... Abstract According to the equation of continuity and the equation of motion, a formula of water-hammer pressure in lifting pipe is derived. The paper analyzes the water-hammer pressure in the lifting pump's outlet under different operating conditions. The simulated calculation results show...

...Numerical Simulation of Mud Erosion by Water Flow in Porous Media Using Lattice Boltzmann Method Takero Yoshida, Toru Sato, Hiroyuki Oyama Department of Ocean Technology, Policy, and Environment, The University of Tokyo Kashiwa Chiba, Japan ABSTRACT In order to comprehend the driving force of mud...

... vehicle, robot, and etc. This simulation based design (SBD) technology has contributed to the reduction of production costs by reducing frequency of experiment and production of prototype. The SBD technology is applied in the field of development of deep-sea mining system. As a result, there are a number...

... metals & mining cohesive soft soil property inshore test sinkage soft soil property chang-ho lee soil property hong pilot mining robot vehicle minero simulation shear displacement shear stress artificial intelligence numerical simulation mining robot dynamic behavior...

... Simulation of a Laboratory-scale Experiment for Flow Behavior of Supercritical CO2 in Porous Media Y. Sakamoto*, Y. Suzuki A. Tanaka*, N. Tenma*, T. Komai* and T. Yamaguchi** *National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba, Ibaraki, Japan *Graduate School...

... to improve the functions of geological-based performance assessment. We have developed our original risk assessment system for CCS, regarding the geological features of specific storage sites. Some results on numerical simulation of CO2 migration and the estimation of the leakage of CO2 in pathways...

... displacement. In an effort to evaluate the dynamic responses of an articulated tracked vehicle crawling on undulating and inclined ground, a series of dynamic simulations were conducted for an articulated tracked vehicle model with respect to the initial velocity, gradient of inclined plane, soil property...

... ABSTRACT: This paper provides an overview of the development of an interactive simulation system and Graphical User Interface (GUI) for an underwater robotic vehicle. Computer simulations and graphical interfaces are effective ways for studying the behavior of a system well before...

... and Loden, 1980) developed a third-generation commercial and totally integrated system (TIS); the control of the ship-pipe-buffer-link-miner and supporting technology, as well as the design and control operation of a system (similar to Fig. 3) with the 300,000-ton ship in a 5,846-m-deep ocean, was simulated...

... ABSTRACT: This paper explains the modelling and simulation of manipulator with six degrees of freedom for under water simulator applications. Dynamic simulation has been carried out to obtain the possible trajectories of all degrees of freedom. The legs of the motion platform are made up...

... and exploiting efficiency of the whole deepseabed mining system are decided by path planning technology. In this paper, a path planning algorithm based on a fast grid search and rolling optimization strategy is presented. The path planning simulation platform for mining vehicle is developed. Then the simulation...

... Simulation of Motion Performance for a Cobalt Crust Miner on Seamounts Li Li, Shaojun Liu College of Mechanical and Electronic Engineering, Central South University Changsha, Hunan, China Changbin Wu China Ocean Mineral Resources R&D Association Beijing, China Yuqing Gao Changsha Institute...

... ABSTRACT: The simulations and numerical analyses of triaxial compression tests on soil samples obtained from seabed ground in deep sea were performed by elasto-viscoplastic constitutive equation. From the results it is proved that simulation can express very well the experimental results...

... to the equilibrium point due to hydrate dissociation, and that the dissociation ceases until heat is transferred from the surrounding cell walls. We simulated this process by using a numerical model with tentative surface areas. The surface area is, then, estimated by comparing the amounts of dissociated gas...

... are convenient to simulate the various 3-D motions of integrated mining system. Some essential characteristic and transient behaviors of pipe system are investigated and evaluated by simulation, including: Pipe system's launch and retrieval behaviors; The configuration of pipe system in deep-ocean, putting...

... Simulation for the Motion of Polymetallic Nodules in Hydraulic Hoist for Deep Sea Mining Pengcheng Li, Long Jiang, Long, Tian, Wenliang Han Department of Hydraulic and Hydropower Engineering, Tsinghua University Beijing, China ABSTRACT: The two-phase flow composed of polymetallic nodules...

... pantographic leg mechanism is adopted. Design of leg mechanism and driven theory is also accomplished, motion simulation is carried out. This kind of walking robot can be used as agile omni directional walking mechanisms. The research may supply some helpful reference to the choice of a transporting machine...

... dynamics computational fluid dynamic fraction simulation equation particle Design of Hydrocyclone for Solid Separation Yong-Chan Park, Chi-Ho Yoon, Dong-Kil Lee and Seok-Ki Kwon Korea Institute of Geoscience and Mineral Resources Daejeon, Korea ABSTRACT Manganese nodules are very fragile and easy...

...-dimensional two-phase analysis has been conducted by using FLUENT based on Eulerian multi-phase method. We have studied the effect of inlet shape on two-phase flow by comparing the values of pressure and solid fraction in a transient state. The numerical simulation shows that the shape has a large effect...

... in the software ADAMS (Automatic Dynamic Analysis of Mechanical System) and ATV (ADAMS Tracked Vehicle Toolkit). The virtual pilot-miner moving on straight and swerving at different speeds, weights and positions of centers of mass, and different resistances of the flexible pipe on different terrains are simulated...