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Because of large amounts of heat generation, spur gear transmission of heavy load and high speed can not only have a serious effect on the temperature field of the whole transmission system, but also lead to thermal deformation, which can badly affect the working reliability and the lifetime. With the complex application of gear meshing, friction and thermal conduction, heat flux and heat transfer...
The hydrodynamic problem of a two-dimensional model of seafloor mining tool entering still water vertically in constant speed is analyzed. Finite element analysis is undertaken using the CFD software Fluent. The governing equations are Reynolds time-averaged equations and the complicated free water surface is tracked by volume of fluid method (VOF). Time histories of pressure and impact force during...
For the purpose of simulation of the deployment and retrieval of deep sea mining system, two methods for assessing the added mass of components of deep sea mining system are mainly proposed in this work. The first method is referred to as the Hess-Smith method which is based on surface panel method and potential theory, the surface of the moving object is discretized to lots of panels to approximate...
In the present paper, a typical seafloor mining tool (SMT) is demonstrated. With considering the influence of ocean currents and ocean wave, the force analysis is carried out to SMT. There are five forces that effect SMT, they are as following: gravity, buoyancy, hydraulic drag force, tension of the riser and added mass forces. The results of force analysis strongly suggest that the added mass forces...
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