Fibre Spring-damper Computational Models in a Laboratory Mechanical System and Validation with Experimental Measurement

Polach, Pavel; Byrtus, Miroslav; Šika, Z.; Hajžman, Michal

doi:10.5890/dnc.2017.12.009

Cited by 4 publications

(4 citation statements)

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“…time histories of the weight position and of the force acting in the fibre, were monitored. Results of the experimental measurements were compared with the computational results obtained using three types of the fibre model: the force model Polach et al, 2017), the ANCF model (Bulín et al, 2017;Polach et al, 2018) and the point-mass model (Polach et al, 2020). Equations used for creating these models are given in the above mentioned literature.…”

Section: Weight-fibre-pulley-drive Laboratory Mechanical Systemmentioning

confidence: 99%

“…influences of the fibre transversal vibration, etc.) suitable for the simulations with the weigh-fibre-pulley-drive mechanical system was created (Polach et al, 2017). The number of degrees of freedom in kinematic joints of the multibody model of the weight-fibre-pulley-drive system is 5.…”

Section: Weight-fibre-pulley-drive Laboratory Mechanical Systemmentioning

confidence: 99%

“…The fibre stiffness (34⋅10 3 N/m) and the fibre damping coefficient (27.5 N⋅s/m) were considered to be system parameters of the phenomenological model (e.g. Polach et al, 2017). At simulating the experimental measurements for a "quicker" drive motion it was necessary to consider the velocity-dependent stiffness and the velocity-dependent damping "coefficient" in the fibre model for the calculation of dynamic response of the system (e.g.…”

Section: Weight-fibre-pulley-drive Laboratory Mechanical Systemmentioning

confidence: 99%

“…At simulating the experimental measurements for a "quicker" drive motion it was necessary to consider the velocity-dependent stiffness and the velocity-dependent damping "coefficient" in the fibre model for the calculation of dynamic response of the system (e.g. Polach et al, 2017). Frequencies of drive motion -i.e.…”

Section: Weight-fibre-pulley-drive Laboratory Mechanical Systemmentioning

confidence: 99%

See 3 more Smart Citations

Modelling of Dynamic Behaviour of Fibres and Cables

Polach¹,

Hajžman²,

Bulín³

2020

Engineering Mechanics 2020

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In this paper there are presented some possible approaches suitable for the modelling of the fibre and cable dynamics in the framework of various mechanical systems: force representation of a fibre, a pointmass model and an absolute nodal coordinate formulation. Experimental measurements focused on the investigation of the fibre behaviour were performed on the assembled weight-fibre and weight-fibre-pulleydrive laboratory mechanical systems. These mechanical systems were modelled using some of the mentioned methods and simulations of the experimental measurements were performed. The simulations aim was to create a phenomenological model of a fibre (cable). The obtained results are discussed.

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Section: Weight-fibre-pulley-drive Laboratory Mechanical Systemmentioning

confidence: 99%

Section: Weight-fibre-pulley-drive Laboratory Mechanical Systemmentioning

confidence: 99%

Section: Weight-fibre-pulley-drive Laboratory Mechanical Systemmentioning

confidence: 99%

Section: Weight-fibre-pulley-drive Laboratory Mechanical Systemmentioning

confidence: 99%

See 2 more Smart Citations

Modelling of Dynamic Behaviour of Fibres and Cables

Polach¹,

Hajžman²,

Bulín³

2020

Engineering Mechanics 2020

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Approaches to Fibre Modelling in the Model of an Experimental Laboratory Mechanical System

Polach

Hajžman

Bulín

2019

Multibody Dynamics 2019

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Active vibration damping for manufacturing machines using additional cable mechanisms: conceptual design

Neusser

Nečas

Pelikán

et al. 2022

Int J Adv Manuf Technol

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Undesired vibration is a common issue when dealing with manufacturing machines, especially when dealing with thin structures. To decrease the external disturbance sensitivity of such systems, represented for example by machine tool quill, the auxiliary cable structure is attached to the system. The auxiliary cable structure increases system damping and decreases undesired structure vibrations by the passive or active way, depending on the deployment and purpose. In this article, cables are attached to the end-effector to suppress undesired vibrations and related experimental stand is prepared. Experimental stand parameters are identified using least square method. The control strategy using pole placement is presented and its suitability is verified using external disturbance force. The frequency analysis shows the promising behaviour of controlled cable structure attached to the original system as well as the experimental results.

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Fibre Spring-damper Computational Models in a Laboratory Mechanical System and Validation with Experimental Measurement

Cited by 4 publications

References 0 publications

Modelling of Dynamic Behaviour of Fibres and Cables

Modelling of Dynamic Behaviour of Fibres and Cables

Approaches to Fibre Modelling in the Model of an Experimental Laboratory Mechanical System

Active vibration damping for manufacturing machines using additional cable mechanisms: conceptual design

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