Deformation research of heliostat in wind load by fluid-structure interaction method

Distinguished from conventional wind load analyses based upon static wind pressure coefficient, the formulation mixing RANS and Newmark was adopted, the data mapping of flow field and structure interface was established to realize considering the actual wind load heliostat fluid-structure interaction analysis, which was used to analyze the deformation of 4 m×4 m heliostat bearing wind. The results show that the relationship between structure deformation of heliostat and elevation angle is complex. When the elevation angle is 60 degree, the structure of heliostat shows a local maximum response because of the turbulence. Then the confidence in optimizing the structure of heliostat and improving the protection strategy can be established.