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Dynamic Analysis of Sliding Seismic Isolators
The friction pendulum system (FPS) sliding seismic isolators are being used for the seismic isolation rehabilitation of the U.S. Court of Appeals Building, San Fransisco. This paper will...

Actively Controlled P-F Based Sliding Structures
This study summarizes about three years of research effort related to active control of sliding structures to both harmonic and strong earthquake type motions. This is the first time such...

Water Wave Generated by a Porous Wavemaker
A vertical porous wavemaker sitting in an infinitely long channel of constant depth is studied. The wavemaker performs horizontal oscillatory motion. A simplified analytical approach for...

Dynamic Response of an Infinite Beam Supported by a Fluid
The objective of this study is to investigate the dynamic response of an infinite beam supported by a fluid on one side, and subjected to dynamic loading on the other side. The fluid underneath...

Computation of Wind Pressures on L-Shaped Buildings
The paper refers to the numerical simulation of turbulent wind conditions around an arbitrarily-shaped building composed of two rectangular blocks. The time-averaged Navier-Stokes equations...

Wind Effect on Oblique Motion of Two Bodies in a Uniform Flow
The wind effect on the general translational motion of a circular cylinder through an inviscid and incompressible fluid, conveyed by a uniform flow at infinity, in the vicinity of another...

Softening Models for Concrete: Stability and Uniqueness
A microstructurally-based, numerically oriented, fracture-induced softening model for concrete is presented. Rate-dependent evolution equations for microcrack nucleation, growth, and coalescence...

Basic Aspects of Damage Mesomodelling
The basic aspects of a general damage computational approach which enable to simulate the complete fracture phenomenon are presented. It is a semi-discrete modelling where the material,...

Three-Dimensional Thermal Jump in Stratified Cooling Channel
This study is concerned with basic properties of three-dimensional thermal jumps. Temperature measurements obtained in three-dimensional thermal jumps are presented. The jumps analyzed...

Computation of Flow in Ice-Covered Dune-Bed Channels
A numerical method for solution of the Reynolds-averaged Navier-Stokes equations is developed to study the flow over sand dunes in two-dimensional channels. The method is applied to calculate...

Turbulence, and Energy Loss, at Combining Pipe Junctions
Efforts to measure and describe the loss of energy at 90? sharp-edged junctions are described. The work is focussed on energy losses at discharge and area ratios for which there are no...

Flow Visualization of Lid-Driven Cylindrical Cavity Flow
The lid-driven cylindrical cavity flows in the laminar region are quantitatively visualized by a new flow visualization method called the digital vector velocimetry method. Particle streak...

General Mechanism of Turbulence
By considering the vortex structures of turbulence and using the concept and theory of the pulsative convection and diffusion of instantaneous vorticity in a viscous fluid motion, the...

Computer Simulation of Direct Shear Test
This paper presents a pilot study of a computer simulation of direct shear test on sands using the Discrete Element Method. The numerical test setup is described first, which is followed...

Probabilistic Micromechanics in Constitutive Modeling of Granular Material
This paper gives a review of newly developed probabilistic methods for analysis of the effect of randomness in geometry and physical properties at the microscale on their macroscale response...

Improved Time-History Analysis for Structural Dynamics Calculations
Methods are developed to reduce the computational effort in time-history analysis of nonlinear structures. The methods permit use of much larger time intervals than are possible in conventional...

Modal Coupling Effect of Non-Classically Damping
The equations of motion of a structure in undamped modal coordinates may have non-zero off-diagonal terms in the damping matrix. Although these terms are commonly neglected, studies have...

Nonlinear Dynamic Response of Framed Structures Using the Mode Superposition Method
This paper describes a methodology for nonlinear dynamic response analysis of framed structures using the mode superposition method. A portal frame example is presented and compared to...

Free Vibration Analysis of Asymmetric Buildings
A simple procedure for free vibration analysis of asymmetric buildings is presented. This method assumes that each floor is a rigid diaphragm with three degrees of freedom (two lateral...

Wave Induced Vortex Near Seashore
The vortex motion behind submerged breakwaters in the nearshore region is studied. The RCPWAVE model (Ebersole et al., 1986) is used to calculate the wave field and thus the radiator stresses...

 

 

 

 

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