Author(s)

Lingzhi Xu, Jinsheng Lai, Xiaotong Lin, Yue Zhang, Dapeng Zou, Han Sun

Corresponding Author

Han Sun

Abstract

This paper focuses on the structural strength of floating ocean energy multi-energy complementary device. At present, in the development of marine energy, such devices are facing the challenges of complex marine environment, and the structural strength problem is outstanding. Based on the theories of structural mechanics and material mechanics, the structural strength of the device is optimized by means of structural topology, size and shape optimization. At the same time, the structural strength checking model including wind load, wave force and other calculation formulas is established, and the analysis is carried out in combination with the fatigue strength checking process. The results show that the optimization method can effectively improve the stress distribution of the structure and improve the utilization rate of materials. The calculated results of the checking model are consistent with the experimental results, and the stresses in some key parts are close to the allowable stresses. The research provides theoretical and methodological support for structural strength optimization and checking to ensure the safe and stable operation of the floating marine energy multi-energy complementary device.

Keywords

Floating marine energy; Multi-energy complementary device; Structural strength; Optimization; Proofread