高速布放的微型海光缆下沉状态研究

Research on sinkage of submarine fiber optic micro-cable deployed at high-speed

研究了高速布放的微型海光缆(SFOMC)的下沉状态,分析了洋流、微缆外径、微缆单位长水中重力以及布放速度对下沉状态的影响。计算机仿真结果表明,上升流是影响SFOMC下沉状态的决定性因素,在选择路由时,一定要避开有上升流的海域,同时要加快下沉速度,还应尽量选用外径较小的SFOMC;而下沉速度受SFOMC的单位长水中重力的影响不大,没有必要设计制造大重力的单位长水中重力的SFOMC,且下沉速度与布放平台的航行速度无关。

The sinkage of submarine fiber optical micro-cable（SFOMC） deployed at high-speed were studied, and the influence of current, outer diameter, gravity in water of unitary length and navigating velocity on SFOMC was studied. Through computer simulation, several conclusions were drawn： Upwelling is a key factor which affects the sinkage of SFOMC, therefore, SFOMC must be kept away from the upwelling region when they are deployed; The SFOMC with small outer diameter should be selected to accelerate the sinkage; Sinking velocity of SFOMC is not effected greatly by gravity in water of unitary length, so there is no need to fabricate SFOMC of bigger gravity in water of unitary length, and sinking velocity of SFOMC is not related to the navigating velocity of deploying the platform.