Method of taking into account constructional and technological casting modifications in solidification simulations

• Autorzy: Mikoda J. , Sczygiol N.
• Języki publikacji: EN

Abstrakty

EN

This paper presents the new approach to the problem of finite element mesh generation in case of constructional or technological changes in shape of the analysed area. The authorial method of mesh reconstruction, described in this article, creates meshes for modified areas by modification of mesh generated for the original areas. The following steps of reconstruction are described. These are: shape comparison, performed in order to detect changes and determine their types, removing these elements of original mesh that are located in modified parts of area and re-creating missing elements of new mesh. The authorial mesh generator, which enables to use the mechanism of mesh reconstruction is also described. Two examples of mesh reconstruction are presented in this article. The first example shows situation when constructional changes are implemented and the second one technological. These examples show that the described method allows to decrease time of mesh generation significantly. The last section of this article includes summary and conclusions.

Słowa kluczowe

EN

information technology in the foundry industry; mesh generator; advancing front method; mesh reconstruction; solidification simulations casting

PL

technologie informatyczne w odlewnictwie; rekonstrukcja siatki; generator siatki; symulacja krzepnięcia odlewów

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 4
• Strony: 147--152
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Mikoda J.

• Politechnika Częstochowska, Instytut Informatyki Teoretycznej i Stosowanej, ul. Dąbrowskiego 73, 42-201 Częstochowa, Polska

autor

Sczygiol N.

• Politechnika Częstochowska, Instytut Informatyki Teoretycznej i Stosowanej, ul. Dąbrowskiego 73, 42-201 Częstochowa, Polska

Bibliografia

• [1] N. Sczygiol, G. Szwarc, T. Olas, A. Nagórka, Object-oriented analysis of solidification modelled by finite elements (in Polish), Solidification of Metals and Alloys, No. 30 (1997), 233-242.
• [2] R. Dyja, J. Mikoda, 3D simulations of alloy solidification in the NuscaS system, Archives of Foundry Engineering (2010).
• [3] P.L. George, Automatic Mesh Generation, Application to Finite Element Methods, John Wiley & Sons (1991).
• [4] N. Sczygiol, J. Mikoda, A new advancing front finite element mesh generator (in Polish), KomPlasTech 2005, (2005) 183-190.
• [5] N. Sczygiol, J. Mikoda, Unstructured three dimension finite element mesh generation based on advancing front method (in Polish), KomPlasTech 2006, (2006) 61–68.
• [6] N. Sczygiol, J. Mikoda, Renewed Generation of Finite Elements Meshes in Parts of Domain Changing from Structural and Technological Respects, Proc. of RELMAS'2008. Assessment of Reliability of Materials and Structures: Problems and Solutions, No 6 (2008) 322-325.