Experimental analysis of dynamic behavior of elastic visco-plastic beam under repeated mass impacts

Guo, Yuanyuan; Yin, Xiaochun; Yu, Bo; Hao, Qiming; Xiao, Xin; Jiang, Liang; Wang, Hui; Chen, Chuanqing; Xie, Wenhao; Ding, Huaiping; Yuan, Hao

doi:10.1016/j.ijimpeng.2022.104371

Cited by 12 publications

(2 citation statements)

References 46 publications

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“…He performed the repeated drop weight impact tests on beams and found the pseudo-shakedown phenomenon during repeated impacts [35]. Guo [36] studied the repeated impact behaviors of elastic-plastic beam.…”

Section: Introductionmentioning

confidence: 99%

Transient Responses of Repeated Transverse Impacts on Beams

Wang

Mao²,

Wu³

et al. 2023

Applied Sciences

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In this paper, the eigenfunction expansion method combined with local contact models are presented to analyze the repeated impact behaviors between the sphere and the beam. The simulations are verified with the experimental results of a simply-supported beam struck 91 times by a sphere. In order to clarify the validity of the eigenfunction expansion method to solve the repeated transverse impacts on beams, the simulation results of the spring-mass method are also compared with the experiments. It shows that with appropriate contact models, the eigenfunction expansion method can predict agreeable results with the experimental results, especially the impact behaviors (including the accumulated permanent indentation, the coefficient of restitution and the separation velocity of the sphere) representing energy dissipations, due to the consideration of structural vibrations, local impact behaviors, as well as the wave propagations. The comparisons between the eigenfunction expansion method and the spring-mass model show that the wave propagations are important for energy dissipations, which cannot be neglected in flexible structure impacts. The studies are important for the analysis of repeated impact response of beam structures.

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Section: Introductionmentioning

confidence: 99%

Transient Responses of Repeated Transverse Impacts on Beams

Wang

Mao²,

Wu³

et al. 2023

Applied Sciences

Self Cite

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“…Collisions and impacts are common physical phenomena in complex engineering structures and systems, which can significantly affect their stability, reliability, and even cause irreversible damage to mechanical equipment. Such systems, referred to as vibroimpact systems, are typically described using differential equations with constraints due to the non-smooth nature of collisions and impacts [ 1 , 2 , 3 ]. This inherent non-smoothness introduces strong nonlinearity into the system dynamics, leading to complex behaviors and a high sensitivity to parameter changes [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Response Analysis of the Three-Degree-of-Freedom Vibroimpact System with an Uncertain Parameter

Yang,

Deng,

et al. 2023

Entropy

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The inherent non-smoothness of the vibroimpact system leads to complex behaviors and a strong sensitivity to parameter changes. Unfortunately, uncertainties and errors in system parameters are inevitable in mechanical engineering. Therefore, investigations of dynamical behaviors for vibroimpact systems with stochastic parameters are highly essential. The present study aims to analyze the dynamical characteristics of the three-degree-of-freedom vibroimpact system with an uncertain parameter by means of the Chebyshev polynomial approximation method. Specifically, the vibroimpact system model considered is one with unilateral constraint. Firstly, the three-degree-of-freedom vibroimpact system with an uncertain parameter is transformed into an equivalent deterministic form using the Chebyshev orthogonal approximation. Then, the ensemble means responses of the stochastic vibroimpact system are derived. Numerical simulations are performed to verify the effectiveness of the approximation method. Furthermore, the periodic and chaos motions under different system parameters are investigated, and the bifurcations of the vibroimpact system are analyzed with the Poincaré map. The results demonstrate that both the restitution coefficient and the random factor can induce the appearance of the periodic bifurcation. It is worth noting that the bifurcations fundamentally differ between the stochastic and deterministic systems. The former has a bifurcation interval, while the latter occurs at a critical point.

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Analytical and numerical modelling of repeated impacts on elastic-strain hardening beams

Shi

Zhu

2022

Int J Mech Mater Des

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Experimental analysis of dynamic behavior of elastic visco-plastic beam under repeated mass impacts

Cited by 12 publications

References 46 publications

Transient Responses of Repeated Transverse Impacts on Beams

Transient Responses of Repeated Transverse Impacts on Beams

Response Analysis of the Three-Degree-of-Freedom Vibroimpact System with an Uncertain Parameter

Analytical and numerical modelling of repeated impacts on elastic-strain hardening beams

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