessment of bridges. Papers dealing with innovative procedures in real applications are especially welcome. The topics to be covered include, but are not limited to: wind-resistant design; seismic retrofitting; vehicle-bridge interaction; non-linear dynamics; risk assessment and bridge monitoring; bridge response to natural hazard and environment condition; effective stock management; failure prevention; vibration-based damage detection; vibration problems and control; structural damping; wind tunnel tests and analyses.

    MS21 - Wind Induced Vibrations of Slender Structures

    V. Denoel, F. Perotti

    This mini-symposium covers recent developments and state-of-the-art knowledge in the dynamics of slender structural elements and systems, under aerodynamic and aeroelastic excitation. Of interest are systems as ropes, cables, beams, thin shells, bridges, footbridges, towers, masts, large canopies, tall buildings, wind turbines, sport stadia. The excitation mechanisms to be considered cover steady and transient flows interacting at different levels with the structures. Design winds (in the sense of codes and standards), exceptional winds such as tornadoes and bursts, or air flows resulting from industrial activities are expected to provide interesting contributions. As a first topic, contributions are welcome on mechanical modelling focusing, for instance, on advanced models leading to a better insight into complex structural behaviour, such as structural and additional damping, damage accumulation, fatigue, structural nonlinearities, response to transient wind loads. A second topic concerns the modelling and understanding of fluid-structure interactions, through the development of CFD techniques, wind tunnel experiments or real-scale testing. At last but not least, the mini-symposium also welcomes discussions on procedures for response computation. Among others, some interesting topics cover the consistent development of design approaches based on equivalent static loads and the effect of uncertainties on the dynamic response, with special attention to serviceability issues and to mitigation strategies.

    MS22 - Dynamics of Wind Energy Plants

    C. Baniotopoulos, C. Borri

    Wind energy structures (on- and off-shore) have recently reached very large dimensions (supporting towers height > 100m, rotor diameters > 120m) and are therefore extremely sensitive to dynamic excitations (from wind, waves, earthquake, etc.) The Minisymposium will address all major issues related with on-shore and off-shore wind energy structures (WES) and their main features. The implementation of small size WES for urban developments (smart cities) will also be addressed. More specifically, following topics will be faced, with the main objective of delivering of a complete state-of-the-art picture about the dynamic behaviour of WES:
    • wind mapping (site assessment) and analyses of the turbulence features
    • wind-structure dynamic interaction on WES elements (tower, rotor blades)
    • wind-soil-structure interaction (on-shore structures), including seismic actions
    • off-shore structures: wind-wave-structure dynamic interaction, "ringing" phenomena (dynamic amplification), nonlinear waves
    • dynamics of platforms, mooring lines and risers (off-shore floating WE plants)
    • fatigue problems
    • WES for the urban built environment towards smart future cities.

    MS23 - Vehicle Dynamics

    J. Ambrosio, J. Edelmann, M. Ploechl

    Since engineers made efforts to improve vehicle dynamics, the need to model and better understand the development and effects of the contact forces between wheels and ground became obvious. Structural and vehicle dynamics became closely related and have been developed further by fertilising each other. As an early example, wheel shimmy as a self-exited motion, is mentioned, that adverse effects gave birth to the first tyre models and required to include the structural properties of the support of the wheel and axle. This Minisymposium addresses the interaction of structural dynamics and vehicle dynamics of ground based vehicles, such as road vehicles, rail vehicles, and two-wheeled vehicles. To separate from isolated structural design matters of single vehicle components, the focus is set on respective effects on the longitudinal, lateral and vertical dynamic behaviour of the full vehicle. Specific topics will depend on the type of vehicle addressed, but may include stability of motion, vehicle handling/performance, NVH, and the application of control methods.

    MS24 - Dynamic Testing and Monitoring of Historic Structures

    S. Atamturktur, C. Gentile

    The development of practical methods for non-destructive testing, assessment and preventive conservation of Cultural Heritage Structures is of primary concern in many countries all over the world, especially in seismic prone areas. Within this context, dynamic tests in operational conditions are quickly increasing in diffusion and importance. The MS24 Mini-Symposium is intended to focus on methodological aspects, recent developments and applications of vibration testing and continuous dynamic monitoring of historic structures (e.g. monuments, churches, towers, historic bridges and infrastructures). Suitable topics include, but are not limited to, the following:
    • Multi-disciplinary approaches to the preventive conservation and Structural Health Monitoring, including dynamic testing and/or continuous monitoring;
    • Experimental investigations (using conventional or innovative sensors or dense sensor networks for meso-scale Structural Health Monitoring);
    • Vibration-based post-earthquake and seismic assessment;
    • Design and management of dynamic monitoring systems;
    • Damage assessment under changing environment;
    • Vibration-based tuning of FE model.

    MS25 - Energy Sink and Energy Harvesting

    G. Bartoli, C. Bowen, O. Gendelman

    Control and utilization of energy flows has continued to be one of the most significant problems facing engineering, both in a scientific and practical aspect. Over last two decades, the idea of energy sinks for the purpose of vibration absorption and mitigation has attracted wide attention. In addition, the continuing need for reduced power requirements for small electronic components, such as wireless sensor networks, or autonomous sensors has prompted interest in energy harvesting technologies capable of capturing energy from ambient sources such as mechanical vibrations, waste heat, wind and body motion. There is also a growing demand to exploit new renewable energy sources by harvesting energy from several different ambient dynamics, which would otherwise be lost. This mini-symposium invites abstracts that cover a wide range of energy absorption and mitigation techniques, as well as energy harvesting technologies - from materials to systems. Examples include systems that are purely mechanical, or explore the dynamics of piezoelectric, electromagnetic, electrostatic and thermoelectric systems along with potential hybrid systems for harvesting a variety of sources. Dynamics can include, but is not limited to, developing broadband energy sinks and harvesting devices, exploiting specific vibrational modes and novel approaches to storage and conditioning of electrical energy.

    MS26 - Performance-based design of dynamically excited structures

    P. Franchin, A. Giaralis, F. Petrini

    Initiated within the Earthquake Engineering community, the Performance-Based Engineering (PBE) matured over the past two decades into a powerful framework for the design of new and for the assessment of existing structures exposed to different types of dynamic loads (for example, due to the action of wind, waves, and earthquakes). Importantly, it allows for treating the input excitation and structure uncertainty in a rational manner and enables the quantification of risk to different failure modes, expressed through appropriate performance variables and criteria, and at different excitation intensities, expressed through scalable intensity measures of the input hazard, in multi-hazard environments. This MS session aims to address recent methodological and computational advances and developments facilitating the PBE as well as novel applications of the PBE to different types of time-varying loads and effects to various types of engineering structures. Suggestive topics to be covered include, but are not limited to:
    • Intensity measures, engineering demand parameters, and performance criteria for different excitations and structural systems
    • PBD methods for individual natural (e.g. earthquake, wind, flood) and man-made (e.g. fire, blast) hazards
    • Structural resiliency quantification and assessment
    • Risk quantification in multi-hazard environments
    • Performance-based multi-objective structural optimization
    • Applications of PBE to smart and adaptive structures