publicationDate stringlengths 10 10 | abstract stringlengths 0 37.3k | title stringlengths 1 5.74k | doi stringlengths 11 47 ⌀ |
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2016-03-01 | We investigate a two-level system in a cavity QED by considering the effects of amplitude damping, phase damping and driving field. We have studied the non-Markovianity in resonance and non-resonance limits in the presence of these effects using Breuer–Laine–Piilo (BLP) non-Markovianity measure ( N _BLP). The evolution... | Dynamics of non-Markovianity in the presence of a driving field | 10.1007/s12043-015-1039-z |
2016-03-01 | The damping characterization is important in making accurate predictions of the seismic response of the hybrid structures dominated by different damping mechanisms. Different damping characteristics arise from the construction of the tower with different materials: steel for the upper part; reinforced concrete for the ... | Exploring damping characteristics of composite tower of cable-stayed bridges | 10.1007/s12046-016-0467-x |
2016-03-01 | The problem of damping motion of a hydromechanical system consisting of a viscous fluid and its bounding rigid walls is solved. A condition under which there is an abrupt deceleration of the hydromechanical system is determined. | Motion of a viscous fluid and a wall in the presence of a stationary wall | 10.1134/S0021894416020085 |
2016-03-01 | This paper analyzes the dynamical response of taut strings crossed by systems of traveling forces at constant velocity. Starting from the classic solution for the single moving load, the effect of trains of forces having a step equal to the string length is dealt with. The response is formulated in terms of a linear ma... | Dynamics of taut strings traveled by train of forces | 10.1007/s00161-015-0473-y |
2016-03-01 | Thermoelastic damping is a significant energy lost mechanism at room temperature in micro-scale resonators. Prediction of thermoelastic damping (TED) is crucial in the design of high quality MEMS resonators. In this study the governing equations of motion and the thermal couple equation of a microplate with an arbitrar... | Investigation of thermoelastic damping in rectangular microplate resonator using modified couple stress theory | 10.1007/s10999-014-9286-6 |
2016-03-01 | Numerical methods for solving linearly damped Hamiltonian systems are constructed using the popular Störmer–Verlet and implicit midpoint methods. Each method is shown to preserve dissipation of symplecticity and dissipation of angular momentum of an N -body system with pairwise distance dependent interactions. Necessar... | Second Order Conformal Symplectic Schemes for Damped Hamiltonian Systems | 10.1007/s10915-015-0062-z |
2016-03-01 | Dynamic stability of cutting processes against chatter vibration is a key requirement for high-speed machining and high material removal rate with high-quality surface finish. In the present work, the stiffness and damping of the machine tool are varied semi-actively by means of a magnetorheological (MR) damper to supp... | Semi-active fuzzy control of machine tool chatter vibration using smart MR dampers | 10.1007/s00170-015-7503-6 |
2016-03-01 | Hanged cables of through and half-through arch bridges are vulnerable to dynamic excitation because their intrinsic damping is very low. These components have been exhibiting unanticipated and excessive vibrations, which require more frequent maintenance and affect normal operations of the entire arch bridge. Mitigatio... | Optimal parameters of viscous damper for hanged cables in arch bridges | 10.1007/s12205-015-0771-8 |
2016-03-01 | The mechanical properties and phase morphology of a nanocomposite plate made from sulphonated poly (ether ether ketone) and p-toluene sulphonic acid-doped polyaniline nanoparticles were investigated. To study the static and dynamic response of the plate to transverse loads, the method of multiquadric radial basis funct... | Analysis of High-Performance PTSA-DOPED Polyaniline-Speek Nanocomposites | 10.1007/s11029-016-9563-6 |
2016-03-01 | The wide deployment of wind turbines in locations with high seismic hazard has led engineers to take into account a more comprehensive seismic design of such structures. Turbine specific guidelines usually use simplified methods and consider many assumptions to combine seismic demand with the other operational loads ef... | A computational platform for considering the effects of aerodynamic and seismic load combination for utility scale horizontal axis wind turbines | 10.1007/s11803-016-0307-3 |
2016-03-01 | The motion of collisional plasmas can be governed either by the Euler-Maxwell system with damping at the fluid level or by the Vlasov-Maxwell-Boltzmann system at the kinetic level. In the note, we present some recent results in [8] and [7] for the study of the non-trivial large-time behavior of solutions to the Cauchy ... | Large-time behavior for fluid and kinetic plasmas with collisions | 10.1007/s00574-016-0140-3 |
2016-03-01 | Falling Weight Deflectometer (FWD) produces pavement responses using a falling mass drop. This study investigated the features involved in the finite element modeling of FWD tests to help in the calibration of backcalculation. Falling mass, model size, subgrade damping, and boundary conditions were studied to reveal th... | Issues in simulating falling weight deflectometer test on concrete pavements | 10.1007/s12205-015-0299-y |
2016-03-01 | A hybrid joint interface module (HJIM) was developed using viscoelastic materials’ (VEM) “incompressible” property. The HJIM composes VEM layers compressed by screws. Its static stiffness and damping had been characterized by inverse receptance method. The analysis result showed that its static stiffness increases by n... | Constraining the shear strain in viscoelastic materials and utlization of the “incompressible” properties for damping treatment in hybrid joint interface module to improve their effect for vibration control in machining | 10.1007/s00170-015-7487-2 |
2016-03-01 | It is analytically difficult to calculate roll damping of ships due to the effects of viscosity. Therefore, computational fluid dynamics (CFD) has become a powerful tool in predicting roll damping recently. The unsteady flow around a forced rolling hull section with bilge keels can be calculated using a commercial URAN... | URANS prediction of roll damping for a ship hull section at shallow draft | 10.1007/s00773-015-0331-4 |
2016-03-01 | We demonstrate methods of enhancing robustness of entanglement of two-qubit systems undergoing generalized amplitude damping decoherence using weak measurement and measurement reversal. The results show that the local action of generalized amplitude damping noise can cause sudden death of entanglement, and the weak mea... | Enhancing Robustness of Entanglement in Finite Temperature Environment Using Quantum Measurement Reversal | 10.1007/s10773-015-2781-1 |
2016-03-01 | A method for determining the drag coefficient of a thin plate harmonically oscillating in a viscous incompressible fluid is proposed. The method is based on measuring the amplitude of deflections of cantilever-fixed thin plates exhibiting damping flexural oscillations with a frequency corresponding to the first mode an... | Theoretical-experimental method of determining the drag coefficient of a harmonically oscillating thin plate | 10.1134/S0021894416020103 |
2016-03-01 | We studied a mold oscillating mechanism for continuous casting. An equivalent hydraulic servo system model was established including a non-linear property and line volume near the hydraulic cylinder. The analysis focused on a practical behavior of the system. To observe an oscillated object and dynamic responses, an eq... | Practical behavior of advanced non-linear hydraulic servo system model for a mold oscillating mechanism depending on line volume | 10.1007/s12206-016-0201-y |
2016-03-01 | Frequency-domain airborne electromagnetics is a proven geophysical exploration method. Presently, the interpretation is mainly based on resistivity—depth imaging and one-dimensional layered inversion; nevertheless, it is difficult to obtain satisfactory results for two- or three-dimensional complex earth structures usi... | 2.5D forward modeling and inversion of frequency-domain airborne electromagnetic data | 10.1007/s11770-016-0548-y |
2016-02-27 | Background The N -dimensional isentropic compressible Euler system with a damping term is one of the most fundamental equations in fluid dynamics. Since it does not have a general solution in a closed form for arbitrary well-posed initial value problems. Constructing exact solutions to the system is a useful way to obt... | Perturbational blowup solutions to the compressible Euler equations with damping | 10.1186/s40064-016-1766-8 |
2016-02-06 | We establish a Philos-type oscillation theorem for a class of nonlinear second-order neutral delay dynamic equations with damping on a time scale by using the Riccati transformation and integral averaging technique. An illustrative example is provided to show that our theorem has practicability and maneuverability. | A Philos-type theorem for second-order neutral delay dynamic equations with damping | 10.1186/s13662-016-0767-9 |
2016-02-01 | Rubbers are commonly used in industry to reduce vibration transfer and, consequently, reduce structural noise. The vibration transfer through rubber can be modelled with finite elements; however, to achieve satisfactory results it is necessary to know the viscoelastic properties of the rubber. This paper describes the ... | Evaluation of the Frequency-Dependent Young’s Modulus and Damping Factor of Rubber from Experiment and Their Implementation in a Finite-Element Analysis | 10.1007/s40799-016-0027-7 |
2016-02-01 | In the current research, the muscle equivalent linear damping coefficient which is introduced as the force–velocity relation in a muscle model and the corresponding time constant are investigated. In order to reach this goal, a 1D skeletal muscle model was used. Two characterizations of this model using a linear force–... | Equivalent linear damping characterization in linear and nonlinear force–stiffness muscle models | 10.1007/s00422-016-0680-z |
2016-02-01 | A theoretical scheme is proposed to implement bidirectional quantum controlled teleportation (BQCT) by using a nine-qubit entangled state as a quantum channel, where Alice may transmit an arbitrary two-qubit state called qubits $$A_1$$ A 1 and $$A_2$$ A 2 to Bob; and at the same time, Bob may also transmit an arbitrary... | Bidirectional controlled teleportation by using nine-qubit entangled state in noisy environments | 10.1007/s11128-015-1194-7 |
2016-02-01 | We study the kinetic Kuramoto model for coupled oscillators with coupling constant below the synchronization threshold. We manage to prove that, for any analytic initial datum, if the interaction is small enough, the order parameter of the model vanishes exponentially fast, and the solution is asymptotically described ... | Exponential Dephasing of Oscillators in the Kinetic Kuramoto Model | 10.1007/s10955-015-1426-3 |
2016-02-01 | In the present study, forced vibration of an oscillator equipped with the tuned mass damper and the impact damper is investigated. In the impact damper system, elastic contact between masses is described using the Hertzian contact model and the energy loss during each contact is considered using a viscous damper. Appli... | Suppressing forced vibrations of structures using smart vibro-impact systems | 10.1007/s11071-015-2437-y |
2016-02-01 | The classical theory of mass-spring-damper-type dynamical systems on the ordinary flat space ℝ^3 may be generalized to higher-dimensional Riemannian manifolds by reformulating the basic underlying physical principles through differential geometry. Nonlinear dynamical systems have been studied in the scientific literatu... | Nonlinear damped oscillators on Riemannian manifolds: Fundamentals | 10.1007/s11424-015-4063-7 |
2016-02-01 | A mechanically resonant torsional spring scanner was previously designed for light dispersion application. However, the effects of mountings and pressure variation on the damping characteristic of the scanner were not well studied. In this study, the damping characteristics of the linear optical scanner with torsional ... | An Investigation on the Damping Characteristics of a Linear Optical Scanner | 10.1007/s40799-016-0032-x |
2016-02-01 | A simple and practical multiscale approach suitable for topology optimization of structural damping in a component ready for additive manufacturing is presented. The approach consists of two steps: First, the homogenized loss factor of a two-phase material is maximized. This is done in order to obtain a range of isotro... | A practical multiscale approach for optimization of structural damping | 10.1007/s00158-015-1326-9 |
2016-02-01 | The Mg alloy composite foams reinforced by SiC particles were fabricated by the melt foaming route. The composite foams exhibit uniform cell structure with a size of 0.6-0.8 mm and SiC_p distribution. The compressive behavior and damping property of the composite foams were emphasized. It is shown that the yield stress... | Compressive Behavior and Damping Property of Mg Alloy/SiC_p Composite Foams | 10.1007/s11665-015-1878-2 |
2016-02-01 | An analytical approach is presented to investigate the optimal problem of non-traditional type of Dynamic vibration absorber (DVA) for damped primary structures subjected to ground motion. Different from the standard configuration, the non-traditional DVA contains a linear viscous damper connecting the absorber mass di... | Research on the design of non-traditional dynamic vibration absorber for damped structures under ground motion | 10.1007/s12206-016-0113-x |
2016-02-01 | In this paper an energy generated mono tube MR damper model has been developed for vehicle suspension systems. A 3D model of energy generated MR damper is developed in Solid Works electromagnetic simulator (EMS) where it is analyzed extensively by finite element method. This dynamic simulation clearly illustrates the p... | Design and modeling of energy generated magneto rheological damper | 10.1007/s13367-016-0007-6 |
2016-01-21 | This paper presents a study on the damping ratio $$({\upbeta })$$ ( β ) used in discrete element simulations. Physical experiments are performed by dropping particles from a predetermined height. Two kinds of granular particles, aluminum and steel spheres, are used. The size of these particles are the same. The process... | Numerical and experimental verification of a damping model used in DEM | 10.1007/s10035-015-0597-6 |
2016-01-01 | This chapter examines the dissipation of sound and vibration into heat, which, in turn, yields a damping of the amplitudes. One consequence of dissipation is that the quality factors of the resonances decrease. This decrease usually depends on frequency. In addition, dissipative phenomena are likely to modify the natur... | Dissipation and Damping | 10.1007/978-1-4939-3679-3_5 |
2016-01-01 | Levitation using superconducting magnets has come a long way since Arkadiev’s experiment in the early 1940s, resulting in the superconducting maglev system L0 series for the route between Tokyo and Osaka at 505 km/h. Recently, several prototypes were built to transfer semiconductors using superconducting magnets in a c... | Superconducting Magnet | 10.1007/978-94-017-7524-3_4 |
2016-01-01 | In seismic design, buildings are designed to respond to strong earthquake ground motions inelastically. The engineering norm followed in design and analysis is to use constant modal viscous damping ratios to account for all energy dissipation aside from that arising from material nonlinearity. In general, equivalent li... | Estimating Effective Viscous Damping and Restoring Force in Reinforced Concrete Buildings | 10.1007/978-3-319-29751-4_27 |
2016-01-01 | Section 10.1 describes Landau damping and cyclotron damping. Dielectric tensor of bi-Maxwellian hot plasma ( 10.59 ) and ( 10.60 ) are derived step by step in Sects. 10.2 – 10.5 . Section 10.6 explains mathematical property of plasma dispersion function $$Z_\mathrm{p}(\zeta )$$ Z p ( ζ ) . Dispersion relation of ele... | Waves in Hot Plasmas | 10.1007/978-3-662-49781-4_10 |
2016-01-01 | Steel–concrete hybrid systems are used in buildings, in which a steel structure has been placed on a concrete structure to make a lighter structure and have a faster construction. Dynamic analysis of hybrid structures is usually a complex procedure due to various dynamic characteristics of each part, i.e., stiffness, m... | Uniform Damping Ratio For Non-Classically Damped Hybrid Steel Concrete Structures | 10.1007/s40999-016-0003-8 |
2016-01-01 | As HXD high-power AC electric locomotives and CRH (China Railways High-speed) electrical multiple units (EMUs) are put into operation in large scale in China, coupled oscillation between locomotives and traction power supply network is increasingly prominent and unfavorable for normal operations of railways and safety ... | The Cause Analysis for Low-Frequency Oscillation of AC Electric Locomotive and Traction Power Supply Network | 10.1007/978-3-662-49367-0_59 |
2016-01-01 | An investigation on the damping effects of different gas mediums in a capacitive MEMS accelerometer is carried out. Air, argon, carbon-dioxide, helium, hydrogen, nitrogen and oxygen are considered for the study. Detailed calculations of the temperature and pressure effects on the properties of various gases are first p... | Study of squeeze film damping characteristics under different gas mediums in a capacitive MEMS accelerometer | 10.1007/s40430-015-0316-6 |
2016-01-01 | A waveguide is a system, which by means of its boundaries contains and directs the flow of energy in a construction. One such system is a structural waveguide typical of a ship construction. Aircraft and certain train constructions are also built up of frames and plates. Parallel frames mounted to plate elements guide ... | Waveguides | 10.1007/978-3-662-47934-6_14 |
2016-01-01 | Over the last two decades, piezoelectric materials have been extensively used as components in active and passive structural vibration control solutions. The most frequent applications consider piezoceramic thin patches bonded to thin structures subjected to bending. For active vibration control solutions, the piezocer... | Piezoelectric Structural Vibration Control | 10.1007/978-3-319-29982-2_12 |
2016-01-01 | This paper presents a novel switched damping method which is able to improve the operational bandwidth of a linear electromagnetic energy harvester. In this system, different damping coefficients, in which values are computed based on the adaptive percentage-varying factor, are electronically switched at different poin... | Analytical Modeling for Switched Damping Electromagnetic Energy Harvester | 10.1007/978-3-319-30117-4_1 |
2016-01-01 | The paper at hand shows how structural damping and stiffness parameters in shrunk joints can be determined by a generic joint experiment. With thin layer elements these parameters from the joint experiment are coupled to the structures Finite Element Model. Equivalent modal damping factors can be determined by performi... | Simulation of Rotor Damping Assembled by Disc Shrink Fits | 10.1007/978-3-319-30084-9_43 |
2016-01-01 | Damping properties of assembled structures are largely influenced by frictional damping between joint interfaces. Therefore, these effects must be considered during the modeling process. Applying thin-layer elements (TLEs) with a linear, orthotropic material model on mechanical interfaces to incorporate joint damping h... | Reduced thin-layer elements for modeling the nonlinear transfer behavior of bolted joints of automotive engine structures | 10.1007/s00419-015-1109-1 |
2016-01-01 | Without loss of generality, it can be assumed that a shunt VSC is installed at a busbar between nodes 1 and 2 in an N-machine power system, as shown in Fig. 7.1 . The shunt VSC can be connected to an energy storage system ( ESS ESS ), a HVDC, or a static renewable power station, such as a photovoltaic (PV) or fuel cel... | Multi-machine Power Systems Installed with VSC-Based Stabilizers | 10.1007/978-1-4899-7696-3_7 |
2016-01-01 | A novel analytic approximate technique, namely optimal variational method (OVM), is employed to propose an approach to solve some nonconservative nonlinear oscillators. Different from perturbation methods, the validity of the OVM is independent on whether or not there exist small physical parameters in the considered n... | The Oscillator with Linear and Cubic Elastic Restoring Force and Quadratic Damping | 10.1007/978-3-319-42408-8_18 |
2016-01-01 | In this chapter, we present the development of the 5-mg suspended mirror driven by the quantum back-action larger than the thermal fluctuating force. The origin of quantum back-action is momentum transferred to the mirror by light upon its reflection. Concerning the coherent light, the photon number fluctuates accordin... | Experimental Results | 10.1007/978-4-431-55882-8_6 |
2016-01-01 | A human can perceive the hardness of an object by tapping its surface. We compared the ranked subjective hardness values and physical properties of objects, including their stiffness, viscosity, density, and Shore hardness, and the frequencies and time constants of the natural vibrations caused by tapping. The stiffnes... | What is the Hardness Perceived by Tapping? | 10.1007/978-3-319-42321-0_1 |
2016-01-01 | For damped acoustic metamaterials, a discrete model is proposed in the form of a periodic structure with cells of the simplest type. The effective parameters of the model are determined by criteria based on the equality of dispersion of waves. The general properties of the model are studied. An example of one negative ... | A discrete model of damped acoustic metamaterials | 10.1134/S1063771016010012 |
2016-01-01 | A fractional derivative Zener (FDZ) model connected in parallel with a linear viscous damper and a Coulomb friction slider is used to numerically simulate the mechanical behavior of a base isolated (BI) building tested under free vibration conditions in Solarino, Sicily. This hybrid BI system comprises high damping rub... | A fractional derivative Zener model for the numerical simulation of base isolated structures | 10.1007/s10518-015-9801-7 |
2016-01-01 | This text deals with the determination of stiffness and damping parameters of a dynamic system. These parameters are determined mathematically from the amplitude-frequency characteristics. In practice, this method is applied to automobile seat, which is equipped with a system of air springs without dampers. | Identification of Parameters of Stiffness and Damping Based on the Amplitude Frequency Characteristics | 10.1007/978-3-319-22762-7_63 |
2016-01-01 | In this paper, experimental characterization studies conducted for a tuned vibration absorber is presented. The tuned vibration absorber has been particularly designed to reduce transverse resonant vibration response of a supported cylinder structure at its dominant two modes. Various testing configurations and techniq... | Experimental Characterization of a Tuned Vibration Absorber | 10.1007/978-3-319-29859-7_18 |
2016-01-01 | In this paper, we consider the wave equation with both weak frictional damping and viscoelastic damping acting simultaneously and complementarily in the domain. We establish an explicit and general decay rate result, using some properties of the convex functions. Our result is obtained without imposing any restrictive ... | Uniform Decay Rates for Viscoelastic Dissipative Systems | 10.1007/s10883-014-9256-1 |
2016-01-01 | This article presents the sensitivity analysis of the method for determination of mass, damping and stiffness coefficients using the impulse excitation technique for a rotor-bearing system. Such an experimental approach is an adequate tool for the estimation of 24 dynamic coefficients, that is 4 damping coefficients, 4... | The Sensitivity Analysis of the Method for Identification of Bearing Dynamic Coefficients | 10.1007/978-3-319-42402-6_8 |
2016-01-01 | A rod-shape finite element with twelve degrees of freedom is proposed for modeling the elastic and damping properties of rotor blades with regard to their geometric stiffness caused by rotation of the rotor. A model of coupling of the torsion bar with blades is developed based on the hypothesis of linear deplanation of... | Modeling the Elastic and Damping Properties of the Multilayered Torsion Bar-Blade Structure of Rotors of Light Helicopters of the New Generation 2. Finite-Element Approximation of Blades and a Model of Coupling of the Torsion Bar with the Blades | 10.1007/s11029-016-9548-5 |
2016-01-01 | In this paper, we mainly focus our attention on the global dynamical behaviour of some ubiquitous nonlinear oscillators under the presence of nonlinear dissipation. We particularly consider the parametrically driven Duffing oscillator and externally driven Helmholtz–Duffing oscillators with nonlinear dissipation term p... | Dynamical behaviour of parametrically driven Duffing and externally driven Helmholtz–Duffing oscillators under nonlinear dissipation | 10.1007/s11071-015-2334-4 |
2016-01-01 | We turn now to a description of the basic techniques used for iteratively solving unconstrained minimization problems. These techniques are, of course, important for practical application since they often offer the simplest, most direct alternatives for obtaining solutions; but perhaps their greatest importance is that... | Basic Descent Methods | 10.1007/978-3-319-18842-3_8 |
2016-01-01 | This paper firstly presents an equivalent coupling circuit modeling of multi-parallel inverters in microgrid operating in grid-connected mode. By using the model, the coupling resonance phenomena are explicitly investigated through the mathematical approach, and the intrinsic and extrinsic resonances exist widely in mi... | Generalized coupling resonance modeling, analysis, and active damping of multi-parallel inverters in microgrid operating in grid-connected mode | 10.1007/s40565-016-0184-9 |
2016-01-01 | Damping vibrations occurring within the car’s suspension is an indispensable phenomenon in suspension operation. The most common damping element used in the suspension is the hydraulic shock absorber. Modern shock absorbers used in the suspensions mostly have nonlinear characteristics and other complex functional prope... | Analysis of the Forces Generated in the Shock Absorber for Conditions Similar to the Excitation Caused by Road Roughness | 10.1007/978-3-319-42408-8_30 |
2016-01-01 | We present a model to explain the bottomonium suppression observed in Pb $$+$$ + Pb collisions at Large Hadron Collider (LHC) energy, $$\sqrt{s_{NN}}=2.76$$ s N N = 2.76 TeV. A quasi-particle model (QPM) equation of state (EOS) for the Quark-Gluon Plasma (QGP) expanding under Bjorken’s scaling law at mid rapidity is e... | Bottomonium Suppression at LHC Energy Based on the Temperature Dependent Formation Time | 10.1007/978-3-319-25619-1_18 |
2016-01-01 | In order to satisfy high-accuracy navigation, improve comprehensive calibration accuracy, improved two-point calibration based on Extended State Observer (ESO).Gave a brief analysis on traditional two-point calibration, restrictive navigating state and its shortage, then estimated platform horizontal errors based on EO... | Research on Improvement of INS Two-Point Calibration in Horizontal Damping State | 10.2991/978-94-6239-145-1_41 |
2016-01-01 | Reduction of noise and vibration coming from the rail transport activities is an important objective of the environmental policy of the European Union, due to its impact on human and animal health. It has been identified that one of the major sources of noise and vibration in rail transport is from the interaction betw... | Effect of Pressure on Damping Properties of Granular Polymeric Materials | 10.1007/978-3-319-21762-8_13 |
2016-01-01 | Broadband impact excitation in structural dynamics is a common technique used to detect and characterize nonlinearities in mechanical systems since it excites many frequencies of a structure at once. Non-stationary time signals from transient ring-down measurements require time-frequency analysis tools to observe varia... | Instantaneous Frequency and Damping from Transient Ring-Down Data | 10.1007/978-3-319-29763-7_24 |
2016-01-01 | Underwater competitions confirm that the PID yaw controller is less efficient for low mass Autonomous Underwater Vehicle (AUV) to handle the robot uncertainties. Nonlinear hydrodynamic behavior, waves, current, AUV bouyance change, motor calibration variations, sensor disturbance and battery variations perturbate the P... | Underwater Vehicle Modeling and Control Application to Ciscrea Robot | 10.1007/978-3-319-32107-3_9 |
2016-01-01 | Various real-time correlation functions are defined (Wightman, retarded, advanced, time-ordered, spectral). Their analytic properties are discussed, and general relations between them are worked out for the case of a system in thermal equilibrium. Examples are given for free scalar and fermion fields. A physically rele... | Real-Time Observables | 10.1007/978-3-319-31933-9_8 |
2016-01-01 | The base vibration of a linear motor motion stage has been reduced with a passive reaction force compensation (RFC) mechanism based on a movable magnet track and springs. This paper presents the design procedure of an eddy-current damper (ECD) type RFC mechanism for a linear motor motion stage. The RFC mechanism with a... | Eddy current damper type reaction force compensation mechanism for linear motor motion stage | 10.1007/s40684-016-0009-3 |
2016-01-01 | It has long been believed that the main oxidant created inside a bubble at the bubble collapse in aqueous solutions under strong ultrasound is OH radical. However, numerical simulations of chemical reactions inside an air bubble in water indicate that the main oxidant is not always OH radical but sometimes H_2O_2 or O ... | Unsolved Problems in Acoustic Cavitation | 10.1007/978-981-287-278-4_1 |
2016-01-01 | Movement facilitation has a fundamental role in the rehabilitation treatment of stroke survivors. However, its action mechanisms are still poorly understood. An open question is to identify the effect of the level of assistance on the recovery process. To address this topic, new insight on voluntary control and movemen... | A Computational Index to Describe Slacking During Robot Therapy | 10.1007/978-3-319-47313-0_19 |
2016-01-01 | Joints, interfaces, and frictional contact between two substructures can be modelled as discrete nonlinearities that connect the substructures. Over the past decade, a number of phenomenologically different approaches to modelling and simulating the dynamics of a jointed structure have been proposed. This research focu... | Numerical Round Robin for Prediction of Dissipation in Lap Joints | 10.1007/978-3-319-15221-9_4 |
2016-01-01 | The viscoelastic properties Viscoelastic properties of carbon nanofiber (CNF) Carbon nanofiber reinforced polymer matrix composites are examined in this chapter. Temperature-dependent variations in the properties from subzero to above glass transition temperature Glass transition temperature ( T _ g ) is studied. Diffe... | Dynamic Mechanical Analysis of CNF/Polymer Composites | 10.1007/978-3-319-23787-9_6 |
2016-01-01 | This work presents a strategy for testing and validating structures connected together with bolted joints, which are the most common components in mechanical structures. Considering the great number of coupled mechanical structures and research studies on this subject, the authors focused this research work on bolted f... | Development of a test planning methodology for performing experimental model validation of bolted flanges | 10.1007/s11071-015-2382-9 |
2016-01-01 | In this chapter, a wide-area robust coordination method is proposed for HVDC- and FACTS-WADC. It can provide an effective damping on multiple inter-area oscillations excited by various operating conditions. A design procedure is planned as a way of executing the robust coordination for HVDC- and FACTS-WADC. In each ste... | Robust Coordination of HVDC and FACTS Wide-Area Damping Controllers | 10.1007/978-3-662-48627-6_8 |
2016-01-01 | Dynamics of Langmuir solitons is considered in the framework of the extended nonlinear Schrödinger equation (NLSE), including a pseudo-stimulated-Raman-scattering (pseudo-SRS) term, caused by stimulated scattering on damping ion-sound waves. Also included are spatially decreasing second-order dispersion (SOD) and incre... | Langmuir Solitons in Plasma with Inhomogeneous Electron Temperature and Space Stimulated Scattering on Damping Ion-Sound Waves | 10.1007/978-3-319-29608-1_19 |
2016-01-01 | Motivated by the current demands in high-performance structural analysis, and by a desire to better model systems with localized nonlinearities, analysts have developed a number of different approaches for modelling and simulating the dynamics of a bolted-joint structure. However, the types of conditions that make one ... | A Numerical Round Robin for the Prediction of the Dynamics of Jointed Structures | 10.1007/978-3-319-29763-7_20 |
2016-01-01 | The detection of structural damping is a crucial point in structural identification. Classic techniques usually refer to deterministic systems, since the assumption of randomness in the mechanical quantities implies non-trivial analytical difficulties in the development of both the direct and the inverse problem. In so... | Dynamic Identification of Classically Damped Uncertain Structures | 10.1007/978-3-319-29754-5_12 |
2016-01-01 | A design of double resonant control combined with a model-free decoupling filter (MFDF) is presented in this paper. The design is demonstrated using the proposed MFDF to decouple a parallel multi-input multi-output (MIMO) system into several single-input single-output systems and applying a double resonant controller f... | Combined Model-Free Decoupling Control and Double Resonant Control in Parallel Nanopositioning Stages for Fast and Precise Raster Scanning | 10.1007/978-3-319-43506-0_5 |
2016-01-01 | This chapter is devoted to summarize different approaches for the imaging technique of elastography: Quasi-Static, Harmonic and Transient elastography, Models for viscoelasticity. This promising technique is a good example of interdisciplinary mathematical research and applications. | Elasticity Imaging | 10.1007/978-3-319-31323-8_10 |
2016-01-01 | Resonant analysis of a vibration system equipped with a nonlinear displacement-dependent (NDD) damper is investigated. The frequency of the external forcing is chosen to be close to the natural frequency of the system. The system is modeled and the approximate analytical solution of the governing equation is developed ... | Resonant Analysis of Systems Equipped with Nonlinear Displacement-Dependent (NDD) Dampers | 10.1007/978-3-319-29739-2_8 |
2016-01-01 | Finite Element (F.E.) models need validating in order to reliably predict the dynamic properties of the system. One parameter that is necessary for updating the analytical models is the mode shape. The mode shapes obtained from analytical models are real-valued (normal modes), whereas the experimental mode shapes are m... | Normalization of Complex Mode Shapes by Truncation of Alpha-Polynomial | 10.1007/978-3-319-30249-2_6 |
2016-01-01 | An innovative modeling approach to reduce the whirling in the lathe machine using houdaille is presented by introducing the system excitation in the form of cutting forces between the cutting edge head and the workpiece. Houdaille damper is placed on the workpiece to minimize the whirling motion as much as possible. Th... | Reducing whirling motion in the lathe machine using houdaille damper | 10.1007/s12206-015-1203-x |
2016-01-01 | Shock absorbers of electronic devices can reduce vibration and protect devices. If shock absorbers don’t work normally, vibration cannot be effectively reduced which may lead to devices’ degradation or even failure. Through a method combining theoretical analysis, simulation and test, failure mechanisms of dry friction... | Failure Mechanism Analysis and Life Estimation of Dry Friction Damping Shock Absorber | 10.2991/978-94-6239-148-2_58 |
2016-01-01 | From the manifold strategies that nature offers to materials under overload conditions, we describe two: the fibrous and multi-layered system of the bark of the Giant Sequoia, which possesses an impressive damping mechanism, and the spines of pencil and lance sea urchins. The latter introduce a new concept to energy di... | Plants and Animals as Source of Inspiration for Energy Dissipation in Load Bearing Systems and Facades | 10.1007/978-3-319-46374-2_7 |
2016-01-01 | Figure 4.1 shows the configuration of a shunt voltage source converter (VSC)-based unit connected to high-voltage transmission line through a step-down transformer. x_s is the equivalent reactance of the step-down transformer. | Single-Machine Infinite-Bus Power Systems Installed with VSC-Based Stabilizers | 10.1007/978-1-4899-7696-3_4 |
2016-01-01 | Reducing the magnitude of the vibrations transmitted to a user’s hands through the loop handle and grip of a string trimmer is a priority for maintaining both health and comfort. Prior work on internal-combustion (IC) powered string trimmers has indicated that Lodengraf™ damping may be effective in reducing vibration a... | Evaluating the Effectiveness of a Lodengraf Damping Approach for String Trimmers | 10.1007/978-3-319-30084-9_34 |
2016-01-01 | We consider the half-linear differential equation with an unbounded damped term, $$\begin{aligned} (\phi _p(x'))' + h(t)\!\,\phi _p(x') + \omega ^p\phi _p(x) = 0, \end{aligned}$$ ( ϕ p ( x ′ ) ) ′ + h ( t ) ϕ p ( x ′ ) + ω p ϕ p ( x ) = 0 , where $$\omega > 0$$ ω > 0 and $$\phi _p(z) = |z|^{p-2}z$$ ϕ p ( z ) = | z | p ... | Parameter diagram for global asymptotic stability of damped half-linear oscillators | 10.1007/s00605-014-0695-2 |
2016-01-01 | The geometric layout and physical properties of a viscoelastic damping material have a significant influence on the damping performance of a passive constrained layer damping (PCLD) structure. This paper presents a two-scale optimization method and aims to find the optimal microstructural configuration of the viscoelas... | Microstructural topology optimization of viscoelastic materials for maximum modal loss factor of macrostructures | 10.1007/s00158-015-1305-1 |
2016-01-01 | Currently, to obtain an understanding of the frequency and damping of the modes of a rotating system, an impact test or a shaker test is done to find the frequency at which the modes of the system exist. Then, an operating test is done to obtain an understanding of the orders of the system. A Mode Enhanced Order Track ... | Estimation of Frequency and Damping of a Rotating System Using MEOT and Virtual Sensor Concept | 10.1007/978-3-319-29910-5_3 |
2016-01-01 | To illustrate the power and the pitfalls of Bionic Optimization, we will show some examples spanning classes of applications and employing various strategies. These applications cover a broad range of engineering tasks. Nevertheless, there is no guarantee that our experiences and our examples will be sufficient to deal... | Application of Bionic Optimization | 10.1007/978-3-662-46596-7_5 |
2016-01-01 | The mathematical models of processes in technology, economics, and nature are often nonlinear. Nonlinear problems often also arise in mathematics, an example of this is finding roots of a general function (e.g. of a high order polynomial). As the case of polynomials shows, nonlinear equations mostly have several roots.... | Nonlinear Equations and Systems | 10.1007/978-3-319-44660-8_7 |
2016-01-01 | Modern drivetrain, new types of engines and the effort to reduce the weight of the system improves the efficiency of powertrain. But also it is the way that the given system much more sensitive to the vibration. Today’s damper system, damped clutch disc and dual mass flywheel cannot remove or shift the resonance field ... | Pneumatic Dual Mass Flywheel – Damper Concept for Downspeeding | 10.1007/978-3-319-22762-7_54 |
2016-01-01 | Inflammatory processes play a key role in the initiation of the acute painful vaso-occlusive crises that constitute the main cause of hospitalization in individuals with sickle cell anemia, as well as many of its numerous complications, including autosplenectomy, pulmonary hypertension, acute chest syndrome, leg ulcers... | Inflammation and Sickle Cell Anemia | 10.1007/978-3-319-06713-1_8 |
2016-01-01 | This study aims to evaluate the seismic performance of steel moment resisting frames upgraded with shape memory alloy (SMA)-based self-centering viscous dampers. The superelastic viscous damper (SVD) relies on SMA cables for re-centering capability and employs viscoelastic (VE) damper that consists of two layers of a h... | Incremental Dynamic Analyses of Steel Moment Resisting Frames with Superelastic Viscous Dampers | 10.1007/978-3-319-29910-5_17 |
2016-01-01 | In this paper, we study an interconnected system of a Schrödinger and a wave equation with Kelvin-Voigt damping Kelvin-Voigt (K-V) damping, where the K-V damped wave equation performs as a Dynamic feedback controller dynamic feedback controller. We show that the system operator generates a C _0-semigroup of contraction... | Dynamic Boundary Stabilization of a Schrödinger Equation Through a Kelvin-Voigt Damped Wave Equation | 10.1007/978-3-319-30379-6_12 |
2016-01-01 | Hybrid Simulation (HS) and Real Time Hybrid Simulation (RTHS) are recognized as powerful techniques for civil infrastructure assessment. Typically in HS/RTHS, a critical component is isolated as the physical component in the simulation, while the remainder of the structure is modeled numerically. This approach enables ... | Real Time Hybrid Simulation with Online Model Updating on Highly Nonlinear Device | 10.1007/978-3-319-30084-9_32 |
2016-01-01 | A strategy of parallel computing (HPC) is proposed to solve the problem of inverse kinematics in 3D with multiple objectives using the damped least squares method, also known as the Levenberg-Marquardt method. The program solves the problem of moving one or more end-effectors of a robot to a desired target position by ... | Parallelized 3D Inverse Kinematics with Multiple Objectives | 10.1007/978-3-319-32243-8_7 |
2015-12-12 | This paper is concerned with the long-time behavior of solutions to the weakly damped wave equation with lower regular forcing defined on the entire space R 3 $\mathbb{R}^{3}$ . The existence of a global attractor in H 1 ( R 3 ) × L 2 ( R 3 ) $H^{1}(\mathbb{R}^{3}) \times L^{2}(\mathbb{R}^{3})$ is proven. Moreover, und... | Remark on global attractor for damped wave equation on
R
3
$\mathbb{R}^{3}$
... | 10.1186/s13662-015-0717-y |
2015-12-03 | We consider the periodic initial value problem associated to the generalized Benjamin-Bona-Mahony equation with generalized damping on the one dimensional torus. In contrast to the classical BBM equation, the main difference is that the generalized equation contains two nonlocal operators, and the main difficulty comes... | Local well-posedness of generalized BBM equations with generalized damping on 1D torus | 10.1186/s13661-015-0494-2 |
2015-12-01 | This paper is concerned with the study of the uniform decay rates of the energy associated with the wave equation subject to a locally distributed viscoelastic dissipation and a nonlinear frictional damping $$u_{tt}- \Delta u+ \int_0^t g(t-s){\rm div}[a(x)\nabla u(s)]\,{\rm d}s + b(x) f(u_t)=0\,\quad {\rm on} \quad \Om... | General decay rates for the wave equation with mixed-type damping mechanisms on unbounded domain with finite measure | 10.1007/s00033-015-0547-5 |
2015-12-01 | The initial-boundary value problem for a class of nonlinear hyperbolic equations system in bounded domain is studied. The existence of global solutions for this problem is proved by constructing a stable set, and obtain the asymptotic stability of global solutions by means of a difference inequality. | Existence and asymptotic behavior for systems of nonlinear hyperbolic equations | 10.1007/s11766-015-3083-3 |
2015-12-01 | The present study investigates the thermo-elastic damping (TED) of transversal vibration in a functionally graded piezoelectric (FGP) micro-beam resonator. The model is a functionally graded silicon-piezoelectric fully clamped micro beam exposed to a DC piezoelectric tuning voltage. The object is to propose a novel FGP... | Thermo-elastic damping in a functionally graded piezoelectric micro-resonator | 10.1007/s10999-014-9285-7 |
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