Effect of wind-driven vibration on the deformation of heliostat mirrors at different tilt angles

Abstract:
The heliostat installed in high altitude open area is subjected to strong wind load, which not only affects its power generation efficiency, but also poses a great challenge to the stability of the heliostat structure. This paper selects the heliostat at different inclination angles as the research object, firstly establishes the heliostat assembly model with the help of SolidWorks, then carries out ANSYS fluid-structure coupling analysis and modal analysis on the heliostat model at different inclination angles, and finally investigates the change of mode shape at different inclination angles to find out the unfavorable working conditions and characteristic locations of the heliostat. This research provides a scientific basis for the safe and stable operation of heliostats and the selection of the installation position of the vibration absorption device.