摘要
研究深海无人遥控潜水器(ROV)耐压电子舱结构设计中涉及的力学分析技术。利用有限元数值分析方法校核耐压电子舱在深水条件下的强度、刚度与稳定性。根据深海耐压电子舱受力特点,优化其结构形式和尺寸,获得最优结构拓扑构型。对于耐压电子舱上下壳体接合面间接触问题,将非线性接触分析和简化分析法的计算结果进行比较。探讨加工误差与初始缺陷对耐压电子舱力学性能的影响。计算结果表明,耐压电子舱结构优选设计方案满足力学性能和重量要求,并且对加工误差与初始缺陷的影响不十分敏感。
The mechanical analysis technologies involved in the design of pressured electric cabin for deepwater ROV are investigated.Finite element method is employed to verify the strength,stiffness and stability of pressured electric cabin.According to the surrounding load conditions,the topology and the sizes of the cabin are optimized and the optimal topology configuration is obtained.To investigate the contact mechanism of the joint surface between the upper and lower parts of pressured electric cabin,the computation results are compared between nonlinear contact analysis and simplified analysis.In addition,the impact of mismachining tolerance and initial imperfection on the mechanical performance are discussed.Computation results show that the final design scheme satisfies the requirements on the mechanical properties and weight,and that the mechanical properties are insensitive to the mismachining tolerance and the initial imperfection.
出处
《海洋工程》
CSCD
北大核心
2010年第3期9-16,共8页
The Ocean Engineering
基金
国家自然科学基金资助项目(10672100)
