海洋信息技术与应用

针对海底微型钻机在复杂海底地形钻取作业时对高机动性的需求，本研究开展了结构紧凑性优化设计。以钻杆置换机构为对象，以关键结构尺寸为优化变量，在满足材料屈服强度的约束条件下，基于多目标遗传算法利用MATLAB平台进行Pareto前沿求解与多目标优化分析。在此基础上构建了该置换机构的三维模型，并采用静力学有限元方法对其在深海高压工况下的力学性能与结构可靠性进行了验证。研究结果实现了结构紧凑性与承载可靠性的协同优化，为深海钻探装备取芯作业的结构设计提供了理论支持与工程借鉴。

To meet the need for high mobility of seabed micro-drills during operations in complex seabed terrain, this study focuses on the optimization design for structural compactness. Targeting the drill pipe replacement mechanism and using key structural dimensions as optimization variables, and under the constraint of satisfying the material yield strength, a multi-objective genetic algorithm was employed on the MATLAB platform to obtain the Pareto front solution and perform multi-objective optimization analysis. On this basis, a three-dimensional model of the replacement mechanism was developed, and its mechanical performance and structural reliability under deep-sea high-pressure working conditions were validated using static finite element analysis. The results demonstrate the synergistic optimization between structural compactness and load-bearing reliability, providing theoretical support and engineering insights for the structural design of deep-sea drilling equipment in coring operations.