A new simplied formula in prediction of the resonance velocity for multiple masses traversing a thin beam

Khoraskani, Roham Afghani; Mofid, Massood; Azam, Saeed Eftekhar; Hassanabadi, Mohsen Ebrahimzadeh

doi:10.24200/sci.2016.2104

Cited by 3 publications

(5 citation statements)

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“…Afghani Khoraskani et al (2016) proposed a simpler approximate formula to predict res , according to…”

Section: Resultsmentioning

confidence: 99%

“…However, one may be interested in an approximate but fast method to compute the resonance velocity only. A very simple formulation was given in Afghani Khoraskani et al (2016) to estimate such resonance velocity, based on a modification factor to be applied to the corresponding velocity of the sequential moving forces problem. In this Section, we propose a modification factor with accuracy higher than that by Afghani Khoraskani et al (2016); a comparison of the results furnished by the two approaches is provided in Section 4.…”

Section: A Simplified Approximate Methodsmentioning

confidence: 99%

“…Focusing specifically on the structural resonance induced by moving loads, in (Nikkhoo et al 2014, Wang et al 2003, Khoraskani et al 2016, Yang et al 2004, Dimitrovová 2014 procedures for engineering practitioners were proposed. It is in fact well-known that the resonance caused by successive vehicular loads can give rise to undesired consequences, as for the structural serviceability and maintenance (Nikkhoo et al 2014, Martínez-Rodrigo et al 2010a.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Resonance of a rectangular plate influenced by sequential moving masses

Hassanabadi¹,

Attari²,

Nikkhoo³

et al. 2016

Coupled systems mechanics

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In this work, an improved semi-analytical technique is adopted to track the dynamic response of thin rectangular plates excited by sequential traveling masses. This technique exploits a so-called indirect definition of inertial interaction between the moving masses and the plate and leads to a reduction, in the equations of motion, of the number of time-varying coefficients linked to the changing position of the masses. By employing this optimized method, the resonance of the plate can be obtained according to a parametric study of relevant maximum dynamic amplification factor. For the case of evenly spaced, equal masses travelling along a straight line, the resonance velocity of the masses themselves is also approximately predicted via a fast methodology based on the fundamental frequency of the system only.

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“…Afghani Khoraskani et al (2016) proposed a simpler approximate formula to predict res , according to…”

Section: Resultsmentioning

confidence: 99%

Section: A Simplified Approximate Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Resonance of a rectangular plate influenced by sequential moving masses

Hassanabadi¹,

Attari²,

Nikkhoo³

et al. 2016

Coupled systems mechanics

View full text Add to dashboard Cite

show abstract

“…Lee [11] investigated the separation between the base beam and the traveling mass and revealed that this effect would have a notable influence on the dynamic performance of the base beam for masses moving at high speeds. Khoraskani et al [12] introduced a simplified formula to shed light on the resonant vibration of a thin beam carrying sequential moving masses. Gbadeyan and Oni [13] established a theory regarding the dynamic response of finite elastic structures traversed by moving loads, utilizing modified generalized finite integral transforms and the modified Struble's method.…”

Section: Introductionmentioning

confidence: 99%

Dynamic response analysis of a thin rectangular plate of varying thickness to a traveling inertial load

Ghazvini

Nikkhoo

Allahyari

et al. 2015

J Braz. Soc. Mech. Sci. Eng.

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“…Vibrations of solid beam and plate structures acted upon by moving loads [31][32][33][34][35][36][37], moving masses [38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54], and moving mass-sprung systems [55][56][57] have been examined. Kiani et al.…”

Section: Introductionmentioning

confidence: 99%

An exact solution to the problems of flexo-poro-elastic structures rested on elastic beds acted upon by moving loads

2019

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This paper aims to examine flexural vibrations of fully saturated poroelastic structures on an elastic bed subjected to moving point loads via an analytical solution. Using a flexural beam model in conjunction with the Biot's poro-elasticity theory, the equations of motion of the porous structure are derived. Using assumed mode method and Laplace transform, the explicit expressions of displacement and pore pressure are obtained carefully.For a particular case, the predicted results are also compared with those of another work and a reasonably good agreement is achieved. The influences of the moving load velocity, permeability ratio, transverse stiffness of the foundation, viscosity of the pore fluid, and porosity on the maximum elasto-dynamic fields and pore pressure are conclusively discussed.The velocity pertinent to the maximum possible dynamic response is graphically determined and the roles of influential parameters on this crucial factor are displayed. The present model could be easily extended to multi-layered poroelastic structures under moving loads.

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A new simplied formula in prediction of the resonance velocity for multiple masses traversing a thin beam

Cited by 3 publications

References 0 publications

Resonance of a rectangular plate influenced by sequential moving masses

Resonance of a rectangular plate influenced by sequential moving masses

Dynamic response analysis of a thin rectangular plate of varying thickness to a traveling inertial load

An exact solution to the problems of flexo-poro-elastic structures rested on elastic beds acted upon by moving loads

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