2024-02-19

The Probability of Ship Collision during the Fully Submerged Towing Process of Floating Offshore Wind Turbines have been published in the journal Sustainability.

In the context of the rapid development of the green energy industry, the Floating Offshore Wind Turbines (FOWTs)  project is the focus of the current green sustainable development of energy. However, most studies have focused on the design and manufacture of the Wind Turbines before installation and the movement and response after installation, and have studied less the collision risk that is most likely to occur during the towing of the FOWTs to the site. Based on the analytical model construction method, this study takes the Wanning Floating Offshore Wind Farm (FOWF)  as the research object, expands on the widely recognized Pedersen collision probability assessment model, and creatively develops the probability assessment calculation model of collision with other ships during the towed transport of FOWTs in non-channel areas. The results show that the probability of ship collision in towed transport is mainly affected by regional ship density, distribution and sailing speed. This study makes up the gap in the field of risk assessment during installation of deep-water FOWTs.

Note: The first author of this paper is Li Yihong, a postdoc, and I am the corresponding author. The authors also include Liu Longxiang, a master's student, and Associate Professor Li Sunwei. The research results were supported by Guangdong Basic and Applied Basic Research Foundation and Shenzhen Science and Technology Commission.

2024-01-30

"A mechanical analysis method and system for fan installation based on digital twin" has obtained the invention patent certificate (patent number: ZL202311306512.6).

The invention discloses a mechanical analysis method and system for fan installation based on digital twin, which comprises the following steps: obtaining the basic information of the rod structure; According to the basic information of the bar structure, a bar element set and a load set are generated; According to the bar element set and the load set, the global stiffness matrix and the external load vector in the compressed sparse row matrix format are integrated. According to the global stiffness matrix and the external load vector, the global displacement vector is obtained by the conjugate gradient method. According to the global displacement vector, a set of deformed member elements is obtained. According to the set of deformed bar elements, the stress distribution results of the bar structure are obtained. The invention accelerates the storage and solving efficiency of the matrix without loss of effective information, so that the calculation accuracy can be taken into account while the calculation efficiency can be effectively improved, and the rapid modeling and calculation of complex and large structures can be realized.

Note: The inventors of this patent also include doctoral student Min Yantao, Academician Zhang Jianmin, doctoral student Liu Yi, master student Ning Houchun, Associate Professor Li Sunwei and Associate Professor Li Binbin.

2023-12-31

On December 24, 2023, the founding meeting of the eighth Editorial Committee and the first working meeting of the Journal of Graphics was successfully held in Beijing. The conference brought together leaders, guests, editorial board members and editorial department members from all over the country, a total of 66 people attended.

At the meeting, Professor Zhao Gang, chairman of the China Graphics Society, and Professor Wang Guoping, chief editor, successively announced the list of chief editor and deputy editor of the eighth Editorial Board of the Journal of Graphics, as well as the list of editorial board consultants and editorial board members, and issued a letter of appointment for the new incumbents. Among them, I am very honored to be awarded the honor of my excellent editorial board, and re-elected as one of the members of the eighth editorial board. This honor and appointment is not only a recognition of my personal academic ability, but also a recognition of my active exploration in the field, and I will continue to work with other outstanding scholars to participate in the editorial work of the journal, committed to providing high-quality academic content.

This meeting not only marks the formal establishment of the new editorial board, but also lays a solid foundation for the future development of the journal. Under the leadership of the new editorial Board, we will work together to continuously improve the academic level of the journal to meet the needs of readers in the field of graphics. We will adhere to the principles of academic rigor and innovation, and strive to promote the progress of academic research in graphics, and present more influential academic results to readers.

2023-12-08

The local standard of Guangdong Province, "Technical Standard for basic platform of city information model" (No. DBJ/T15-262-2023), which I participated in, has recently been officially released and will be implemented from April 1, 2024.

This standard is revised in accordance with the requirements of the Notice of the Guangdong Provincial Department of Housing and Urban Rural Development on the Issuance of the 2020 Guangdong Province Engineering Construction Standard Formulation and Revision Plan. After extensive investigation and research by the standard preparation team, practical experience has been carefully summarized, relevant advanced domestic and foreign standards have been referenced, and opinions have been widely solicited. The main content includes: 1. General provisions; 2. Terms and Codes; 3. Basic Requiqements; 4. Platform functions; 5. Platform data; 6. Platform Maintenance and Security.

The implementation of this standard will promote the construction, management, and operation of standardized urban information model basic platforms, promote urban digital transformation and high-quality development, and advance the modernization of urban governance systems and governance capabilities.

Note: The participating standard writers include Wang Yonghai, Bao Shitai, Cao Shubing, Qiao Changjiang, Li Dongliang, Chen Shunqing, Wang Yang, Li Jiahui, Zhou Zilu, Lin Aijia, Huang Lixin, Luo Zhihua, Tang Zhupeng, Peng Jinshuang, Liu Yuanliang, Luo Guanxin, Liu Yong, Zhang Sai, Luo Yuanfeng, Hu Zhenzhong, Chen Hang, Li Qin, Wang Zhan, Liang Haofei, Chen Biao, Sun Jianlong, Zhou Juhong, Dong Nan, and Gao Ge.

2023-12-05

With the support of the National Key R&D Program, National Natural Science Foundation of China, and Guangdong Provincial Basic and Applied Basic Research Fund, the textbook "Civil and Building Engineering CAE" has been published and distributed by China Construction Industry Press. This textbook was co edited by myself, Lin Jiarui from the School of Civil Engineering Tsinghua University, Deng Yichuan from the School of Civil Engineering and Transportation at South China University of Technology, and members of the research group, Zhu Shiyi, Jia Weilu, Leng Shuo, Wu Langtao, Yuan Shuang, Song Shengyu, Yan Kexiao, and others.

In order to meet the needs of senior undergraduate and graduate students in higher education institutions for CAE technology, the writing team closely combined with the cutting-edge development of the discipline, systematically sorted out the characteristics, connotations, and types of CAE technology, reshaped the curriculum outline, and wrote this textbook. The textbook is divided into eight chapters, including introduction, visualization technology of CAE system, modeling technology of CAE system, discretization technology of CAE system, virtualization technology of CAE system, networking technology of CAE system, automation technology of CAE system, and intelligence technology of CAE system, totaling 587 thousand words.

This book emphasizes the foundation of knowledge, emphasizes the explanation of concepts and principles, and focuses on showcasing the latest development achievements and future trends of CAE technology in the field of civil and construction engineering. We strive to introduce these complex technologies in a simple and easy to understand manner, so that senior undergraduate and graduate students can better understand and master these technologies. I hope that through the study of this book, readers can master the commonly used CAE technologies in the field of civil and construction engineering, improve their ability to solve practical engineering problems, and lay a solid foundation for future research and career.

This textbook can be used as a teaching material for undergraduate and graduate students majoring in civil engineering, architecture, marine engineering, and construction management in ordinary higher education institutions, as well as for professional and technical personnel in related fields to learn and reference.

Note: For the convenience of teachers teaching, the author of this textbook has made a self-made free courseware, and the request method is: 1. Email jckj@cabp.com.cn ; 2. Telephone (010) 58337285; 3. Jiangong Academy http://edu.cabplink.com .

Book purchase link: https://item.jd.com/10093037637234.html.