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深海热液集成化在线探测系统用于深海多金属硫化物资源矿区的拖曳式走航探测,其拖体设计为鼠笼式结构,由钢管折弯焊接而成。基于Solidworks的COSMOSWORKS软件,对拖体受力薄弱处侧梁进行了有限元分析。结果表明,侧梁中部外侧受2t作用力,最大应力和最大位移大小分别为340 MPa和0.5mm,满足强度和刚度要求,最低安全系数为1.73,侧梁结构可进一步优化。根据承重试验和现场拖曳作业,拖体结构垂向和轴向能承受2t的静载和海底峭壁岩石的巨大冲击力。
Deep sea hydrothermal integrated on-line detection system for deep-sea polymetallic sulphide resources mining towed navigation, the tow body design for the squirrel-cage structure, made of steel pipe bending. Based on Solidworks’ COSMOSWORKS software, finite element analysis was performed on the side beam with weak force on the tow body. The results show that the outer side of the middle side of the side beam is subjected to 2t force, the maximum stress and the maximum displacement are 340 MPa and 0.5mm respectively, which meet the requirements of strength and stiffness with the minimum safety factor of 1.73. The side beam structure can be further optimized. According to the load-bearing test and on-site towing operations, the vertical and axial drag structures can withstand the static load of 2t and the huge impact of rock on the seabed cliffs.