Log in

Relevant bibliographies by topics / Frequency domain integral equation model

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers

Academic literature on the topic 'Frequency domain integral equation model'

Author: Grafiati

Published: 11 December 2022

Last updated: 25 January 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Frequency domain integral equation model.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Frequency domain integral equation model"

1

Poljak, Dragan, and Khalil El Khamlichi Drissi. "Electromagnetic Field Coupling to Overhead Wire Configurations: Antenna Model versus Transmission Line Approach." International Journal of Antennas and Propagation 2012 (2012): 1–18. http://dx.doi.org/10.1155/2012/730145.

Full text

Abstract:

The paper deals with two different approaches for the analysis of electromagnetic field coupling to finite length overhead wire: the wire antenna theory (AT) and the transmission line (TL) method. The analysis is carried out in the frequency and time domain, respectively. Within the frequency domain analysis the wire antenna formulation deals with the corresponding set of Pocklington integrodifferential equation, while the transmission line model uses the telegrapher's equations. The set of Pocklington equations is solved via the Galerkin-Bubnov scheme of the Indirect Boundary Element Method (

APA, Harvard, Vancouver, ISO, and other styles

2

Shen, Xiao Long, Yong Xin Luo, Lai Xi Zhang, and Hua Long. "Natural Frequency Computation Method of Nonlocal Elastic Beam." Advanced Materials Research 156-157 (October 2010): 1582–85. http://dx.doi.org/10.4028/www.scientific.net/amr.156-157.1582.

Full text

Abstract:

After adopting the constitutive equations of the nonlocal elastic media in the form of Eringen, and making use of the Laplace transformation, the vibration governing equation of nonlocal elastic beam in the Kelvin media are established. Unlike classical elastic models, the stress of a point in a nonlocal model is obtained as a weighted average of the field over the spatial domain, determined by a kernel function based on distance measures. The motion equation of nonlocal elastic beam is an integral differential equation, rather than the differential equation obtained with a classical local mod

APA, Harvard, Vancouver, ISO, and other styles

3

Wang, Yuansheng, Bo Li, and Xiangyu Yu. "A transient solution on potential equation of diffusion type with time-varying coefficients." Advances in Engineering Technology Research 3, no. 1 (2022): 54. http://dx.doi.org/10.56028/aetr.3.1.54.

Full text

Abstract:

Research on hydrothermal sulphide ore of marine mineral resources exploration is hot recently. According to the general solution of first order differential equation, Laplace transform is used to transform the linear homogeneous differential equation of second order variable coefficient into first order differential equation of complex domain. The general solution of the first-order differential equations in complex domain is similarly obtained without regard for the difference between real domains and complex domains. Further more, the general solutions are deduced to the second order linear

APA, Harvard, Vancouver, ISO, and other styles

4

Liu, Eric H., and Yves Lamontagne. "Geophysical application of a new surface integral equation method for EM modeling." GEOPHYSICS 63, no. 2 (1998): 411–23. http://dx.doi.org/10.1190/1.1444341.

Full text

Abstract:

We describe some 3-D electromagnetic (EM) geophysical applications of a new frequency‐domain iterative surface integral equation (SIE) method. The new method is formulated by applying the scalar Green’s theorem to the three Cartesian components of the magnetic field individually. The boundary conditions are implemented through iterations. The convergence behavior of the iteration is demonstrated explicitly through an example. Frequency‐domain results for a number of simple geophysical models are given. The transient response of one model, obtained via inverse Fourier transform, is shown to be

APA, Harvard, Vancouver, ISO, and other styles

5

Avdeev, Dmitry B., Alexei V. Kuvshinov, Oleg V. Pankratov, and Gregory A. Newman. "Three‐dimensional induction logging problems, Part I: An integral equation solution and model comparisons." GEOPHYSICS 67, no. 2 (2002): 413–26. http://dx.doi.org/10.1190/1.1468601.

Full text

Abstract:

A 3‐D frequency‐domain solution based on a volume integral equation approach has been implemented to simulate induction log responses. In our treatment of the problem, we assume that the electrical properties of the bedding as well as the borehole and invasion zones can exhibit transverse anisotropy. The solution process uses a Krylov subspace iteration to solve the scattering equation, which is based on the modified iterative dissipative method. Internal consistency checks and comparisons with mode matching and finite‐difference solutions for vertical borehole models demonstrate the accuracy

APA, Harvard, Vancouver, ISO, and other styles

6

Wang, Quanquan, Zukun Song, Jian Zhu, and Huazhong Liu. "Transient Electromagnetic Analysis of Multilayer Graphene with Dielectric Substrate Using Marching-on-in-Degree Method." Coatings 10, no. 8 (2020): 718. http://dx.doi.org/10.3390/coatings10080718.

Full text

Abstract:

The marching-on-in-degree (MOD) method is applied in this paper to analyze the transient electromagnetic scattering of multilayer graphene and a dielectric substrate. The time domain resistive boundary condition (TD-RBC) integral equation and time domain Poggio–Miller–Chang–Harrington–Wu (PMCHW) integral equation of electric and magnetic currents are employed to model graphene and the dielectric substrate, respectively. These two sets of equations are coupled and solved with the MOD method. The dispersion of multilayer graphene’s surface conductivity/resistivity in the frequency domain is take

APA, Harvard, Vancouver, ISO, and other styles

7

Coccetti, F., W. Dressel, P. Russer, L. Pierantoni, M. Farina, and T. Rozzi. "Accurate modeling of high frequency microelectromechanical systems (MEMS) switches in time- and frequency-domainc." Advances in Radio Science 1 (May 5, 2003): 135–38. http://dx.doi.org/10.5194/ars-1-135-2003.

Full text

Abstract:

Abstract. In this contribution we present an accurate investigation of three different techniques for the modeling of complex planar circuits. The em analysis is performed by means of different electromagnetic full-wave solvers in the timedomain and in the frequency-domain. The first one is the Transmission Line Matrix (TLM) method. In the second one the TLM method is combined with the Integral Equation (IE) method. The latter is based on the Generalized Transverse Resonance Diffraction (GTRD). In order to test the methods we model different structures and compare the calculated Sparameters to

APA, Harvard, Vancouver, ISO, and other styles

8

Zhang, Wei. "Calculation of Dynamic Stress Intensity Factor by the Boundary Element - Laplace Transform Method." Advanced Materials Research 989-994 (July 2014): 1825–28. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.1825.

Full text

Abstract:

Using the Laplace transform and freezing time variable, the problem in the time domain into the frequency domain to solve the problem. The establishment of a crack unit model in the frequency domain, and the boundary integral equation and discrete form containing the crack unit has been deduced. While using Durbin algorithm suitable for transient dynamic response of the inverse Laplace transform, the amount of stress intensity factor of a set of transformation parameters corresponding to the frequency domain into a time domain to obtain the dynamic stress intensity factor of time curve, and ca

APA, Harvard, Vancouver, ISO, and other styles

9

Crandall, S. H. "The Hysteretic Damping Model in Vibration Theory." Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science 205, no. 1 (1991): 23–28. http://dx.doi.org/10.1243/pime_proc_1991_205_086_02.

Full text

Abstract:

The characterization of damping elements by differential or integral equations relating physical variables by transfer functions in the frequency domain and by impulse response functions in the time domain is carried out for the ideal viscous damper, the ideal hysteretic damper and the band-limited hysteretic damper. It is shown that the latter two models are flawed because they do not satisfy the causality requirement.

APA, Harvard, Vancouver, ISO, and other styles

10

Slob, Evert, and Maarten Mulder. "Seismoelectromagnetic homogeneous space Green’s functions." GEOPHYSICS 81, no. 4 (2016): F27—F40. http://dx.doi.org/10.1190/geo2015-0337.1.

Full text

Abstract:

We have developed explicit expressions and the corresponding computer code for all homogeneous space Green’s functions for coupled electromagnetic fields and poroelastic waves. The Green’s functions are derived from the basic equations in closed form in the wavenumber- and space-frequency domains. They are given for point sources of any type. This adds several Green’s functions to what has been published before. These Green’s functions can be used in integral equation formulations, for numerical model validation, and for studying earthquake-related electrokinetic effects. The wavenumber domain

APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Frequency domain integral equation model"

1

Bukilic, Nino. "Wide bandwidth focal plane array receiver for radio astronomy." Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/2331.

Full text

Abstract:

Reflective antennas equipped with phase array feeds (PAFs) have been proposed as part of the Square Kilometre Array reference design, since they offer a wide Field of View (FoV) and large collecting area. To achieve a contiguous FoV, and to cancel spill-over radiation, the Focal Plane Array (FPA) must sample the focal field of the reflector at least every half-wavelength at the upper operating frequency. Low-noise operation over a wide bandwidth requires appropriate impedance matching to the low-noise amplifiers, and this is a challenging research problem since the input impedance of the FPA e

APA, Harvard, Vancouver, ISO, and other styles

2

Dély, Alexandre. "Computational strategies for impedance boundary condition integral equations in frequency and time domains." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2019. http://www.theses.fr/2019IMTA0135.

Full text

Abstract:

L'équation intégrale du champ électrique (EFIE) est très utilisée pour résoudre des problèmes de diffusion d'ondes électromagnétiques grâce à la méthode aux éléments de frontière (BEM). En domaine fréquentiel, les systèmes matriciels émergeant de la BEM souffrent, entre autres, de deux problèmes de mauvais conditionnement : l'augmentation du nombre d'inconnues et la diminution de la fréquence entrainent l'accroissement du nombre de conditionnement. En conséquence, les solveurs itératifs requièrent plus d'itérations pour converger vers la solution, voire ne convergent pas du tout. En domaine te

APA, Harvard, Vancouver, ISO, and other styles

3

Štumpf, Martin. "Implementation and Test of a 2D-integral-equation MoM-algorithm for the Analysis of Power-Bus Structures on Printed Circuit Boards." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217683.

Full text

Abstract:

Tato práce se zabývá analýzou power-bus struktur využitím metody založené na formulaci problému 2D hraniční integrální rovnicí ve frekvenční oblasti. Uvedená metoda byla implementována v Matlabu. Program umožňuje analyzovat obecné polygonální power-bus struktury s možností nastavení parametrů substrátu a libovolného počtu a umístění budících portů. Výstupem programu je frekvenční závislost rozložení elektrického pole mezi deskami struktury, vztahy mezi porty struktury vyjádřené např. impedanční maticí a vyzařovací diagram. Dále byla implementována možnost převodu výsledné impedanční matice do

APA, Harvard, Vancouver, ISO, and other styles

4

Bourguignon-Mirebeau, Jennifer. "Préconditionnement de méthodes de décomposition de domaine pour les problèmes de diffraction d'ondes électromagnétiques impliquant une cavité profonde." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00651957.

Full text

Abstract:

Cette thèse est dédiée à la résolution numérique tridimensionnelle des équations de Maxwell harmoniques, par des méthodes de décomposition de domaine couplant des résolutions par équations intégrales entre elles. Pour traiter les problèmes de diffraction d'ondes, la méthode des équations intégrales est un outil précieux. Elle consiste à paramétrer le champ électromagnétique solution par une source définie sur la surface de l'objet diffractant, solution d'une nouvelle équation linéaire (l'équation intégrale). Pour des applications à haute fréquence, le grand nombre d'inconnues (de l'ordre du mi

APA, Harvard, Vancouver, ISO, and other styles

5

Tsuji, Paul Hikaru. "Fast algorithms for frequency domain wave propagation." 2012. http://hdl.handle.net/2152/19533.

Full text

Abstract:

High-frequency wave phenomena is observed in many physical settings, most notably in acoustics, electromagnetics, and elasticity. In all of these fields, numerical simulation and modeling of the forward propagation problem is important to the design and analysis of many systems; a few examples which rely on these computations are the development of metamaterial technologies and geophysical prospecting for natural resources. There are two modes of modeling the forward problem: the frequency domain and the time domain. As the title states, this work is concerned with the former regime. The diff

APA, Harvard, Vancouver, ISO, and other styles

6

Kaur, Guneet. "Numerical errors and accuracy-efficiency tradeoff in frequency and time-domain integral equation solvers." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-12-2422.

Full text

Abstract:

This thesis presents a detailed study of the numerical errors and the associated accuracy-efficiency tradeoffs encountered in the solution of frequency- and time-domain integral equations. For frequency-domain integral equations, the potential integrals contain singular Green’s function kernels and the resulting singular and near-singular integrals must be carefully evaluated, using singularity extraction or cancellation techniques, to ensure the accuracy of the method-of-moments impedance matrix elements. This thesis presents a practical approach based on the progressive Gauss-Patterson quadr

APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Frequency domain integral equation model"

1

Tapan, Sarkar, ed. Parallel solution of integral equation based EM problems in the frequency domain. Wiley, 2009.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

1935-, Miller E. K., Medgyesi-Mitschang Louis 1940-, and Newman Edward H. 1946-, eds. Computational electromagnetics: Frequency-domain method of moments. IEEE Press, 1992.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Jung, B. H. Time and frequency domain solutions of EM problems: Using integral equations and a hybrid methodology. IEEE Press, 2010.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Zhang, Y., and T. K. Sarkar. Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. Wiley & Sons, Incorporated, John, 2009.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Zhang, Y., and T. K. Sarkar. Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. Wiley & Sons, Incorporated, John, 2009.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

Zhang, Y., Kai Chang, B. H. Jung, T. K. Sarkar, and Z. Ji. Time and Frequency Domain Solutions of EM Problems: Using Integral Equations and a Hybrid Methodology. Wiley & Sons, Incorporated, John, 2011.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

Zhang, Y., B. H. Jung, T. K. Sarkar, Z. Ji, and M. Yuan. Time and Frequency Domain Solutions of EM Problems: Using Integral Equations and a Hybrid Methodology. Wiley & Sons, Incorporated, John, 2011.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Frequency domain integral equation model"

1

"Chapter 8: Applications of the Parallel Frequency-Domain Integral Equation Solver - TIDES." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.ch8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

"Chapter 5: Tuning the Performance of a Parallel Integral Equation Solver." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.ch5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

"Appendix A: A Summary of the Computer Platforms Used in This Book." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.app1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

"Appendix B: An Efficient Cross-Platform Compilation of the ScaLAPACK and PLAPACK Routines." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.app2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

"Appendix C: An Example of a Parallel MoM Source Code for Analysis of 2D EM Scattering." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.app3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

"Chapter 1: Introduction." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.ch1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

"Chapter 2: In-Core and Out-of-Core LU Factorization for Solving a Matrix Equation." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.ch2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

"Chapter 3: A Parallel MoM Code Using RWG Basis Functions and ScaLAPACK-Based In-Core and Out-of-Core Solvers." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.ch3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

"Chapter 4: A Parallel MoM Code Using Higher-Order Basis Functions and ScaLAPACK-Based In-Core and Out-of-Core Solvers." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.ch4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

"Chapter 6: Refinement of the Solution Using the Iterative Conjugate Gradient Method." In Parallel Solution of Integral Equation-Based EM Problems in the Frequency Domain. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470495094.ch6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Frequency domain integral equation model"

1

Hong, D. C., S. Y. Hong, G. J. Lee, and M. S. Shin. "Influence of the Waterline Integral on the Solution of the Frequency-Domain Forward-Speed Radiation-Diffraction Problem of a Ship Advancing in Waves." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23093.

Full text

Abstract:

The radiation-diffraction potential of a ship advancing in waves is studied using the three-dimensional frequency-domain forward-speed free-surface Green function (Brard 1948) and the forward-speed Green integral equation (Hong 2000). Numerical solutions are obtained by making use of a second-order inner collocation boundary element method which makes it possible to take account of the line integral along the waterline in a rigorous manner (Hong et al. 2008). The present forward-speed Green integral equation includes not only the usual free surface condition for the potential but also the adjo

APA, Harvard, Vancouver, ISO, and other styles

2

van Zutphen, Hermione J., and Joost den Haan. "Practical Implementation of the Polynomial Representation of Potential Damping in Time Domain Simulations." In ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2005. http://dx.doi.org/10.1115/omae2005-67385.

Full text

Abstract:

Time domain simulations are required when analyzing nonlinear vessel behaviour. The usual approach conducting time domain simulations is to transform a complex valued function of frequency dependent damping and added mass to a convolution integral in the time domain. Evaluating the integrals during time domain simulations is computational expensive and the accuracy of the calculation of the limit value of added mass in diffraction calculations is dependent on the panel size of the model. In this paper, an alternative approach based on a polynomial model for damping proposed by K.E. Kaasen et a

APA, Harvard, Vancouver, ISO, and other styles

3

Hong, D. C., S. Y. Hong, and H. G. Sung. "Numerical Study of the Ship Motion in Waves Using the Three-Dimensional Time-Domain Forward-Speed Free-Surface Green Function and a Second-Order Boundary Element Method." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57146.

Full text

Abstract:

The radiation and diffraction potentials of a ship advancing in waves are calculated in the time-domain using the three-dimensional time-domain forward-speed free-surface Green function and the Green integral equation on the basis of the Neumann-Kelvin linear wave hypothesis. The Green function approximated by Newman for large time is used together with the Green function by Lamb for small time. The time-domain diffraction problem is solved for the time derivative of the potential by using the time derivative of the impulsive incident wave potential represented by using the complementary compl

APA, Harvard, Vancouver, ISO, and other styles

4

Peña-Sanchez, Y. "Frequency-Domain Identification of Radiation Forces for Floating Wind Turbines by Moment-Matching." In Floating Offshore Energy Devices. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901731-9.

Full text

Abstract:

Abstract. The dynamics of a floating structure can be expressed in terms of Cummins’ equation, which is an integro-differential equation of the convolution class. In particular, this convolution operator accounts for radiation forces acting on the structure. Considering that the mere existence of this operator is highly inconvenient due to its excessive computational cost, it is commonly replaced by an approximating parametric model. Recently, the Finite Order Approximation by Moment-Matching (FOAMM) toolbox has been developed within the wave energy literature, allowing for an efficient parame

APA, Harvard, Vancouver, ISO, and other styles

5

Corral, Roque, Michele Greco, and Almudena Vega. "Higher-Order Conceptual Model for Labyrinth Seal Flutter." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14387.

Full text

Abstract:

Abstract A simple non-dimensional model to describe the flutter onset of two-fin straight labyrinth seals [1] is extended to account for non-isentropic flow perturbations. The isentropic relationship is replaced by the more general integral energy equation of the inter-fin cavity. A new expression for the Corral & Vega stability criterion is derived which is very consistent with the previous model in the whole design space of the seal but for torsion centers located in the high-pressure side close to the seal. The new model formally depends on more dimensionless parameters since the existi

APA, Harvard, Vancouver, ISO, and other styles

6

Emam, Samir A., and Ali H. Nayfeh. "Postbuckling and Free Vibrations of Composite Beams." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35007.

Full text

Abstract:

An exact solution for the postbuckling configurations of composite beams is presented. The equations governing the axial and transverse vibrations of a composite laminated beam accounting for the midplane stretching are presented. The inplane inertia and damping are neglected, and hence the two equations are reduced to a single equation governing the transverse vibrations. This equation is a nonlinear fourth-order partial-integral differential equation. We find that the governing equation for the postbuckling of a symmetric or antisymmetric composite beam has the same form as that of a metalli

APA, Harvard, Vancouver, ISO, and other styles

7

Sengupta, Debasmit, Ranadev Datta, and Debabrata Sen. "Hydroelastic Analysis of a 3D Floating Body Considering Uncoupled Flexural and Torsional Vibrations." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77042.

Full text

Abstract:

A semi analytic three-dimensional time domain method is developed to predict the hydroelastic effect due to wave induced loads on a floating body. The methodology being a semi analytic approach is able to capture real life scenario of bending of a ship like structure on sea taking both flexural and torsional vibrations. A prismatic beam equation with analytically defined modeshapes is taken into consideration to represent the structural response. The elastic deformation is solved using modal superposition technique. The radiation forces for elastic modes are obtained through impulse response f

APA, Harvard, Vancouver, ISO, and other styles

8

Kashinath, Karthik, Santosh Hemchandra, and Matthew P. Juniper. "Nonlinear Phenomena in Thermoacoustic Systems With Premixed Flames." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68726.

Full text

Abstract:

Nonlinear analysis of thermoacoustic instability is essential for prediction of frequencies, amplitudes and stability of limit cycles. Limit cycles in thermoacoustic systems are reached when the energy input from driving processes and energy losses from damping processes balance each other over a cycle of the oscillation. In this paper an integral relation for the rate of change of energy of a thermoacoustic system is derived. This relation is analogous to the well-known Rayleigh criterion in thermoacoustics, but can be used to calculate the amplitudes of limit cycles, as well as their stabili

APA, Harvard, Vancouver, ISO, and other styles

9

Ricci, Pierpaolo, Jean-Baptiste Saulnier, Anto´nio F. de O. Falca˜o, and M. Teresa Pontes. "Time-Domain Models and Wave Energy Converters Performance Assessment." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57642.

Full text

Abstract:

To evaluate the performance of a Wave Energy Converter (WEC) with realistic Power Take-Off (PTO) configurations, moorings, control systems and other contributions, time-domain models are required to deal with the non-linearities arising from the different elements of the energy chain. Future developers, in order to give a correct estimation of the expected power output of their devices, will have to apply these models and will be asked about the accuracy they can provide, particularly on what concerns the performance of the device in a determined location. A general mathematical outline of thi

APA, Harvard, Vancouver, ISO, and other styles

10

Mezher, Haitham, David Chalet, and Jérôme Migaud. "Coupling a Linear Pressure and Mass Flow Frequency Model Obtained From Measurements at the Intake of an IC Engine With a Non-Linear Time Domain Code." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20369.

Full text

Abstract:

Engine simulation software has become synonymous with automotive design and component development. An integral part of any engine simulation is the correct modeling of the air flow at the intake. This air flow, which is highly compressible and unsteady, has a first order influence on the trapped air mass inside the cylinder and therefore on the behavior of the engine (torque response and emissions). The non-linear modeling of the air paths at the intake is done using a space-time meshing and by solving the 1D equations with a proper time scheme. Such methods are the bases of today’s engine sim

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!