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Analysis of institutional authors

Baeza, LAuthor

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October 29, 2024
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Vibration of a truss structure excited a by moving oscillator

Publicated to: JOURNAL OF SOUND AND VIBRATION. 321 (3-5): 721-734 - 2009-01-01 321(3-5), DOI: 10.1016/j.jsv.2008.09.049

Authors:

Luis Baeza; Huajiang Ouyang
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Affiliations

Univ Liverpool, Dept Engn, Liverpool L69 3GH - Author
Univ Politecn Valencia, Dpto Ingn Mecan - Author

Abstract

This paper studies the vibration of a truss structure composed of a number of rigidly connected Timoshenko beams. The excitation is provided by a moving oscillator of an unsprung mass that supports mother mass through a spring (oscillator) and moves on top of (he truss structure. Each component beam of the structure is meshed with a number of Timoshenko beam elements. The finite-element (FE) modes of the whole structure are first obtained for the nodes of the FE mesh and then they are converted into an analytical form that is constructed over all the elements of the top deck of the truss through the element shape functions, whereby the location of the moving oscillator is easily tracked and the displacement continuity and force equilibrium conditions at the contact point can be easily implemented. This numerical-analytical combined approach has the advantage of the versatility of the FE method in dealing with structures (trusses or frames in this paper) of arbitrary configurations and the special efficiency and convenience of the analytical method in dealing with moving loads. Vibration of the truss structure and vibration of the oscillator are studied through simulated examples. It is found that the dynamic response can be several times higher than the relevant static response at high speeds. It is also found that the dynamic contact force can be much higher than its static value and may become negative if the contact between the oscillator and the truss is assumed to be constantly maintained. Interestingly, suitably chosen parameter values can bring the dynamic response and the dynamic contact force close to their respective static values. (C) 2008 Elsevier Ltd. All rights reserved.
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Keywords

Analytical methodsBeamsBridgesContact pointsDisplacement continuitiesDynamic contact forcesDynamic responseDynamicsFe methodsFinite elementsForce equilibriumsFunction evaluationMoving loadsMoving oscillatorsOscillators (mechanical)Parameter valuesParticle beamsRolling resistanceSeparationShape functionsStatic responseStatic valuesTimoshenko beamsTruss structuresTrussesUnsprung massVehicles

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal JOURNAL OF SOUND AND VIBRATION due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2009, it was in position 37/123, thus managing to position itself as a Q1 (Primer Cuartil), in the category Mechanics.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-03:

  • WoS: 13
  • Scopus: 13
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-03:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 23.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 23 (PlumX).
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: United Kingdom.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Baeza González, Luis Miguel) .

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