GUO Xiao-gang, LIU Ren-huai, ZENG Na. THE MODIFICATION ON SPACE CONFIGURATION OF FLEXIBLE PIPE BY THE SUB-STRUCTURE DISPLACEMENT ITERATION METHOD[J]. Engineering Mechanics, 2008, 25(10): 25-032.
Citation:
GUO Xiao-gang, LIU Ren-huai, ZENG Na. THE MODIFICATION ON SPACE CONFIGURATION OF FLEXIBLE PIPE BY THE SUB-STRUCTURE DISPLACEMENT ITERATION METHOD[J]. Engineering Mechanics, 2008, 25(10): 25-032.
GUO Xiao-gang, LIU Ren-huai, ZENG Na. THE MODIFICATION ON SPACE CONFIGURATION OF FLEXIBLE PIPE BY THE SUB-STRUCTURE DISPLACEMENT ITERATION METHOD[J]. Engineering Mechanics, 2008, 25(10): 25-032.
Citation:
GUO Xiao-gang, LIU Ren-huai, ZENG Na. THE MODIFICATION ON SPACE CONFIGURATION OF FLEXIBLE PIPE BY THE SUB-STRUCTURE DISPLACEMENT ITERATION METHOD[J]. Engineering Mechanics, 2008, 25(10): 25-032.
(1. Institute of Applied Mechanics, Key Lab of Disaster Forecast and Control in Engineering, Jinan University, Guangzhou 510632, China; 2. Institute of Civil Engineering and Mechanics, Xiangtan University, Xiangtan 411105, China; 3. Changsha Mining Research Institute, Changsha 410011, China)
This paper aims to solve four-point constraint problems. To do that, this paper adopts nonlinear finite element method and Newton-Raphson incremental load-step method, and employs mobile boundary constraint conditions corresponding to the motion of mine-collecting machine. The space configuration of flexible pipes has firstly been computed under real boundary two-point constraints. Then it is modified by the displacement iteration method of sub-structure so that it matches the measured result under four-point constrains. Therefore the on-line dynamic measuring technique of the space orientation of flexible pipes for deep sea mining can be combined with the finite element computation.
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