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Professor Ren Weixin, a Yangtze River Special Professor, was invited to give a research seminar on the subject of "Triangular Wavelet Finite Element Method and Its Application" to our staff and research students in the afternoon of March 22, 2019.The seminar was attended by more than 40 academic staff and postgraduate research students, including Vice Dean of our College Professor Hu Heng, Professor Li Shan, Professor Wu Zhijun and Associate Professor Liang Hongjun.


Professor Ren first briefly introduced the history of finite element method,the basic ideas, andthe problems in structural analysis and calculation with finite element software.This was followed by an introduction to Hermite interpolation triangular wavelet functions with good approximation and multi-resolution characteristics of wavelets, and the development of anadaptive and multi-resolution triangular wavelet finite element method.Based on the two-dimensional tensor product triangular wavelet and the principle of minimum potential energy, a unified finite element formulation for bending, stability and buckling of elastic thin plates under different boundary conditions was derived. A series of original research results obtained by applying this method to the analyses of deformation, vibration and stability of beams and frames were then presented.

After the seminar, the staff and students discussed the contents in depth with Professor Ren enthusiastically and passionately.This seminarhas enabled the faculty and students to understand the principle of triangular wavelet finite element method and the international research front of numerical methods. It has also benefited our staff and research students by broadeningour academic and research horizon.

C.V. of Professor Ren Weixin:

Prof. Ren Weixin earned a PhD in Bridge Engineering and was once a postdoctoral research fellowat Tsinghua University. He was the Dean of the School of Civil and Hydraulic Engineering, Hefei University of Technology from June 2011 to July 2018.He was promoted to a professor in 1995 and approved as a doctoral supervisor in 1996.He has made significant innovative contributions to the identification and application of bridge/structure working modal parameters, structural damage identification, wavelet finite element method and model updating, structural stability ultimate bearing capacity and so on, which are widely recognizedinternationally.His research outcomeshave been incorporated into the bridge design code of the Ministry of Railways and applied in some major bridge projects.So far hehas published three monographs and more than 350 academic papers, including over 130 international journal papers. These papers haveattracted more than 4,000 SCI citations with H-index = 29 and6,000 Google Scholar citations with H-index = 37.He has held and participated in more than 50 scientific research projects, including 7 NSFC funded projects since 2001. He has been listed in Elsevier's Highly Cited Scholars in global civil engineering disciplines in 2016 (more than 120 people in the world and 6 in mainland China); Elsevier's Most Cited Chinese Researchersfor five consecutive years from 2014 to 2018. He has reviewed numerous proposals for many national funding organisationsincluding the Australian Research Council (ARC) and the Hong Kong Government Fund (RGC). He has also acted as an external examiner for doctoral dissertations in Australia, New Zealand, Spain, India and Hong Kong.



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