Dynamic response of Timoshenko beam under moving mass

Azam, Saeed Eftekhar; Mofid, Massood; Khoraskani, Roham Afghani

doi:10.1016/j.scient.2012.11.003

Cited by 20 publications

(5 citation statements)

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“…The problem of numerically predicting the dynamics of bridges under vehicular loads has so far attracted numerous researchers, who attacked the problem by studying the vibrations of a continuum under moving loads (Eftekhar Azam et al 2013, Frýba 1999, Maximov 2014, Mohebpour et al 2013, Ouyang 2011, Pimoradian et al 2014, Roshandel et al 2014. The so-called moving force/mass/oscillator/system assumptions for the vehicular load pattern are nowadays well-known.…”

Section: Introductionmentioning

confidence: 99%

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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Section: Introductionmentioning

confidence: 99%

Resonance of a rectangular plate influenced by sequential moving masses

Hassanabadi¹,

Attari²,

Nikkhoo³

et al. 2016

Coupled systems mechanics

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show abstract

“…Frýba (1999) has presented a comprehensive monograph on the moving load problems citing a considerable number of published researches before 1999. In contrast to the availability of a voluminous literature discussing beams acted upon by the traveling masses (Nikkhoo et al (2007); Kiani et al Latin A m erican Journal of Solids and Structures 12 (2015 ) 317-332 (2009a, 2009b, 2010); Kiani and Nikkhoo (2012); Ahmadi and Nikkhoo (2014), Nikkhoo et al (2015); Bulut and kelesoglu (2010); Zarfam et al (2013); Eftekhar Azam et al(2013); Ebrahimzadeh ), vibration of plates under the action of the moving loads has so far received slight attention.…”

Section: Introductionmentioning

confidence: 99%

Inspection of a Rectangular Plate Dynamics Under a Moving Mass With Varying Velocity Utilizing BCOPs

Niaz

Nikkhoo

2015

Lat. Am. j. solids struct.

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This research is dedicated to the inspection of a thin rectangular plate dynamic behavior traversed by an accelerated moving mass. BCOPs (boundary characteristic orthogonal polynomials) are utilized to treat the constitutive equation of plate vibration for different boundary conditions. Comprehensive parametric surveys are carried out to shed light on the effects of the plate fixities and aspect ratios as well as the moving mass weight, velocity and acceleration on the plate DAF (dynamic amplification factor). The convenience of adopting the presented solution dealing with various plate fixity cases makes it a superior approach comparing with eigenfunction expansion method.

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“…The timevarying position is the major characteristic of such dynamic loads and they may appear in a number of industrial applications in the realm of civil and mechanical engineering. This problem would be encountered in the vibration of bridges, high-speed machining process, decks of ships on which the airplanes land, pavements, rail roads, wood saws, computer discs, vehicle discs and drum brakes [1][2][3][4][5][6][7]. An extensive literature in this area has been reviewed by Frýba [8] and Ouyang [9].…”

Section: Introductionmentioning

confidence: 99%

“…Eftekhar Azam et al [1] showed that dynamic response of the beam under mass would yield to the upper bound results compared to that of the moving oscillator model. Roshandel et al [5] obtained analytical solutions to the dynamic response of Timoshenko beams of different boundary conditions under moving masses, utilizing the eigenfuction expansion method (EEM).…”

Section: Introductionmentioning

confidence: 99%