The Tension Allocation of Actived Position Mooring Based on Dimensionality Reduction Optimization

摘要

The multi-point position mooring system requires the restoring force to be allocated among multiple mooring line, and the stress of all the mooring line should be kept below the broken tension. To improve reliability and economical efficiency of offshore drilling rigs assigned in rough sea conditions, a named actived position mooring(APM) scheme are proposed in this paper. The Genetic algorithm based on dimensionality reduction algorithm is used to keep the platform station within predetermined position as well as ensure the mooring lines' safety. Adaptive crossover and mutation operators are employed to optimize the convergence speed of algorithm. The comparison of simulation results show that the proposed method can improve the real-time performance and energy-efficiency of positioning system.