Original scientific paper

https://doi.org/10.17559/TV-20150314135940

Three-dimensional coupled dynamic analysis of deep ocean mining system

Yu Dai ; College of Mechanical and Electrical Engineering, Central South University, Shenzhen Research Institute, Room A511, New Campus, Yuelu District, 410083 Changsha, China
He Liu ; College of Mechanical and Electrical Engineering, Central South University, Room B504, New Campus, Yuelu District, 410083 Changsha, P. R. China
Tao Zhang ; College of Mechanical and Electrical Engineering, Central South University, Room B504, New Campus, Yuelu District, 410083 Changsha, China
Shaojun Liu ; College of Mechanical and Electrical Engineering, Central South University, Shenzhen Research Institute, Room A511, New Campus, Yuelu District, 410083 Changsha, China
Yan Li ; College of Mechanical and Electrical Engineering, Central South University, Shenzhen Research Institute, Room A516, New Campus, Yuelu District, 410083 Changsha, China

Abstract

A new three-dimensional coupled dynamic model of the deep ocean mining system is developed. The seafloor tracked miner is built as a 3D single-body vehicle model with mesh element track-terrain interaction mechanics model, which not only can realize the fast dynamic simulation in contrast to traditional 3D multi-body model, but also can allow the loading of the seafloor sediment special terramechanics model. The mining pipeline is built as a 3D multi-body discrete element model that is divided into rigid elements linked by flexible connectors, also can realize the fast dynamic simulation for such long pipeline. New integrated mining operation modes for the total system are proposed and simulated, which show that during the whole operation processes, the synchronized stable motion of the total system can be kept well. The dynamic simulation analysis in the paper can provide important theoretical basis and technical reference for structure design, performance evaluation and operation control of the practical deep ocean mining system.

Keywords

deep ocean mining system; dynamic simulation; mesh element mechanics model; multi-body discrete element model; 3D coupled dynamic model

Hrčak ID:

163747

URI

https://hrcak.srce.hr/163747

Publication date:

16.8.2016.

Article data in other languages: croatian

Visits: 1.990 *