2022-04-19

Approved by the Department of Housing and Urban-Rural Development of Guangdong Province, the Guangdong Provincial Engineering Construction Standard "City Information Modeling (CIM) Basic Platform Technical Standard", which I have participated in compiling, is soliciting the opinions of the competent departments of housing and urban-rural construction listed at all levels and all relevant units.

2022-03-29

Operability analysis of SWATH as a service vessel for offshore wind turbine in the southeastern coast of China has  published online in Ocean Engineerin.

SWATH (Small Waterplane Area Twin Hull) vessel is introduced as a novel application as SOV to be deployed off the coast of southeastern China, an investigation into the operability for walk-to-work (W2W) on-site service using the new type of vessel is conducted in this study. The operability of service operation vessels (SOV) is highly concerned with the cost, schedule, and weather window to the operation and maintenance of offshore wind farms. In this paper, The features of SWATH’s motion behavior are discussed by performing a seakeeping analysis, which is compared to a similar size monohull SOV. The limits of W2W and other operating conditions are then modeled and analyzed by the numerical method established in the frequency domain. The results show that SWATH has excellent operability as well as the robustness against arbitrary wave heading. Finally, The fuel consumption under the high sea-state shows higher usage compared to the monohull by a qualitative estimation using the second-order mean drift forces. When the damping is insufficient, the optimization of SWATH geometry and proper damping device may help further improve the operability by suppressing resonant heave and roll.

Note: Ocean Engineerin belongs to the top of the field of engineering and technology magazine, with a 2021 impact factor of 3.795. Associate Professor Li Binbin of The Tsinghua Shenzhen International Graduate School is the first author and co-corresponding author of the paper.

2022-03-25

Epidemic prevention is not slack, scientific research does not stop, tsinghua SIGS research group teachers and students are making full use of online resources to do scientific research. At the same time, I am very grateful to the Graduate School for publicizing our research group. (See this link for details)

During the epidemic period, the research group adopted the mechanism of "one-two-three-four" and "two-place double drive" to carry out scientific research activities. Among them, "one" is to insist on a weekly group meeting, "two" is to ensure communication with the two students, and "three" is to solidify and promote the three-level guidance. The "fourth" is to actively strengthen the cooperation between the four sides. Under the impetus of this mechanism, the research group studied and scientific research in an orderly manner, and the students also actively reported on the recent work progress, and the results were good.

I believe that by the end of the epidemic, it will be a clear sky and a bright sun. My students and I will continue to make great strides...

2022-02-24

The 8th China Graphics Conference will be held in Tai'an, Shandong Province from July 22, 2022 to July 25, 2022.

With the theme of "Digital Empowerment and Mapping the Future", the conference will provide a platform for front-line workers engaged in graphics research, teaching and application across the country, as well as front-line researchers engaged in digital design, digital manufacturing, digital services and manufacturing informatization.

2022-02-13

《Fine Management System of Subway Construction Equipment and Materials Based on BIM Platform》 has been published in Construction Technology.

In order to solve the problems of long procurement and supply time limit, high price and slow response speed in Guangzhou subway project, a fine management system of subway construction equipment and materials based on Building Information Modeling (BIM) is developed in this paper. In the process of subway project construction, there are many kinds of materials due to the cooperative construction of civil engineering, mechanical and electrical engineering and other fields. The traditional manual input method is not only inefficient but also prone to error. Therefore, it is easy to cause the delay of construction period or the quantity of materials does not meet the production requirements. The project optimizes and analyzes the equipment and materials management process through the independently developed BIM-based management platform. The actual project verification shows that the process greatly reduces the waste of resources caused by human factors, largely avoids the repeated redundant steps in the traditional management process and shorts the project cycle.