Research on Finite Element Model Updating in the High-Temperature Environment Based on the Global Approximate Function
He Cheng, He Huan, Chen Guoping
1.The State Key Laboratory of Mechanics and Control for Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China 2.Institute of Vibration Engineering Research, Nanjing University of Aeronautics and Astronautics Nanjing, 210016, P.R.China
Abstract：In this paper，a method have been proposed to investigate the problem of finite element model updating in the high-temperature environment using the global approximate function. In this method the temperature field of the structures has been updating as the first stage, which is taken into the structures dynamic model as initial conditions. Then it has finished the whole updating process, an application example-a wing finite element model is implemented with this method. The results from this new method are compared with those obtained from the traditional model updating methods, which show that model using the classification method can significantly improve the model updating efficiency and precision.
何 成;何 欢;陈国平 . 基于分级思想的高温环境结构动力学模型修正[J]. , 2012, 31(19): 145-150.
He Cheng;He Huan;Chen Guoping . Research on Finite Element Model Updating in the High-Temperature Environment Based on the Global Approximate Function. , 2012, 31(19): 145-150.
2012, Vol. 31 
