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This book introduces novel results on mathematical modelling, parameter identification, and automatic control for a wide range of applications of mechanical, electric, and mechatronic systems, where undesirable oscillations or vibrations are manifested. The six chapters of the book written by experts from international scientific community cover a wide range of interesting research topics related to: algebraic identification of rotordynamic parameters in rotor-bearing system using finite element models; model predictive control for active automotive suspension systems by means of hydraulic actuators; model-free data-driven-based control for a Voltage Source Converter-based Static Synchronous Compensator to improve the dynamic power grid performance under transient scenarios; an exact elasto-dynamics theory for bending vibrations for a class of flexible structures; motion profile tracking control and vibrating disturbance suppression for quadrotor aerial vehicles using artificial neural networks and particle swarm optimization; and multiple adaptive controllers based on B-Spline artificial neural networks for regulation and attenuation of low frequency oscillations for large-scale power systems. The book is addressed for both academic and industrial researchers and practitioners, as well as for postgraduate and undergraduate engineering students and other experts in a wide variety of disciplines seeking to know more about the advances and trends in mathematical modelling, control and identification of engineering systems in which undesirable oscillations or vibrations could be presented during their operation.

Technology: general issues --- History of engineering & technology --- B-spline neural networks --- adaptive power system control --- coordinated multiple controllers --- StatCom --- exact plate theory --- thick plate --- bending vibration --- partial differential operator theory --- gauge condition --- data-driven control --- reactive power compensation --- STATCOM --- voltage control --- voltage source converter --- quadrotor UAV --- artificial neural networks --- robust control --- Taylor series --- B-splines --- particle swarm optimization --- active suspension --- model predictive control --- linear parameter varying --- ellipsoidal set --- attraction sets --- quadratic stability --- algebraic identification --- rotor-bearing system --- finite element model --- rotordynamic coefficients --- B-spline neural networks --- adaptive power system control --- coordinated multiple controllers --- StatCom --- exact plate theory --- thick plate --- bending vibration --- partial differential operator theory --- gauge condition --- data-driven control --- reactive power compensation --- STATCOM --- voltage control --- voltage source converter --- quadrotor UAV --- artificial neural networks --- robust control --- Taylor series --- B-splines --- particle swarm optimization --- active suspension --- model predictive control --- linear parameter varying --- ellipsoidal set --- attraction sets --- quadratic stability --- algebraic identification --- rotor-bearing system --- finite element model --- rotordynamic coefficients

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Marine power systems have been designed to be a safer alternative to stationary plants in order to adhere to the regulations of classification societies. Marine steam boilers recently achieved 10 MPa pressure, in comparison to stationary plants, where a typical boiler pressure of 17 MPa was the standard for years. The latest land-based, ultra-supercritical steam boilers reach 25 MPa pressure and 620 °C temperatures, which increases plant efficiency and reduces fuel consumption. There is little chance that such a plant concept could be applied to ships. The reliability of marine power systems has to be higher due to the lack of available spare parts and services that are available for shore power systems. Some systems are still very expensive and are not able to be widely utilized for commercial merchant fleets such as COGAS, mainly due to the high cost of gas turbines. Submarine vehicles are also part of marine power systems, which have to be reliable and accurate in their operation due to their distant control centers. Materials that are used in marine environments are prone to faster corrosive wear, so special care also should be taken in this regard. The main aim of this Special Issue is to discuss the options and possibilities of utilizing energy in a more economical way, taking into account the reliability of such a system in operation.

Technology: general issues --- History of engineering & technology --- atmospheric drain tank --- energy analysis --- exergy analysis --- optimization --- marine propulsion --- propulsion failure --- propulsion failure analysis --- mechanical failure --- LNG tanker --- combined cycle --- propulsion main engine --- marine diesel engine --- split injection --- fuel consumption --- NOx emissions --- exergy destruction --- exergy efficiency --- marine steam turbine --- MLP neural network --- turbine cylinders --- reliability --- fault tree analysis --- failure diagnosis --- diesel engine turbocharger --- maintenance --- underwater vehicle --- isolation --- flexible foundation --- vibration mitigation --- CODLAG --- data-driven modelling --- genetic programming --- decay state coefficients --- submarine cable --- hydraulic jet --- jet parameter --- operation efficiency --- trigeneration energy system --- cogeneration --- absorption cooling --- heating and cooling output --- n/a

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Hydropower is an essential part of the renewable energy sector. High efficiency, immediate availability, and safe operation of hydroelectric power plants are the three key issues in recent developments in the hydropower sector. This book brings together the latest achievements addressing these key factors. In addition, one contribution deals with the alternative harvesting of hydro energy from pivoted cylinders by generating flow-induced vibrations, which are unwanted phenomena in classical pump–turbine units.

annular seal --- CFD --- dynamic coefficients --- fluid forces --- nonlinear dynamic model --- static eccentricity --- reversible hydraulic machines --- penstocks --- pressure pipelines --- performance tests --- flow rate measurements --- volumetric gauging method --- pressure-time method --- water-hammer --- pump-turbine --- flow patterns --- pressure pulsations --- similarities --- differences --- S-shaped characteristics --- runaway transient process --- VIV --- FIV --- renewable energy --- pivoted cylinder --- cross section --- geometry --- pump as turbine (PAT) --- Francis turbine --- calculation model --- efficiency --- hydropower --- computational fluid dynamics --- hydraulic efficiency --- Gibson method --- manifolds --- turbine --- thermodynamic method --- air cushion surge tank (ACST) --- air friction model --- flexible hydro power plants --- mechanistic model --- OpenHPL

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Marine power systems have been designed to be a safer alternative to stationary plants in order to adhere to the regulations of classification societies. Marine steam boilers recently achieved 10 MPa pressure, in comparison to stationary plants, where a typical boiler pressure of 17 MPa was the standard for years. The latest land-based, ultra-supercritical steam boilers reach 25 MPa pressure and 620 °C temperatures, which increases plant efficiency and reduces fuel consumption. There is little chance that such a plant concept could be applied to ships. The reliability of marine power systems has to be higher due to the lack of available spare parts and services that are available for shore power systems. Some systems are still very expensive and are not able to be widely utilized for commercial merchant fleets such as COGAS, mainly due to the high cost of gas turbines. Submarine vehicles are also part of marine power systems, which have to be reliable and accurate in their operation due to their distant control centers. Materials that are used in marine environments are prone to faster corrosive wear, so special care also should be taken in this regard. The main aim of this Special Issue is to discuss the options and possibilities of utilizing energy in a more economical way, taking into account the reliability of such a system in operation.

Technology: general issues --- History of engineering & technology --- atmospheric drain tank --- energy analysis --- exergy analysis --- optimization --- marine propulsion --- propulsion failure --- propulsion failure analysis --- mechanical failure --- LNG tanker --- combined cycle --- propulsion main engine --- marine diesel engine --- split injection --- fuel consumption --- NOx emissions --- exergy destruction --- exergy efficiency --- marine steam turbine --- MLP neural network --- turbine cylinders --- reliability --- fault tree analysis --- failure diagnosis --- diesel engine turbocharger --- maintenance --- underwater vehicle --- isolation --- flexible foundation --- vibration mitigation --- CODLAG --- data-driven modelling --- genetic programming --- decay state coefficients --- submarine cable --- hydraulic jet --- jet parameter --- operation efficiency --- trigeneration energy system --- cogeneration --- absorption cooling --- heating and cooling output --- atmospheric drain tank --- energy analysis --- exergy analysis --- optimization --- marine propulsion --- propulsion failure --- propulsion failure analysis --- mechanical failure --- LNG tanker --- combined cycle --- propulsion main engine --- marine diesel engine --- split injection --- fuel consumption --- NOx emissions --- exergy destruction --- exergy efficiency --- marine steam turbine --- MLP neural network --- turbine cylinders --- reliability --- fault tree analysis --- failure diagnosis --- diesel engine turbocharger --- maintenance --- underwater vehicle --- isolation --- flexible foundation --- vibration mitigation --- CODLAG --- data-driven modelling --- genetic programming --- decay state coefficients --- submarine cable --- hydraulic jet --- jet parameter --- operation efficiency --- trigeneration energy system --- cogeneration --- absorption cooling --- heating and cooling output

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This Special Issue contains 12 papers devoted to fluid/structure interaction (FSI) problems. The main feature of the problems is an interface on which consistent boundary conditions for both the liquid and the solid regions are formulated. The presented studies cover a wide range of problems and methods for their solution, including problems of weak, or one-way interaction, in which the effect of interface deformation on the fluid flow can be neglected, as well as problems of the strong interaction, for which the interface change affects both the flow and the structure behaviour. The interest in FSI problems is very great due to their practical importance. Recent developments in engineering have led to advanced formulations of FSI problems. Some of them could not be formulated several years ago. The presented papers demonstrate progress in both numerical algorithms, mathematical apparatus and advanced computational techniques. In this issue, we have tried to collect different FSI problems, new mathematical and numerical approaches, new numerical techniques and, of course, new results, which can provide an insight into FSI processes.

Technology: general issues --- History of engineering & technology --- vortex-induced vibration --- higher mode --- flexible pipe --- oscillatory flow --- motion trajectory --- lock-in --- dominant frequency --- time-varying --- lifeboat --- freefall --- ship motion --- Kane’s method --- one-way coupling --- CFD-DEM --- ice resistance --- ice crack --- fluid–structure interaction --- flexible beam --- high speed imaging --- system coupling --- coastal structure --- fluid-structure interaction --- engineering design parameters --- environment protection --- intake velocity --- velocity cap --- axial hydraulic force --- stress --- deformation --- pump turbine --- starting-up --- cutting ratio --- codend --- hydrodynamic characteristics --- fluttering motions --- the Fourier series --- marine centrifugal pump --- vibration excitation source --- fluid excitation --- electromagnetic excitation --- numerical simulation --- OpenFOAM --- one-way approach --- structural analysis --- open water test --- computational fluid dynamics --- numerical analysis --- fluid mechanics --- blade design --- propeller --- hydraulic machinery runner --- wet modal analysis --- acoustic–structure coupling --- boundary condition --- marine growth --- hydrodynamic loading --- roughness --- mussels --- morison coefficients --- cavity detachment --- free streamlines --- Brillouin criterion --- n/a --- Kane's method --- acoustic-structure coupling