| Titre : | Thermal stress analysis of ceramic - coated diesel engine pistons based on the wavelet finite - element method (2012) |
| Auteurs : | Bin Zhao, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Journal of engineering mechanics (Vol. 138 N° 1, Janvier 2012) |
| Article en page(s) : | pp.143-149 |
| Note générale : | Mécanique appliquée |
| Langues : | Anglais |
| Tags : | 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 |
