Research on Wind Resistance Load Performance of Safety Sign Based on Computer Numerical Simulation

In this study, FLUENT is used to establish a three-dimensional model of fiber-reinforced composite signboard fixed in the wind field. The Fluid Flow (Fluent) and the Static Structure modules in ANSYS Workbench are used to simulate the fluid-solid coupling of signboard. The orthogonal experimental design method is used to optimize the performance of the 900 mm x 600 mm signboard by means of three factors and three levels including hole diameter, hole spacing and plate thickness. The results show that the best hole diameter is 8 mm, hole spacing is 16 mm and plate thickness is 6 mm. The deformation of signboard is 15.54 mm, the stress is 9.31 × 103 MPa and the strain is 0.0012 under the condition of extreme wind speed of grade 12, which meets the use requirements. This study provides a method for the optimal design of composite signboard under extreme wind speed, and provides theoretical guidance for the use of the signboards in offshore oil platform.