Nonlinear dynamic response
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Ebook "Theoretical methods in condensed phase chemistry (Volume 5)" is meant to provide a window on the rapidly growing body of theoretical studies of condensed phase chemistry. A brief perusal of physical chemistry journals in the early to mid 1980’s will find a large number of theoretical papers devoted to 3-body gas phase chemical reaction dynamics.
318p coduathanh1122 27-03-2024 3 1 Download
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Part 1 book "Structural dynamics" includes content: Undamped single degree of freedom system; damped single degree of freedom system; response of one degree of freedom system to harmonic loading; response to general dynamic loading; response spectra; nonlinear structural response; free vibration of a shear building; forced motion of shear buildings; reduction of dynamic matrices; dynamic analysis of beams; dynamic analysis of plane frames.
325p muasambanhan06 01-02-2024 5 1 Download
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There are researches about the behavior of pile under static loadings, but there are few experimental about dynamic behavior of the pile under dynamic excitations. Therefore, this study will focus on the behavior of pile for both cases in order to confirm the bearing capacity of the pile.
3p vipriyankagandhi 27-07-2022 7 1 Download
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Based on nonlocal strain gradient theory approach, we have analyzed the nonlinear dynamic response and vibration of sandwich thick plates with functionally graded (FG) face sheets and FG porous core subjected to mechanical, thermal and blast loads on elastic foundations.
15p vimelindagates 18-07-2022 12 3 Download
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Density functional theory was employed to investigate a series of phthalocyanine derivatives, discovering the limitation when the expansion of the conjugated system was employed to improve the hyper-Rayleigh scattering response coefficient. Furthermore, an unusually C∞v -type octupolar population was found by electrostatic potential analysis. In addition, the dynamic and static hyper-Rayleigh scattering responses (βHRS) were simulated using the coupled perturbed density functional theory, showing an increasing dynamic βHRS value along with an increase in incident light energy.
10p langthannam 29-12-2021 6 0 Download
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This study developed a set of parameters that can be used to normalize the modulus reduction and damping curves to be stressindependent. The proposed formulations for the stress-independent parameters were implemented in the finite element code SRAP and validated through producing shear modulus reduction and damping curves that match the existed ones.
16p chauchaungayxua12 09-07-2021 11 2 Download
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This paper presents the tri-rotor UAV dynamic modeling and divides it to the control loops under the condition that the response of the inner loop is faster than the response of the outer loop. From diagram of the control loops, attitude, velocity and position controllers have been synthesized based on feedback linearization and module optimization methods.
13p cothumenhmong11 05-05-2021 16 1 Download
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The paper studies the dynamic response of a Timoshenko beam resting on a third order nonlinear viscoelastic foundation subjected to a moving load. Basing on the theory Timoshenko, a single beam with a constant crosssection is described. The foundation modal is taken as the third order nonlinear viscoelastic foundation with six independent parameters.
6p vivirginia2711 09-12-2020 5 0 Download
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The study results for dynamic response of PFGCP present the effect of geometrical ratio, elastic foundations: Winkler foundation and Paskternak foundation; loads: mechanical load and thermal load; and the material properties and distribution type of porosity. The results are shown numerically and are determined by using Galerkin methods and Fourth-order Runge-Kutta method.
21p tamynhan6 14-09-2020 20 3 Download
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This paper presents a new methodology for the modeling and control of power systems based on an uncertain polytopic linear parameter-varying (LPV) approach using parameter set mapping with principle component analysis (PCA). An LPV representation of the power system dynamics is generated by linearization of its differential-algebraic equations about the transient operating points for some given specific faults containing the system nonlinear properties. The time response of the output signal in the transient state plays the role of the scheduling signal that is used to construct the LPV model.
10p kequaidan1 16-11-2019 60 2 Download
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In this paper, the governing equations of rectangular plates with variable thickness subjected to mechanical load are established by using the classical plate theory, the geometrical nonlinearity in von Karman-Donnell sense. Solutions of the problem are derived according to Galerkin method.
16p vitheseus2711 24-10-2019 31 3 Download
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In this research, the nonlinear dynamic response of functionally graded carbon nanotube reinforced composite (FG-CNTRC) sandwich annular spherical shells supported by Pasternak’ foundation is considered by using the analytical approach. Unlike existing works, the structure has three layers: FG-CNTRC layer – homogeneous core – FG-CNTRC layer.
14p vitheseus2711 24-10-2019 30 2 Download
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This research demonstrates an analytical method for investigation vibration and dynamic response of plates structure which made from 2-Dimensional (2D) penta-graphene. The density functional theory is used to figure out the elastic modulus of single layer penta-graphene.
17p vitheseus2711 24-10-2019 33 2 Download
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The main aim of the present article is to investigate nonlinear dynamic responses of sandwich-FGM circular cylinder shell containing fluid and surrounded by Winkler- Pasternak elastic mediums under mechanical loads in the thermal environment based on classical shell theory.
13p visumika2711 17-07-2019 15 0 Download
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The current work therefore develops an extreme nonlinear numerical model that can express the seismic response of the LRB for beyond design basis earthquakes. A full-scale LRB was fabricated and dynamically tested with various input conditions, and test results confirmed that the developed numerical model better represents the behavior of the LRB over previous models. Subsequent seismic response analyses of isolated nuclear power plants using the model developed here are expected to provide more accurate results for seismic probabilistic safety assessments.
7p minhxaminhyeu3 12-06-2019 13 0 Download
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In this study, the nonlinear dynamic responses are obtained by fourth order Runge-Kutta method and the nonlinear dynamic buckling behavior of stiffened functionally graded shells under linear-time loading is determined by according to Budiansky-Roth criterion. Numerical results are investigated to reveal effects of stiffener, input factors on the vibration and nonlinear dynamic buckling loads of stiffened functionally graded circular cylindrical shells.
13p thienthanquydu 19-10-2018 32 3 Download
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This paper deals with the nonlinear dynamic problem of eccentrically stiffened functionally graded circular cylindrical shells subjected to time dependent axial compression and external pressure by analytical approach. The present novelty is that an approximate three-term solution of deflection taking into account the nonlinear buckling shape is chosen, the nonlinear dynamic second-order differential three equations system is established and the frequency-amplitude relation of nonlinear vibration is obtained in explicit form.
0p thienthanquydu 19-10-2018 40 0 Download
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This volume, based on the proceedings of the Sixth International Symposium on Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines and Propellers aims at promoting an international exchange of current research in unsteady flow phenomena in turbomachines and propellers.
604p kennybibo 14-07-2012 74 10 Download
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Typical dynamic responses are also shown. The motor is initially at standstill and at no load when a step command in speed is applied; when steady-state conditions are reached, a reversal of speed is commanded followed by a step load application. The system is highly nonlinear due to the introduction of saturation needed to limit both the current delivered and the voltage applied to the motor.
20p meoden89nd 15-01-2011 195 39 Download