Analysis of force and energy density transferred to barrier in a single degree of freedom vibro-impact system

Marzbanrad, Javad; Shahsavar, Mostafa; Beyranvand, B.

doi:10.1007/s11771-017-3539-0

Cited by 6 publications

(2 citation statements)

References 17 publications

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“…Limiting the motion of an oscillator adds a hardening effect to the system. Non-smoothness behavior of impact process causes sudden change in amount and direction of oscillator velocity (Marzbanrad et al, 2017; Rounak and Gupta, 2020). This non-smoothness behavior also adds strong nonlinearity to the mechanical system (Dulin et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Increasing the efficiency of a bistable cantilever beam energy harvester exploiting vibro-impact effects

Shahsavar

Ashory

Khatibi

2022

Journal of Intelligent Material Systems and Structures

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In this paper, a novel energy harvester is proposed by adding a barrier to a typical bistable energy harvester, which is modeled exploiting an equivalent single degree of freedom. By using Euler-Lagrange equations, mass, structural stiffness, magnetic force and electromechanical coupling coefficient of the harvester, are converted to an equivalent SDOF model. The frequency bandwidth of the system and the level of harvested power in impacting and non-impacting conditions are obtained. According to the numerical results, it is found by adding a barrier to a typical bistable energy harvester, the working frequency bandwidth of the system is increased tangibly. In fact, by vibro-impact phenomenon, the working frequency bandwidth and extracted power of the system are increased about 42.95% and more than 7 times, respectively. Additionally, the effects of stiffness and initial gap of the barrier are shown on frequency bandwidth of the harvester. It is observed that the gap distance has more effect on widening frequency bandwidth of the system against barrier stiffness. Finally, the effect of the electrical load resistance on the harvested power is discussed at various barrier stiffnesses and initial gap distances and finally the optimum values of the electrical load are provided for each condition.

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Section: Introductionmentioning

confidence: 99%

Increasing the efficiency of a bistable cantilever beam energy harvester exploiting vibro-impact effects

Shahsavar

Ashory

Khatibi

2022

Journal of Intelligent Material Systems and Structures

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“…In a constrained vibro-impact system, the force and the energy were transferred to the object providing the constraint, as well as a huge change of vectors such as velocity and acceleration. [14][15][16][17][18][19][20][21] In a multi-degree-of-freedom vibro-impact system, the response behaviors were correlated and coupled, and the solution of the motion equations were more complicated. Xue and Fan 22 and Fan and Yang 23 studied the 2-degree-of-freedom vibroimpact system with multiple constraints and analyzed the periodic response of the system after establishing the boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Vibration control analysis of the power head for a rotary drilling rig

Lei

Diao

2019

Advances in Mechanical Engineering

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Impacting between the multilayer Kelly bar and the power head has a detrimental effect on the drilling system and may cause huge losses to the construction engineering and machinery. This study is a further development of the vibro-impact mechanism, and especially, the study considers the constraint of the steel rope on the multilayer Kelly bar. Efficient analytical models are presented, and the total responses are obtained. Three types of displacement response are found by changing the matching relationship of global parameters. The first type has the optimal vibration control performance with the shortest path and no periodicity. The second type is inferior to the first type. The third type has the worst vibration-control performance with the longest path and periodicity. Then this article proposes the general feasibility to get the first type of displacement response and the most effective way is controlling the steel rope velocity. The research provides the foundation for the intelligent control of steel rope velocity on the rig machine.

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Numerical Analysis of Steady State and Transient Motion of a Vibro-Impact System with Non-ideal Excitation with a Nonlinear Spring

Hajradinovic

Zukovic

2021

Lecture Notes in Networks and Systems

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Analysis of force and energy density transferred to barrier in a single degree of freedom vibro-impact system

Cited by 6 publications

References 17 publications

Increasing the efficiency of a bistable cantilever beam energy harvester exploiting vibro-impact effects

Increasing the efficiency of a bistable cantilever beam energy harvester exploiting vibro-impact effects

Vibration control analysis of the power head for a rotary drilling rig

Numerical Analysis of Steady State and Transient Motion of a Vibro-Impact System with Non-ideal Excitation with a Nonlinear Spring

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