Modern and innovative de-icing sprinkler-flusher airport machine are now equipped with special arm system. The vehicle arms are manufactured for removal of ice or frost from the surfaces of the airports runways and areas by pouring designated for that chemicals substances.

The paper presents a study of the performance of airport deicing vehicle's arms, establishes numerical simulation model of the arm system by three-dimensional software and finite element analysis software. Based on the numerical modelling and analysis, the work focuses on study of the strength and stiffness of airport deicing vehicle's arm and researched the distribution of stress and deformation under the most dangerous condition. The results show that designed double-arm system can be optimized and manufactured from different, light materials and shows dangerous stress concentration areas of the arm structure. It has important guiding significance to the optimization and manufacturing production of the arm structure.