摘要
The construction of seaside facilities is a hot topic in the field of ocean engineering.In this paper,a new type of floating breakwater is designed by 3D-CAD geometric modeling.Based on the vibration theory and finite element tech-nology,the floating breakwater model is optimized,and the modal analysis of the structure with the bracket as main body and blades as functional attachments is carried out.Natural frequencies and mode shapes of the blades are fi rst calculated,and the effects of the natural frequencies in both dry and wet conditions are taken into account.Modal analysis and harmonic response analysis of the bracket with different lengths by removing the blades are also carried out,and the different var-iations of the natural frequencies between several bracket units are compared.The responses of the key position of the bracket under different loads and different bracket lengths are analyzed.The influence of liquid on the natural frequency of the blades and the influence of the length of the bracket on the natural fre-quency of the bracket are discussed in the fluid-solid coupling state.Research in this paper provides a data basis for the safety assessment of the breakwater construction.
基金
This research is funded by the grants from the National Natural Science Foundation of China(Project Nos.11772158 and 11502113)
the Fundamental Research Funds for Central Universities(Project No.30917011103).
