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Showing 1 to 11 of 11 for “"Torsional Response"”.
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Flapping-Torsional Response of Helicopter Rotor Blades to Turbulence Excitation
… equations governing the coupled flapping-torsional motion of a rotor blade are derived. The blade is treated as being rigid and centrally hinged for the flapping motion, and as being elastic with a linear deformation mode for the torsional motion. Classical steady theory is used to …
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An experimental study of torsional response of reinforced concrete structures to earthquake excitation
… systems were made to study the combined torsional-translational response of reinforced concrete. A specially designed specimen was used in which the material interactions could be uncoupled. Test variables included: mass distribution, strength, and the presence of material interaction.
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Modeling of nonstationary earthquake ground motion and biaxial and torsional response of inelastic structures
A systematic way to analyze the response 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 …
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Integrated seismic assessment and design of plan-irregular structures
… be highly vulnerable to earthquake damage due to torsional response. Thus, the structural design of plan-irregular structures requires advanced seismic assessment and design guidelines which address torsional effects. This study aims to provide advanced and improved seismic assessment and design …
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Response of a cracked rotating shaft with a disk during passage through a critical speed
… parts, which are the investigation of flexural response, neglecting the torsional vibrations, and the investigation of flexural-torsional response. In both studies the longitudinal vibration and the influence of shear deformation are neglected. The boundary conditions of the supports are simply …
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Nonlinear Seismic Response of Asymmetric Structures
… of analytical software to predict inelastic torsional response is discussed for both a model tuned to the measured dynamic properties of the actual structure and a model based on common modeling assumptions. Further, the effects on prediction accuracy of different analytical modeling …
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Torsional effects in structures subjected to strong ground motion
The dynamic characteristics and torsional behavior of structures during strong ground motion were investigated; both linear and nonlinear material behavior were considered. Emphasis was placed on the strong torsional coupling associated with the beating phenomenon in the seismic response of …
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The Effect of Matrix Molecular Weight on the Dispersion of Nanoclay in Unmodified High Density Polyethylene
… during injection molding. DMTA showed that the torsional response of the HMW nanocomposites was not as great compared to their LMW and MMW counterparts as observed from a lower percentage enhancement in the storage modulus (Gâ ) and estimated heat distortion temperature (HDT) due to anisotropy …
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Finite element formulation of a thin-walled beam with improved response to warping restraint
… of curved beams, for which there is torsional-flexural coupling. A number of cases of a curved I-beam under various loading and boundary conditions are analysed, and in every case the results agree closely with the analytical solution. In order to represent the torsional response the …
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Implementation of an anisotropic plasticity model and its application to pile foundations problems
… has been the subject of numerous studies, the response under combined horizontal and torsional loading has received considerably less attention. The emphasis of this research is on using numerical simulation to investigate the response of pile foundations in soft clay under different loading …