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 12 of 12 for “"random excitations"”.
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Nonlinear Analysis of Composite Beams under Random Excitations
… beams, that are excited with a Gaussian random forcing function, are studied in this thesis. The beams are analyzed nonlinearly and compared to linear results, indicating some important corrections. The solution procedure begins with the derivation of the general equation of motion using …
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Response of nonlinear structures to deterministic and random excitations
… systems to combined deterministic and stochastic excitations. They are a second-order closure method, a generalized method of equivalent linearization, and a reduced non-Gaussian closure scheme. Primary resonances of single- and two-degree-of-freedom systems in the presence of different internal …
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Stochastic finite element analyses of uncertain nonlinear plane trusses under random excitations
… with uncertain system parameters under random excitations. Emphasis is on structural nonlinear behavior due to both large deflection and inelastic deformation. The constitutive law is based on an explicit differential equation model, and the model parameters are determined in terms of …
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Reliability−based topology optimization frameworks for the design of structures subjected to random excitations
Embargo set by: Seth Robbins for item 95486 Lift date: 2018-11-10T18:43:22Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system
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Snap-through of a shallow arch subjected to random excitation
The motion of a shallow arch subjected to random loading is investigated. It is expected that the arch will vibrate about its initial stable configuration under low intensity loading, but will snap back and forth about its horizontal axis under high intensity loading. The parameter of interest is …
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Objective assessment of static and dynamic seats under vehicular vibrations
… load and human subjects under deterministic and random excitations
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Deterministic and stochastic responses of nonlinear systems
… systems to both deterministic and stochastic excitations. For a single-degree-of-freedom system, the response of a simply-supported buckled beam to parametric excitations is investigated. Two types of excitations are examined: deterministic and random. For the nonlinear response to a harmonic …
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Modeling of nonstationary earthquake ground motion and biaxial and torsional response of inelastic structures
… of inelastic structures under bi-directional random excitations is developed. Most of the system and excitation characters have been considered, e.g., hysteretic behavior of restoring force, biaxial interaction, torsional response and degradation of the structure, and nonstationary behavior of …
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An analytical study of ride and handling performance of an interconnected vehicle suspension
… dynamical system subject to excitations arising from road irregularities and roll moment caused by directional maneuvers. The static and dynamic properties of the interconnected suspension are derived and discussed in terms of its load-carrying capacity, suspension rate, roll …
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Enhanced Energy Harvesting for Rotating Systems using Stochastic Resonance
… whose output power drops dramatically under random excitations. This poses a serious problem because a lot of vibrations in rotating systems are stochastic. In this dissertation, a novel energy harvesting strategy for rotating systems was proposed by taking advantage of stochastic resonance. …
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Vibration and Buckling Analysis of Unitized Structure Using Meshfree Method and Kriging Model
… many engineering structures are subjected to random pressure loads in nature and cannot be assumed to be deterministic. Typical engineering structures include buildings and towers, offshore structures, vehicles and ships, are subjected to random pressure. The vibrations induced from gust …