Vibro-impact responses of capsule system with various friction models

Liu, Yang; Pavlovskaia, Ekaterina; Hendry, D.; Wiercigroch, Marian

doi:10.1016/j.ijmecsci.2013.03.009

Cited by 86 publications

(59 citation statements)

References 23 publications

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“…This paper presents a verification on a novel experimental rig of the vibro-impact capsule model, which has been studied numerically by Liu et al in [1][2][3]. The capsule is excited by the harmonic force applied to the inner mass and the proposed mathematical model interprets the interactions between the inner mass and the capsule by assuming them as a whole possessing intrinsic stiffness and damping.…”

Section: Discussionmentioning

confidence: 99%

“…The dynamic test was to give the capsule an arbitrary initial speed v by pushing it gently and measure the travel distance of the capsule d subject to dynamic friction. The dynamic friction coefficients are marked by crosses in the figure, and they were found to be well approximated by the Coulomb Stribeck model [2] given by…”

Section: Parameters Identificationmentioning

confidence: 99%

“…For example, varying the frequency of external excitation in the range of ω ∈ (0, 0.4) allows to validate the results presented in [3] but also to demonstrate some new finding. Also, an ideal secondary linear spring assumption used in previous studies in [1][2][3] is discussed in this paper and the implications for the presented experimental set up are revealed.…”

Section: Introductionmentioning

confidence: 99%

“…[4]). On the other hand, when the force is applied to the inner mass, the interaction between the capsule and the inner mass needs to be described, and Liu et al [1][2][3] used intrinsic stiffness and damping of the internal connection to consider overall dynamics of the capsule under applied harmonic force. In order to verify this modelling approach, a novel experimental rig was designed and manufactured, and an experimental study of the vibro-impact capsule system is presented in this paper.…”

Section: Introductionmentioning

confidence: 99%

“…the stiffness ratio, and the frequency and the amplitude of the excitation. In [2], the dynamic analysis of the capsule system in various friction environments was performed, while in [3] forward and backward motion control of the system was investigated using a position feedback controller. This paper provides an experimental verification of the vibroimpact capsule model proposed in [1].…”

Section: Introductionmentioning

confidence: 99%

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Experimental verification of the vibro-impact capsule model

2015

Self Cite

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In this paper an experimental verification of the vibro-impact capsule model proposed by is presented. The capsule dynamics is investigated experimentally by varying the stiffness of the support spring, and the frequency and the amplitude of excitation. The novel design of the experimental set up is discussed, and comparisons between the experiments and numerical simulations are presented showing a good agreement. The conducted bifurcation analysis indicates that the behaviour of the system is mainly periodic and that a fine tuning of the control parameters can significantly improve the performance of the system. The main findings provide a better insight for the vibro-impact systems subject to nonlinear friction, and the experimental rig can be used to predict the dynamic behaviour of these systems.

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Section: Discussionmentioning

confidence: 99%

Section: Parameters Identificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental verification of the vibro-impact capsule model

2015

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Optimization of the rectilinear motion of a capsule system along a rough plane

Figurina

Glazkov

2020

Z Angew Math Mech

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A rectilinear motion of a capsule system along a horizontal rough plane is considered. The system consists of a housing and an internal mass moving periodically along an inclined straight guide rigidly connected to the housing. The friction between the housing and the underlying plane is assumed to be Coulomb's one. The motion of the housing with a periodically changing velocity is investigated. Such a motion may be reversible, in which case the housing alternately moves forward and backward, or irreversible, in which case the housing moves forward or stays at rest and never moves backward. The problem under consideration is the maximization of the distance traveled by the housing for a period with respect to the parameters of the system, for both reversible and irreversible modes of the motion.

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