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 17 of 17 for “"Moving loads"”.
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Dynamic response of a model cantilever bridge to moving loads
Thesis (M.S.)--Michigan State University of Agriculture and Applied Science. Dept. of Civil Engineering, 1961
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An experimental study of the inelastic behavior of simple beams subjected to moving loads
Thesis (M.S.)--Michigan State University. Dept. of Civil Engineering, 1965
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Forced vibration and hygrothermal analysis of composite laminated beams under the action of moving loads
… glass/epoxy composite beams subjected to moving loads in a hygrothermal environment is carried out using the general purpose finite element program ANSYS. The moving load model and the hygrothermal incorporation are validated separately by reproducing results available in the literature. …
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Investigation of the performance of flexible pavement systems under moving loads using finite element analyses
<p>The introduction of larger and heavier aircraft with more complex wheel configurations is making the current design methods inadequate for airfield pavements. In addition, airport pavements experience significant wander. However, the effect of wander on airport pavement performance has not been …
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Dinâmica de estruturas reticuladas sob cargas móveis, pelo método dos elementos finitos
… the response due to concentraded and distributed moving loads on beams and on plane frames. An automatic program was developed for the computer IBM 1130 - 32k, and the impact factors for the moving loads mencioned above, were obtained by the program.
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Dinâmica de estruturas prismáticas laminares - consideração de cargas móveis
… analysis of laminated structures submitted to moving loads. The formulation of the problem makes use of Hamilton's principle and the linear theory of thin plates. Associated with the Fourier series, the finite element method is used to discretize the spatial variables. The resulting system of …
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Dinâmica de estruturas reticuladas sob cargas móveis pelo método das matrizes de transferência
… impact coefficients for structures subjected to moving loads using the Method of Transfer Matrices. This study presents the concepts of the method used, the process used to evaluate the required matrices, an automatic Fortran Program developed for this analyses and its user's manual. Are too …
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Resposta dinâmica de estruturas reticuladas a cargas móveis, pelo método dos elementos finitos
… the dynamic behavior of framed structures under moving loads by means of the finite element method. Three different types of loadings are idealized and impact factors determined for them, being developed computer programs for dynamic analysis of beams and plane frames. The structure-loading …
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Esforços máximos em pontes tipo grelha
… program gives the maximum bending moments due to moving loads and the transversal distribution coefficients, which can be utilized in the determination of maximum shear forces.
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Power flow in railway electrification power system
… problem which is characterized by its constant moving loads, dynamically changing load types (constant current/constant power), and its specialized network structure. The autotransformer power supply system with double track was the system studied in this thesis. The details of the system …
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Object oriented programming for reinforced concrete T-beam bridge design
… load effects in the deck and beam subjected to moving loads. The analysis results using the program were compared with those obtained from the commercial programs. The design results obtained from the program were compared with example problems for several test structures. Both design and …
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Physics-Informed Neural Networks for Structural Health Monitoring of Bridges
… imperfections. For simply supported beams under moving loads, forward PINNs are developed using spatial–temporal inputs, and then extended to include axle load magnitude as an additional input. These models accurately reproduce deflection, moments and strains for loads both within and beyond the …
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Study of load transfer efficiency of airfield rigid pavement joints based on stresses and deflections
… LTE (S) depends on the effect of single plate loads of FWD versus multiple gear loads of aircraft and short duration impulse loads of FWD verses a comparatively longer duration moving aircraft wheel loading. In addition, unknown differences may exist due to differential slab bending phenomena …
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Discrete element modeling of railroad ballast using imaging based aggregate morphology characterization
… nature railroad ballast aggregates under dynamic moving loads. Further, continuum solutions do not take into account realistically the morphological characteristics of aggregates such as particle size distribution and shapes. A combined digital image and Discrete Element Modeling (DEM) methodology …
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The Design, Fabrication, and Modeling of a Piezoelectric Linear Motor
… incremental linear motor with the capability of moving loads up to one hundred pounds and produce a velocity well over one inch per second. To aid the design process a lumped parameter model was created to simulate the motor's performance for any design parameter. Discrepancies occurred between …
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Methodology to Validate Traffic Speed Deflection Devices (TSDDs) Measurements Using Laser Doppler Vibrometers (LDV) Sensors
… to measure pavement deflection velocity under moving wheel loads. By applying the same measurement principles as TSDs, this setup provided a way to assess pavement structural response without requiring embedded sensors. Results showed consistent LDV measurements, which supported the use of LDVs …
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Analysis and comparison of the South African and Eurocode live load models for railway bridges
… bending moment. The load models are simulated as moving loads over the full length of simply supported and continuous railway systems with speeds not exceeding 180km/h. The study is limited to short to medium spans ranging from 5m – 40m analysed in increments of 5m. The position of the maximum …