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Thermal stress analysis of ceramic - coated diesel engine pistons based on the wavelet finite - element method / Bin Zhao in Journal of engineering mechanics, Vol. 138 N° 1 (Janvier 2012) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 138 N° 1 (Janvier 2012) . - pp.143-149 Titre : Thermal stress analysis of ceramic - coated diesel engine pistons based on the wavelet finite - element method Type de document : texte imprimé Auteurs : Bin Zhao, Auteur Année de publication : 2012 Article en page(s) : pp.143-149 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Ceramic-coated  piston  Wavelet  finite-element  method  Thermal  stress Résumé : To analyze the thermal stress distribution of ceramic-coated pistons, the wavelet finite-element was constructed by using the Daubechies wavelet scale function as the interpolating function. The thermal stress distributions of the conventional and ceramic-coated diesel engine pistons were obtained, respectively. The calculated results obtained by wavelet finite-element method were compared with test results and the simulation results gained by ANSYS software. Through analyzing the calculation results, the wavelet finite-element method was convergent and had higher analysis precision than the traditional finite-element method. The wavelet finite-element method avoids the numerical oscillation during analysis of the transient-state thermal stress fields of the piston. The wavelet finite-element method showed advantages for analyzing the high gradient problems. The wavelet finite-element method provides a preferable theoretical basis for optimizing the design of the ceramic-coated diesel piston. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000302 [article] Thermal stress analysis of ceramic - coated diesel engine pistons based on the wavelet finite - element method [texte imprimé] / Bin Zhao, Auteur . - 2012 . - pp.143-149. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 138 N° 1 (Janvier 2012) . - pp.143-149 Mots-clés : Ceramic-coated  piston  Wavelet  finite-element  method  Thermal  stress Résumé : To analyze the thermal stress distribution of ceramic-coated pistons, the wavelet finite-element was constructed by using the Daubechies wavelet scale function as the interpolating function. The thermal stress distributions of the conventional and ceramic-coated diesel engine pistons were obtained, respectively. The calculated results obtained by wavelet finite-element method were compared with test results and the simulation results gained by ANSYS software. Through analyzing the calculation results, the wavelet finite-element method was convergent and had higher analysis precision than the traditional finite-element method. The wavelet finite-element method avoids the numerical oscillation during analysis of the transient-state thermal stress fields of the piston. The wavelet finite-element method showed advantages for analyzing the high gradient problems. The wavelet finite-element method provides a preferable theoretical basis for optimizing the design of the ceramic-coated diesel piston. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000302