نتایج جستجو برای: winkler elastic foundation
تعداد نتایج: 161880 فیلتر نتایج به سال:
Geometrically nonlinear analysis of thin circular plates on Winkler elastic foundations has been studied in this paper. The nonlinear partial differential equations obtained from von Karman’s large deflection plate theory have been solved by using the discrete singular convolution (DSC) in the space domain and the harmonic differential quadrature (HDQ) method in the time domain.
In the present work, analysis of concrete pavements using ANSYS software has been attempted. is a finite element method-based software. The slab modeled with solid 45 brick and spring elements for soil. Analysis was carried out wide range load soil combination. as “Winkler type” represented by elastic springs their stiffness derived from modulus sub-grade reaction. influence any particular base...
Beams supported by elastic foundations are one of the complex soil-structure interaction problems that have been studied using "beam on foundation" concept. To support loads, structural foundation and soil continuum must work together. The development more accurate model simpler procedure critical for safety cost-effective construction such type structure. Three nodded beams based Timoshenko be...
Free vibration analysis is carried out on axially inhomogeneous beams resting Winkler-Pasternak elastic foundation. The material properties of the beam like Young’s modulus, modulus rigidity and density are considered to be varying along length direction following constant, linear exponential models. subjected different combinations clamped simply supported boundary conditions. formulation base...
The general solution of the axial symmetry elastic space problem in cement concrete pavement is an elementary question. Combining Love method and Southwell method, operator was used variable selection process, displacement function introduced to express component by expression stress indicated obtained combining components, geometric equations, physical then substituted into equilibrium equatio...
It has been observed from previous large earthquakes that weakening the structural foundation can reduce damage of structure itself by allowing a rocking motion to release seismic energy, and this design philosophy is gradually applied new constructions. In paper, simplified model process rigid block proposed, equation derived, parameter analysis carried out. was found height–width ratio dampin...
This article focuses on studying the nonlinear vibration of functionally graded (FG) curved nanobeams resting Pasternak-Winkler elastic foundation based nonlocal strain gradient theory along with first-order shear deformation beam (FSDBT) considering von-Kármán hypothesis. The Hamilton principle is applied to extract three motion equations and Galerkin method (GM) utilized spatially reduce diff...
Transverse vibration of two axially moving beams connected by a Winkler elastic foundation is analyzed analytically. The system is a model of paper and paper-cloth (wire-screen) used in paper making. The two beams are tensioned, translating axially with a common constant velocity, simply supported at their ends, and of different materials and geometry. Due to the effect of translation, the dyna...
Cracks cause to change dynamic response of beams and make discontinuity in slope of the deflection of the beams. The dynamic analysis of the Euler-Bernoulli cracked beam on the elastic foundation subjected to the concentrated load is presented in this paper. The stiffness of the elastic foundation and elastic supports influence on vibrational characteristics of the cracked beam. The Dynamic Gre...
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