Co-optimization of pointing accuracy for the pedestal structure of ultra-large-aperture radio telescope

Key Points

• Pointing accuracy significantly improves with increased diameter of the azimuth track, reducing error by 29.4%.
• Compared to traditional designs, a central tower base reduces pointing error due to wind loading by 30.6%, enhancing stability.
• The integration of a parametric finite element model with a multi-objective genetic algorithm facilitates this optimization.
• Engineering guidelines emerge from the collaborative mechanism between the azimuth structure and the central pivot design.