Tsinghua University

China National Offshore Oil Corporation

Cotec, Inc

Offshore Oil Engineering Co., Ltd.

Facheng Wang

Ming Wang

Yang Li

Jin Wang

Zhigang Li

Qing Yu

Yong Luo

Ke Tang

Jiannan Li

Weiwei Liu

Shuang Gao

Xiaohuan Zhu

Xiangwei Meng

Huayang Zhao

Yigong Zhang

A carbon steel-concrete/cement mortar-stainless steel composite submarine pipeline belongs to the technical field of marine structure engineering. The composite submarine pipeline is formed by connecting several composite sub-pipelines arranged sequentially along an axial direction of the pipeline, each composite sub-pipeline has an identical structure and includes an outer carbon steel pipe and an inner stainless steel pipe each having a circular cross section and concentrically placed, concrete or cement mortar is filled between the outer carbon steel pipe and the inner stainless steel pipe to form a sandwiched structure with a circular ring-shaped cross section. Between two adjacent composite sub-pipelines, the welding line of the inner stainless steel pipelines is covered by the concrete/cement mortar, and the fatigue performance of the inner stainless steel pipes at the welding line can be improved effectively.

Carbon steel-concrete/cement mortar-stainless steel composite submarine pipeline

A real-time analysis system for operation of working ship based on ship attitude measurement includes: a central processing unit (); a position monitoring unit () for detecting and providing position-attitude information and heading information of the working ship at a predetermined time, and the position-attitude information and heading information of the working ship at a predetermined time is provided to the central processing unit (); a manual data input unit () connected to the central processing unit () and capable of providing the pipeline model data to the central processing unit () in a manual input method; and a display unit () connected to the central processing unit () which displays the dynamic response data of the pipeline according to the processed data provided by the central processing unit ().

Real-time analysis system for operation of working ship based on ship attitude measurement

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Beijing, China

Facheng Wang