Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 29 for “"Nonlinear Responses"”.
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Spatial competition and nonlinear responses in marketing
… stockpiling can lead to an "increasing returns" nonlinear response of market share to price reductions, and that the effect is not noticeable when competitors have small price differences. The model also differentiates between perishable and nonperishable goods, and shows that this may drive …
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Nonlinear responses of a hinged circular plate with a concentric rigid mass
Call number: LD2668 .T4 ME 1987 W34
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Nonlinear responses of a hinged circular plate with a concentric rigid mass
Call number: LD2668 .T4 ME 1987 W34
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Unsteady aerodynamics for aeroelastic applications using the impulse response method
… aerodynamic panel code, PMARC, to obtain impulse responses. The basic formulation of the method is limited to rigid-body analyses and is thus of limited use to aeroelastic studies. To this end, the method is extended to flexible-body responses by considering impulse distribution functions that are …
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Time dependence of nonlinear flow dynamics of near hard sphere suspensions
… the viscous behavior dominates, the onset of nonlinearities is driven by increases in rate of strain. At higher deformation frequency, where suspension mechanics is dominated by an elastic response, the nonlinear responses occur when deformation exceeds a characteristic strain. This strain is …
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Dynamics of lattice vibrations, molecular rotations and spins studied by terahertz spectroscopy
… bandwidths or tailored waveforms using organic nonlinear optical crystals and spectroscopy experiments utilizing THz pulses to study the linear and nonlinear responses of molecular dipole, spin, and lattice degrees of freedom in molecular and condensed-matter systems. We have developed several …
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A twenty DOF element for nonlinear analysis of unsymmetrically laminated beams
… a simple one- dimensional finite element for the nonlinear analysis of symmetrically and unsymmetrically laminated composite beams including shear deformation. There is a need for a simple and efficient method for analyzing unsymmetrically laminated beams since no other study on this topic is …
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Multimodal Soft Sensor Design through Single-Material Information Structuring
… using architectures capable of adapting to the nonlinear responses of functional materials such as self-healing polymers. In doing so, numerous novel contributions are demonstrated: designing at the material level yields a 3D-printable sensorised hydrogel which responds to various multimodal …
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Nonlinear static and transient analysis of generally laminated beams
… developed. Both theories account for geometric nonlinearities, a parabolic shear strain distribution through the thickness, and satisfy the shear stress free boundary conditions at the upper and lower surfaces of the beam. The theories also account for the bend-stretch, shear-stretch, and …
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Nonlinear Response of Cantilever Beams
The nonlinear nonplanar steady-state responses of cantilever beams to direct and parametric harmonic excitations are investigated using perturbation techniques. Modal interactions between the bending-bending and bending-bending-twisting motions are studied. Using a variational formulation, we …
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MULTIFUNCTIONAL BEHAVIORS OF TWO-DIMENSIONAL MATERIALS AND THEIR COMPOSITES
… stacks due to -O- atom bridging. Highly nonlinear responses and large residual deformations were observed under cyclic compression of MXene microparticles. At last, a wireless, flexible on-mask immunosensing-based COVID-19 breath sensor was developed to detect air-borne …
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WEAKLY NONLINEAR DYNAMIC ANALYSIS OF FLOATING BODIES IN WAVES
Weakly nonlinear dynamic responses of rectangular floating bodies are studied in this work. This study is based on a modified linear wave theory that gives a reasonable Froude-Krylov pressure distribution near the free surface. The idea of strip theory is then adopted to evaluate the Froude-Krylov …
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A nonlinear wave load model for extreme and fatigue responses of offshore floating wind turbines
… ocean energy. The accurate prediction of nonlinear hydrodynamic wave loads and the resulting nonlinear motion and tether tension is of crucial importance in the design of floating wind turbines. A new theoretical framework is presented for analyzing hydrodynamic forces on floating bodies …
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Wave loads on offshore wind turbines
… ocean energy. The accurate prediction of nonlinear hydrodynamic wave loads and the resulting nonlinear motion and tether tension is of crucial importance in the design of floating wind turbines. A new theoretical framework is presented for analyzing hydrodynamic forces on floating bodies …
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Structure–Property Relationships in Hybrid Crystalline Materials for Multifunctional Light–Matter Interactions
… enough. This phenomenon, known as optical nonlinearity, is at the heart of modern technologies that generate new colors of light, process information at ultrafast speeds, and enable quantum communication. However, finding materials that exhibit strong and stable nonlinear responses under …
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A framework for ship stability in a seastate using the state-space Fokker-Planck method
… This compels the need to reliably predict vessel responses to wave interactions in order to aid the decision-making process for operating the ship safely. Despite the advances in computational methods and stochastic hydrodynamic theories to this date, a general framework, capable of handling …
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Nonlinear terahertz spectroscopy of electronic and vibrational responses in condensed matter systems
… high-field terahertz (THz) pulses to initiate nonlinear responses in several classes of materials. We have developed several methods for interrogating the nonlinear THz response of materials including collinear and noncollinear THz-pump/THz-probe spectroscopy, and THz-pump/optical probe …
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Noise Suppression in OCDMA Networks using Nonlinear Optical Devices
… can be achieved through the use fibre-based nonlinear thresholders or optical time-gating. One problem with these solutions is the requirement of long lengths of nonlinear fibre that are susceptible to changes in environmental conditions. Therefore, this thesis focuses on the development and …
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Tractable multi-product pricing under discrete choice models
… attraction (GA) models broaden the range of nonlinear responses to changes in price. We propose a reformulation of the pricing problem over demands (instead of prices) which is convex. We show that the constrained problem under MNL models can be solved in a polynomial number of Newton …
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Optimization of composite box-beam structures including effects of subcomponent interaction
… analysis are subjected to a geometrically nonlinear analysis. For the designs which were subjected to bending loads, the innermost rib panel begins to collapse at less than half the intended design load and in a mode different from that predicted by linear analysis. The discrepancy between …
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