4500 t油船锚机绞车基座结构强度分析及拓扑优化

针对建立的4 500 t油船船首锚机、船尾绞车基座模型，根据中国船级社相关规范，采用Ansys软件中的静力分析模块对锚机绞车结构强度进行校核，并对结果展开分析。将拓扑优化思想引入锚机绞车基座结构设计过程中，运用Ansys软件中的拓扑优化模块对锚机绞车基座进行结构轻量化拓扑优化设计。结果表明，锚链绞车基座结构在甲板上浪载荷、锚链45%破断载荷及掣链器80%破断载荷的工况条件下均符合设计要求。最大应力均处于基座与船体接触部位，在设计安装时需要特别注意。在保证结构刚度与强度的情况下，经拓扑优化的基座结构符合设计要求，其质量减少约20%。

Structural Strength Analysis and Topological Optimization of Windlass Base and Winch Base in 4 500 t Oil Tanker

In view of the established models of bow position windlass base and stern position winch base in 4 500 t oil tanker, according to the relevant specifications of China Classification Society, the structural strength of windlass and winch is checked with the static analysis module of Ansys software, and the results are analyzed. The topological optimization thinking is introduced into the structural design process of windlass base and winch base, and the topological optimization design for structural lightweight of windlass base and winch base with the topological optimization module of Ansys software. The results show that the base structures of windlass and winch meet the design requirements under the working conditions of green water load, 45% breaking load of chain, and 80% breaking load of chain stopper. The maximum stress is in the contact position of base and hull, and special attention is needed in the design and installation. Under the condition of ensuring the structural stiffness and strength, the base structures after topological optimization meet the design requirements, and their mass is reduced by about 20%.