1.汇报安排

题目：参加IPMS 2016 国际会议总结报告会

时间：2016年6月2日19:00-19:20

地点：科技园西五楼北楼会议室A228

报告人：博1213班——薛晓峰

学号：4112001020

指导教师：陈雪峰 教授

2 .参加国际会议信息

会议名称：8th International Conference “Inverse Problems: Modeling & Simulation”

会议日期：23-28 May, 2016

会议地点：Fethiye, Turkey

会议简介：The conference is multidisciplinary and international, whose objective is to bringing together scientists working on various topics of inverse problems in diverse areas, such as mathematics, engineering, physics, geology, chemistry, biology, medicine, material science, nanotechnology, meteorology, finance, and many areas in the fields of biotechnology, genetics and ecology.

This conference will be held under the auspices of The Eurasian Association on Inverse Problems (EAIP) and also the leading international journals "Inverse Problems", "Journal of Inverse and Ill-Posed Problems", "Inverse Problems in Science and Engineering". The main aim of the conference is to bring together all classical and new inverse problems areas from various international scientific schools and to discuss new challenges of inverse problems in current interdisciplinary sciences.

3.参会论文信息

Title: Load identification in one dimensional structure based on hybrid finite element method

Author: Xiaofeng Xue, Xuefeng Chen, Baijie Qiao, Xingwu Zhang

Abstract: For many applications, direct measurement of loads in mechanical systems is difficult or even impossible. By combing modified Hermitian finite element method and bar element in ANSYS, a hybrid finite element method is proposed. Load identification technique of Hybrid finite element method is developed by the Newmark algorithm. The modified Hermitian cubic spline wavelets on interval can avoid the boundary problem of the original Hermitian interpolation functions. In this paper, hybrid elements are substituted into finite element functions to solve the load identification problem. Load identification law was researched under different excitation cases in rod and Timoshenko beam. Regularization method is adopted to solve ill-posed inverse problem of load identification. Hybrid and Hermitian elements can accurately identify the applied load compared with ANSYS elements. Numerical results show that the algorithm of hybrid elements is effective. The correctness of the load identification finite element method can be verified through experiment results. Hermitian wavelet finite element methods has high accuracy advantage but it is difficult to apply the engineering practice because of the wavelet interpolation function presents complexity. In practical engineering, commercial software ANSYS can analyze complex mechanical model but the precision of ANSYS is low. Hybrid elements have the high accuracy advantage by combining the ANSYS with Hermitian wavelet elements. Complex structure can be analyzed by using the Hybrid finite element methods which can be obtained with high accuracy in the crucial component of complex structure.

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