A rigid-flexible coupled dynamic model of a flip-flow vibrating screen considering the effects of processed materials

Lin, D; Ji, JC; Wang, X; Wang, Y; Xu, N; Ni, Q; Zhao, G; Feng, K

A rigid-flexible coupled dynamic model of a flip-flow vibrating screen considering the effects of processed materials

Lin, D Ji, JC Wang, X Wang, Y Xu, N Ni, Q Zhao, G Feng, K

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Powder Technology, 2023, 427
Issue Date:: 2023-09-01

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Field	Value	Language
dc.contributor.author	Lin, D
dc.contributor.author	Ji, JC
dc.contributor.author	Wang, X
dc.contributor.author	Wang, Y
dc.contributor.author	Xu, N
dc.contributor.author	Ni, Q
dc.contributor.author	Zhao, G
dc.contributor.author	Feng, K
dc.date.accessioned	2023-11-07T02:07:31Z
dc.date.available	2023-11-07T02:07:31Z
dc.date.issued	2023-09-01
dc.identifier.citation	Powder Technology, 2023, 427
dc.identifier.issn	0032-5910
dc.identifier.issn	1873-328X
dc.identifier.uri	http://hdl.handle.net/10453/173142
dc.description.abstract	Flip-flow vibrating screens (FFVSs) are the critical screening equipment for classifying and dewatering wet materials in mining processing industry. During the screening process, the FFVSs can be regarded as a complex rigid-flexible coupled multi-body system where the screening operation and the dynamics of two screen frames interact. However, there exists no mechanical model that can describe the dynamics of FFVSs during the screening process. The lack of such a dynamic model causes the amplitudes of the main and the floating screen frames unpredictable after the processed materials are loaded on FFVSs, which affects the screening performance and the service life of FFVSs. To bridge this research gap, the loaded dynamic model of a FFVS is established in this paper. First, dynamic tests are performed to investigate the equivalent stiffness and the equivalent damping of the force along the screen surface which is induced by the processed materials. Then, the proposed model of the FFVS is verified qualitatively by existing experimental results, and the effects of the processed materials on the dynamics of the FFVS are explored by comparing the non-load dynamics of the FFVS. Finally, the sensitivities of the main parameters on the dynamic response are investigated based on Sobol's method of global sensitivity analysis. It is shown that the proposed rigid-flexible coupled multi-body dynamic model of the FFVS can not only effectively reveal the dynamic response of FFVS in the screening process, but can also provide a reference for modelling the dynamics of the screening process of other screening equipment.
dc.language	English
dc.publisher	ELSEVIER
dc.relation	http://purl.org/au-research/grants/arc/LP220100389
dc.relation.ispartof	Powder Technology
dc.relation.isbasedon	10.1016/j.powtec.2023.118753
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0913 Mechanical Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Chemical Engineering
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4017 Mechanical engineering
dc.subject.classification	4019 Resources engineering and extractive metallurgy
dc.title	A rigid-flexible coupled dynamic model of a flip-flow vibrating screen considering the effects of processed materials
dc.type	Journal Article
utslib.citation.volume	427
utslib.for	0904 Chemical Engineering
utslib.for	0913 Mechanical Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2023-11-07T02:07:27Z
pubs.publication-status	Published
pubs.volume	427

Abstract:

Flip-flow vibrating screens (FFVSs) are the critical screening equipment for classifying and dewatering wet materials in mining processing industry. During the screening process, the FFVSs can be regarded as a complex rigid-flexible coupled multi-body system where the screening operation and the dynamics of two screen frames interact. However, there exists no mechanical model that can describe the dynamics of FFVSs during the screening process. The lack of such a dynamic model causes the amplitudes of the main and the floating screen frames unpredictable after the processed materials are loaded on FFVSs, which affects the screening performance and the service life of FFVSs. To bridge this research gap, the loaded dynamic model of a FFVS is established in this paper. First, dynamic tests are performed to investigate the equivalent stiffness and the equivalent damping of the force along the screen surface which is induced by the processed materials. Then, the proposed model of the FFVS is verified qualitatively by existing experimental results, and the effects of the processed materials on the dynamics of the FFVS are explored by comparing the non-load dynamics of the FFVS. Finally, the sensitivities of the main parameters on the dynamic response are investigated based on Sobol's method of global sensitivity analysis. It is shown that the proposed rigid-flexible coupled multi-body dynamic model of the FFVS can not only effectively reveal the dynamic response of FFVS in the screening process, but can also provide a reference for modelling the dynamics of the screening process of other screening equipment.

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http://hdl.handle.net/10453/173142