Following up on the model development , the present study employs Monte-Carlo simulations in order to investigate the effect of the unavoidable variation in the values of the six-parameter model on the response of the base isolation system. (researchgate.net)
The numerical simulations results in conjunction with the frequency analysis results emphasized the existence of these vibrations and further theoretical studies are possible with a high level of accuracy. (uni-weimar.de)
Two benchmarks from the literature (Von Karman) and (Dyrbye and Hansen) are used to validate the numerical simulations of the vortex shedding for the CFD models. (uni-weimar.de)
The hysteresis loops are provided for this model with initial conditions using numerical simulations. (nottingham.edu.cn)
In such simulations, the interfaces between physical and numerical substructures are usually implemented using transfer systems, i.e., an arrangement of actuators. (frontiersin.org)
It is an efficient technique, since it merges the advantages of numerical simulations with the verisimilitude of experimental testing to form a high-fidelity tool for studying the dynamic response of systems whose size and complexity exceed the capacity of typical testing laboratories. (frontiersin.org)
Molecular dynamics simulations and solid-state nuclear magnetic resonance spectroscopy measurements of C-H bond order parameters and effective correlation times in a POPC-GM3 bilayer. (lu.se)
Nonlinear4
The results show that the complex nonlinear shear behavior of high damping rubber bearings can be correctly simulated by a parallel system which consists of only one component, namely the trilinear hysteretic system of the first type. (researchgate.net)
The proposed approach is based on a pseudo‐spectral method for discretizing the differential equations and the asymptotic numerical method to convert nonlinear systems into linear algebraic equations. (wiley.com)
The coupling of the spectral method with the asymptotic numerical method is considered as an efficient algorithm to solve any nonlinear differential equations. (wiley.com)
To have a more realistic modeling, utilizing nonlinear finite elements in conjunction with a lumped parameter modeling approach, we evaluate the nonlinear resorting characteristics of the components and implement them in the equations of motion. (hindawi.com)
Stiffness2
The approximation of the electrostatic force in the lumped-parameter model can describe the relations between amplitudes and frequencies with different values of the stiffness and damping coefficients quite well. (nottingham.edu.cn)
Then, the stiffness, mass, and damping matrices of steel-tube transmission towers (STTTs) with semi-rigid behaviors are determined to construct their stochastic dynamic finite element model. (oaepublish.com)
Ratios1
8 ] studied topology optimization problem for vibration reduction of flexible plate treated with CLD, in which evolutionary structural optimization (ESO) method is used to minimize structural modal damping ratios. (hindawi.com)
Modal1
Additionally, some studies [ 8 - 14 ] focused on the determination of dynamic characteristics (e.g., modal parameters) of tower structures, and other research efforts [ 15 , 16 ] aimed to conduct the size and shape optimization and wind-induced vibration control for guyed structures. (oaepublish.com)
Coefficient4
In addition, there is a magnification effect, since the coefficient of variation of the response, for most of the parameters, is larger than the coefficient of variation in the parameter values. (researchgate.net)
Due to the inertia tracks dimensions it provides an increased damping coefficient to the engine mount. (hindawi.com)
therefore, due to the decoupler's large dimensions, the system provides a low damping coefficient. (hindawi.com)
To this end, based on the experimental and numerical study, this paper proposes a fitting formula for the stability coefficient of steel tube members with semi-rigid behaviors in transmission towers to determine the dynamic stress response. (oaepublish.com)
Excitation3
This paradoxical behavior indicates that for optimum isolation of a structure from acceleration, hence force, a mount is needed in which high damping is allowed at low excitation frequencies, and low damping is allowed at increased excitation frequencies. (hindawi.com)
These two mechanisms act together, assuming an appropriately designed system, to provide a passive means of variable damping dependent upon excitation characteristics [ 10 ]. (hindawi.com)
Hybrid simulation is an efficient method to obtain the response of an emulated system subjected to dynamic excitation by combining loading-rate-sensitive numerical and physical substructures. (frontiersin.org)
Amplitudes2
Finally, a set of cyclic shear tests over a wide range of strain amplitudes on a high damping rubber bearing is used in the parameter identification of the two different systems, namely (a) trilinear hysteretic models of the first type connected in parallel, and (b) trilinear hysteretic models of the second type also connected in parallel. (researchgate.net)
It is demonstrated analytically and numerically that the internal damping plays an important role in the pull-in solution as well as in determination of the amplitudes and frequencies of the resonator. (nottingham.edu.cn)
Shear1
Many mechanical and geometric parameters influence the shear response of brickwork walls. (journaltocs.ac.uk)
Standard deviation2
The calibrated parameters values from all the experiments are used as mean values, while the standard deviation for each parameter is deduced from the identification tests employing best-fit optimization for each experiment separately. (researchgate.net)
The uncertainty can be expressed by its stochastic parameters, including the mean, the standard deviation, and the spatial correlation length. (uni-weimar.de)
Optimization3
Chen and Huang [ 4 ] presented a study on optimization of CLD placements for suppressing vibration of plates to minimize structural damping ratio while the shift of resonant frequency and the thickness of CLD were considered as penalty functions. (hindawi.com)
Optimization and global sensitivity analysis are utilized to target the vertical and torsional vibrations of the segmental deck through considering three aerodynamic parameters (wind attack angle, deck streamlined length and viscous damping of the stay cables). (uni-weimar.de)
Stellarator optimization is the numerical procedure by which the magnetic configuration is tailored to meet several design criteria, and neoclassical transport of bulk and energetic ions are two of them. (cern.ch)
Analytical1
Analytical formulas of the lumped parameters in the model are presented. (nottingham.edu.cn)
Experimental1
In many cases however, the investigated models and the experimental evidence showed substantial discrepancies depending on parameters and ranges of variables within which a model was used. (spie.org)
Vibration3
Next, experimentally obtained data from the five free vibration tests were used for the calibration of this six parameter model. (researchgate.net)
Constrained layer damping (CLD) treatment has been regarded as an effective means for suppressing vibration of the flexible engineering structures and their acoustic radiation since it was presented by Kerwin [ 1 ]. (hindawi.com)
Because there is a need for a vibration isolator that can exhibit a dual damping ratio that is dependent upon frequency the hydraulic engine mount was introduced. (hindawi.com)
Sensitivity analysis2
The model is widely benchmarked using the results obtained from two laboratory investigations on flat concrete and masonry prisms reinforced with FRP composite materials and an extensive sensitivity analysis performed by varying different parameters, namely: bond length, interfacial bonding law and FRP mechanical properties. (journaltocs.ac.uk)
Variance based sensitivity analysis is utilized to calculate the main sensitivity indices and the interaction orders for each parameter. (uni-weimar.de)
Finite2
An acoustic radiation model of a cavity with a flexible plate treated with constrained layer damping (CLD) is developed by a combination of finite element method (FEM) and boundary element method (BEM). (hindawi.com)
A stochastic one-dimensional settlement simulation is carried out using random finite element method with the von Wolffersdorff hypoplastic model, so as to evaluate the effect of stress level on the stochastic parameters of void ratio related parameters of sand. (uni-weimar.de)
Stationary4
This work introduces an accurate numerical approach for studying stationary incompressible Navier-Stokes equations. (wiley.com)
Abstract An accurate numerical tool is presented in this work to investigate the stationary incompressible Navier-Stokes equations. (wiley.com)
Fang and Zheng [ 9 ] employed moving asymptote (MMA) method to obtain optimal layouts of CLD material on base structure subjected to harmonic excitations or stationary random excitations, in which the solid isotropic material with penalization (SIMP) method was adopted to interpolate the constrained layer damping material. (hindawi.com)
The non-stationary random field, considering the depth-dependent character of these stochastic parameters, can be generated through the distortion of the stationary random field. (uni-weimar.de)
Simulation4
In terms of numerical modeling, a single-degree-of-freedom system is used here with a new five-parameter trilinear hysteretic model for the simulation of the high damping rubber bearing, coupled with a Coulomb friction model for the simulation of the low friction sliders. (researchgate.net)
A numerical Monte Carlo simulation is performed to obtain the logical error rates and a leading order analytic model is constructed to estimate their scaling behavior below threshold. (wisc.edu)
Albeit attractive, real-time hybrid simulation comes with numerous challenges, such as the inherent dynamics of the transfer system used, along with communication interrupts between numerical and physical substructures, that introduce time delays to the overall hybrid model altering the dynamic response of the system under consideration. (frontiersin.org)
During the test, the dynamic response of the physical substructure is measured and fed back to the numerical substructure, completing the unknown terms of the governing equations of motion of the hybrid model needed to compute the following command for the next time step of the simulation. (frontiersin.org)
Characteristics1
The hydraulic engine mount is a device that approximately provides the desired damping characteristics via the implementation of a mechanical switching mechanism known as the decoupler in conjunction with a narrow, highly restrictive fluid path known as the inertia track [ 1 , 2 , 5 - 9 ]. (hindawi.com)
Strain2
The one-dimensional settlement analysis is carried out to evaluation the effect of the depth-dependent character of the stochastic parameters of void ratio on the strain. (uni-weimar.de)
In this paper, a new Kelvin-Voigt type beam model of a microelectromechanical resonator made of power-law materials taking into account internal strain-rate damping is proposed and the corresponding lumped-parameter model is derived. (nottingham.edu.cn)
Rational2
The rational effect and the role of each parameter on the aerodynamic stability of the structure were calculated and efficient insight has been constructed for the stability of the long span bridge. (uni-weimar.de)
The kinetic energy approach performed very well in revealing the rational effect and the role of each parameter in the generation of vortex shedding and predicting the early VIV and the critical wind speed. (uni-weimar.de)
Model7
In this paper we present an innovative dual-phase Long-Short Term Memory (LSTM) Autoencoder-based surrogate model applied in an industrial context for the prediction of aircraft dynamic landing response over time, conditioned by an exogenous set of design parameters. (cerfacs.fr)
For our application, the results demonstrate that our LSTM-AE based model outperforms both Principal Component Analysis and Convolutional-Autoencoder based surrogate models, in predicting the parameters-dependent high-dimensional temporal system response. (cerfacs.fr)
In this talk, I first discuss our recent proposal to design high-fidelity controlled-σ z (CZ) operations using only DC bias control and then explore the performance of various existing superconducting surface code based architectures under a realistic multi-parameter error model. (wisc.edu)
In addition we have an analytic model that estimates the fidelities of CZ gates as a function of various pulse parameters as well as quantifies the error due to any perturbation over an optimal pulse shape. (wisc.edu)
Next we consider a realistic, multi-parameter error model and investigate the performance of the surface code for three possible fault-tolerant superconducting architectures. (wisc.edu)
And the pull-in solution is analyzed based on the lumped-parameter model. (nottingham.edu.cn)
The dependence of the cross section on parameters of recently proposed vector-like Technicolor model is studied. (lu.se)
Mechanical1
Numerical examples are presented to quantify the aforementioned observations made in reference to the mechanical behavior of the two trilinear hysteretic models. (researchgate.net)
Frequency1
Assuming phase or transmon qubits and using only low frequency qubit-bias control, our CZ operation exhibits threshold fidelity (intrinsic) with a realistic two-parameter pulse profile. (wisc.edu)
System3
The hybrid base isolation system combined high damping rubber bearings with low friction sliders. (researchgate.net)
The results show that variation in the material parameters of the base isolation system produce a nonstationary effect in the response. (researchgate.net)
Three aerodynamic parameters (wind speed, deck streamlined length and dynamic viscosity of the air) are dedicated to study their effects on the kinetic energy of the system and the vortices shapes and patterns. (uni-weimar.de)
High1
This validation asserts that the presented numerical tool can be promise for solving fluid flow problems with high accuracy. (wiley.com)
Method1
It combines a pseudo‐spectral method for equation discretization and an asymptotic numerical method to handle non‐linear systems as linear algebraic equations. (wiley.com)
Analysis2
The main chapters cover three common MR imaging modalities and their data modeling and analysis problems: functional MRI, diffusion MRI, and Multi-Parameter Mapping. (wias-berlin.de)
Meanwhile, the stochastic infinite slope stability analysis during infiltration, is also carried out to highlight the effect of the depth-dependent character of the stochastic parameters of ks. (uni-weimar.de)
Values1
Optimum values of the parameters have been identified. (uni-weimar.de)
Examples1
These computational efficiency and performance have been analysed via several numerical and benchmark examples of incompressible fluid flow in lid‐driven cavity and vortex shedding over L‐Shaped cavity and fluid flow around a square obstacle. (wiley.com)
Time2
We map amplitude and phase damping to an asymmetric depolarization channel via the Pauli twirl approximation, and obtain the logical error rate as a function of the qubit coherence time, intrinsic state preparation and gate and readout errors. (wisc.edu)
In every HS time step, the numerical substructure generates a command that needs to be followed by the physical substructure to maintain continuity of forces and displacements at the interface. (frontiersin.org)
Stress1
It is found that these stochastic parameters are both stress-dependent and depth-dependent. (uni-weimar.de)