... and the high-fidelity simulation model, this paper obtains the numerical computation and the actual measured stress data, and combines the stress amplitude response operator ( RAO ) corresponding to the measurement points with the transition amplitude response operator ( T_RAO) between the measurement points...

... interface offshore platform software operation computer simulation platform configuration monitoring drilling platform platform ocean simulation platform information operator marine simulation platform remote monitoring system control database ABSTRACT Due...

... of autonomous technology in shipping can face numerous challenges from the technology and regulatory perspectives. Adopting onshore operation centers (OOCs) for monitoring and control support is envisaged to alleviate these challenges and assist in obtaining broader acceptance of autonomous navigation from...

... asia government electrical industrial apparatus litter yamamoto artificial intelligence mobility vehicle underwater structure kenbot japan government sub-sea system asv rov joint mobility vehicle island underwater vehicle operator vehicle remotely operated vehicle ocean...

.... Koshizuka and Oka (1996) derived the original Laplacian operator from a time-dependent diffusion problem. Later, several Laplacian operators were derived by calculating the divergence of the original gradient operator, such as Zhang et al. (2006), Khayyer and Gotoh (2010) and Xu and Jin (2016...

...+subsea mode. This development mode is more favorable due to CNOOC had long experience of FPSO operations as well as subsea production systems (Li and Ji,2016; Li and He,2016; Mao,2014; Liu and Mao,2015). Both are technically proven and economically appealing. However, during the design and project...

... ABSTRACT For deep-water floating structures, mooring system is essential for the safe operation of the facility. Historical accidents show that mooring failures can put serious threats to the environments, asset, and even human lives. First, detailed numerical analysis is performed...

... model for offshore gas hydrate production experiments and map it to the DBN model. The results show that the success rate of preventing the secondary formation of gas hydrate in the test of offshore gas hydrate production cannot reach 100% due to the influence of artificial operation and equipment...

... ABSTRACT A prototypal robotic platform that consists of a small autonomous surface vehicle (ASV) and of a micro-ROV, connected by an umbilical, is described. 4G/internet connection makes it possible to operate the platform from remote location. The operator can concentrate on guiding the micro...

... consumption ocean current probability auv optimal solution operator dubin curve environment model Large Scale Under-actuated AUV Path Planning Based on Evolutionary Algorithm Zhen Su, Ben Li, Linjian Jiao, Hongming Wu, Guohua Xu, Underwater Technology Laboratory, School of Naval Architecture...

..., a small remotely operated vehicle (ROV) has been developed to remove sea urchins. We study the ROV system and the status of sea urchin removal. The experimental area is Nojima island Shizugawa Bay, in Miyagi Prefecture (Tahara, 2019). ROV SYSTEM FOR SEA URCHIN COLLECTION The Vega is a medium-sized ROV...

... of key personnel when executing floatover operations. The VR simulations realistically and accurately replicate the floatover operations against set scenarios in a VR environment, thus identifying any deficiencies in key installation personnel, communication skill, execution plan, operation procedures...

... to insufficient exploration of the solution space. This was rectified by improving operators to ensure the algorithm could fully search the allowed space. A memetic algorithm was developed for member sizing and, in conjunction with the genetic algorithm, led to weight reductions of up to 8 percent. The results...

... that encapsulate objects move without deformation and regeneration (Ma et al. , 2018). simulation boundary condition equation operator rectangular tank artificial intelligence numerical simulation interaction experiment numerically accuracy tank experimentally free surface profile pressure...

... system offers attractive both technical and commercial advantages over the current offshore field development concepts. barrier management hazard well system escalation huang online risk model operation ultra-deep water external impact barrier function 3 subsea system prevent escalation...

... in the sea and for use in dams.The results of experiments show that the developed Remotely Operated Underwater Vehicles (Hereafter called ROV) are amply practical for the desired use. Its features are high mobility design, which is small scale, light weight, which is portable, the underwater observation...

... ABSTRACT The FLBT(Floating LNG Bunkering Terminal) is a new concept offshore plant system, the operation of which few people are thought to be experienced with. FLBT receives LNG from 170K CBM (170,000 m 3 ) class LNG carrier and can unload LNG to two bunkering shuttles simultaneously. High...

... surface variables alone. This is made possible by introducing the Dirichlet Neumann operator and associated Hilbert transform which are described via a Taylor series expansion about the still water level. Each Taylor term is a sum of concatenations of Fourier multipliers with powers of the surface...

... floatover operation to be operated safely in different DP control modes, thus executing its intended activities as rapidly as possible co-incident with safe practice. It can be anticipated that expensive day-rate DP vessels will become more and more competitive and cost-effective in the floatover market...

... ABSTRACT Saturation diving has been widely used in various underwater operations, because of its danger, operators need to maintain long-term training to improve their familiarity with the operation process. To meet this requirement, a set of saturated diving simulation training system...