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Dynamic response solution in transient state of viscoelastic road under moving load and its application / Lv, Pengmin in Journal of engineering mechanics, Vol. 136 N° 2 (Fevrier 2010) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 136 N° 2 (Fevrier 2010) . - pp. 168-173 Titre : Dynamic response solution in transient state of viscoelastic road under moving load and its application Type de document : texte imprimé Auteurs : Lv, Pengmin, Auteur ; Tian, Runli, Auteur ; Liu, Xiaoyun, Auteur Article en page(s) : pp. 168-173 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Moving  loads  Viscoelasticity  Pavements  Transient  response. Résumé : In order to study the dynamic response of an asphalt road, a dynamic model of the road under a moving load is proposed, in which the viscoelastic characteristics of the base and pavement are all considered, the pavement is regarded as an infinite beam on a Kelvin viscoelastic base. By using Green's functions, Laplace transforms, and Fourier transforms, the analytical solution in transient is deduced. As the viscosity of the pavement is included in the model, the analytical solution can be used to investigate more of the factors that affect the dynamic response, such as vehicle speed, temperature, and road material properties. Using this analytical solution, some numerical calculations are given to illustrate the effects of vehicles' speeds and different damping on the deflection with the displacement. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000 [...] [article] Dynamic response solution in transient state of viscoelastic road under moving load and its application [texte imprimé] / Lv, Pengmin, Auteur ; Tian, Runli, Auteur ; Liu, Xiaoyun, Auteur . - pp. 168-173. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 136 N° 2 (Fevrier 2010) . - pp. 168-173 Mots-clés : Moving  loads  Viscoelasticity  Pavements  Transient  response. Résumé : In order to study the dynamic response of an asphalt road, a dynamic model of the road under a moving load is proposed, in which the viscoelastic characteristics of the base and pavement are all considered, the pavement is regarded as an infinite beam on a Kelvin viscoelastic base. By using Green's functions, Laplace transforms, and Fourier transforms, the analytical solution in transient is deduced. As the viscosity of the pavement is included in the model, the analytical solution can be used to investigate more of the factors that affect the dynamic response, such as vehicle speed, temperature, and road material properties. Using this analytical solution, some numerical calculations are given to illustrate the effects of vehicles' speeds and different damping on the deflection with the displacement. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000 [...]