Title :
Model updating applied to an missile structure
Author :
Ronghe Liu ; Kaiping Yu ; Kai Yang ; Wei Liu
Author_Institution :
Dept. of Astronaut. Sci. & Mech., Harbin Inst. of Technol., Harbin, China
Abstract :
The finite element (FE) model updating is an important method to accurate FE modeling for dynamic analysis of practical engineering structure. In this paper, a model updating method programmed by DMAP which is the secondary development language of the MSC. Nastran, realized the seamless connection of the updating method and the FE analysis software, and applied to a missile cabin structure based on the test data, for getting an accurate FE model. The results shows that the updated FE model is improved considerably, the analytical nature frequency is very close to the test value, and frequency response is also improved, which satisfies the engineering practical demand.
Keywords :
finite element analysis; missiles; structural engineering computing; DMAP; FE analysis software; MSC.Nastran; finite element model; missile cabin structure; secondary development language; Analytical models; Data models; Finite element methods; Frequency response; Mathematical model; Missiles; Predictive models; finie element; mode shape; model updating;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023543
