Wei Shi
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Gender:Male
Date of Birth:1983-11-23
Alma Mater:Pohang University of Science and Technology(Korea)
Degree:Doctoral Degree
School/Department:Faculty Of Infrastructure Engineering
Discipline:Port, Coastal and Offshore Engineering
Business Address:Room 707, No.2 Administration Building, 2 Linggong Road, Dalian, 116024, P.R. China
E-Mail:weishi@dlut.edu.cn
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Indexed by:期刊论文
Date of Publication:2018-07-01
Journal:JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
Included Journals:SCIE
Volume:32
Issue:7
Page Number:3065-3072
ISSN No.:1738-494X
Key Words:Structural analysis; Drive-train; Dynamics; Fourier transform; Shaft flexibility
Abstract:In the previous research, shaft torsional flexibility was only considered in the wind turbine drivetrain. However, if shaft is longer and thinner than other parts, two components which are connected by shaft affect each other by rotation about bending axis. It means that there are deflections of shaft about not only torsional direction but also bending direction. In this research, we introduced spherical joint which have 3 spring stiffness about all rotational axis to define shaft. And we analyzed that how shaft bending affect drivetrain rotation, translation motion and gear mesh contact force. To do these processes, we simulated the 3-dimensional wind turbine drive train model which has bearing stiffness, gear mesh stiffness, and shaft flexibility. The gear mesh stiffness was defined by Fourier series. And the equation of motion was acquired by Lagrange equation and kinematical constraints to represent shaft flexibility. About numerical analysis, the Newmark method was used to get results. Lastly, fast Fourier transform which converts results from time domain to frequency was used.
Wei Shi, PCOSS-Fellow, doctor, doctoral supervisor(Major: port, coastal and offshore engineering), Liaoning Province "Xingliao elite plan" top young talents, Dalian University of Technology "Xinghai 1000 youth talents" plan, Dalian talents in short supply. In February 2013, he graduated from the department of mechanical engineering, Pohang University of Science and Technology and obtained the doctor's degree in mechanical engineering. In 2012, he was awarded the outstanding self-funded scholarship for overseas students by China scholarship council. From 2014 to 2016, he joined the research group of academician Torgeir Moan of Norwegian University of Science and Technology as a postdoctoral research fellow. In July 2016, he joined Dalian University of Technology (associate professor). In 2017, he obtain Dalian University of Technology "Xinghai 1000 youth talents plan", and he was appointed as a PCOSS-Fellow.In July 2018, he was appointed as doctoral superrvisor.He was selected as one of the first batch of "xingliao elite plan" young top talent in liaoning Province.
He is a member of the International Society of Offshore and Polar Engineers, the Korean Society for New and Renewable Energy, Korean Wind Energy Association and the Wind Energy Professional Committee of the Chinese Renewable Energy Association. He is the invited reviewer of Ocean engineering, Marine structures, Energies, International Journal of Energy Research and other International journals.For many years engaged in offshore wind generator dynamics analysis, he has made a series of important research results on the offshore wind generator dynamics analysis in cold regions and the air - hydrod - elastic -control multidisciplinary coupling modeling and analysis of offshore wind generator. In recent five years, a total of more than 30 papers, 12 SCI articles, 15 EI articles has been published and he has also published a number of achievements in Renewable Energy, Cold Region of the international journal of Science and Technology, etc.According to Web of Science, it was cited 74 times;According to statistics from Google scholar, the total number of citations was 477, with an H factor of 11.
Researcher ID: H-8019-2015
Researchgate ID: https://www.researchgate.net/profile/Wei_Shi15
Google scholar: https://scholar.google.com/citations?user=R2AwuC0AAAAJ&hl=zh-CN
Research Focus
1.Research on Ice Load of Offshore Wind Turbines
2.Multi-body Dynamics Analysis of Wind Turbine Drivetrain
3. Multidisciplinary Coupling Analysis of Offshore Wind Turbines
4. Model Research of Floating Wind Turbines
Welcome students of mechinery, ocean engineering, port, coastal and offshore engineering, mechanics, hydralic and hydro-power engineering and other related majors to apply for the examination！
Note: We look forward to the participation of graduate students with relevant professional backgrounds such as machinery, marine engineering, port, coastal and offshore engineering, mechanics, hydraulic and hydro-power engineering. We has extensive cooperation and exchange with overseas countries in the field of wind energy and oceaneering. For excellent students who are interested in going abroad for further study, they can be recommended to go abroad for doctoral degree or joint training in China and foreign countries!
1. Welcome to apply for the postgraduate program of Research Center of Deep-sea Engineering.
(1) Academic Masters:
Choose either of the two research directions, "07 New Ocean Engineering Structural Design and Analysis” and “08 Ocean Engineering Structural Health Monitoring and Advanced Experimental Technology” under the secondary discipline "081505 Port, Coastal and Offshore Engineering".
(2) Professional masters:
Choose the direction of "Port, Coastal and Offshore Engineering" under "085214 (Professional Degree)Hydraulic Engineering".
2. Welcome to apply for doctoral degree in Research Center of Deep-sea Engineering.
Research direction:
(1) Optimum design of offshore floating wind turbine;
(2) Hybrid model experiment of offshore wind turbines;
(3) Other relevant directions of offshore wind turbines (determined according to students' interests).
