Abstract: To address the issue of excessive weight in the mining wind measuring mechanical arm, which reduces transportation and installation efficiency, a lightweight design using carbon fiber reinforced polymer (CFRP) was implemented. Finite element simulation methods were employed for optimization and comparative analysis. The nested three-stage telescopic boom was selected as the optimization target, and structural optimization was carried out, followed by an analysis of the static mechanical properties of different materials after optimization. Through thickness optimization and ply angle optimization, the optimal design solution was determined. Finally, failure analysis and stability checks were conducted to ensure that the optimal solution meets safety requirements. Simulation results show that the total mass of the telescopic boom with CFRP optimization is reduced from 52.817 kg to 33.563 kg, achieving a weight reduction of 36.45%. Meanwhile, the total deformation decreases from 28.855 mm to 15.204 mm, with a 47.31% increase in stiffness.

Key words: mechanical arm, CFRP, lightweight design, finite element simulation, ply optimization