Operating Arm Of18m Aerial Vehicles Structure Design And Optimization Of Simulation Analysis

The aerial vehicle is a kind of construction machinery and equipment whichused to transport staff and equipment to reach the specified height. At currently, theuse field of aerial vehicles has been expanding. Under this condition, in order toensure the personal safety of stuff in the actual operation, the operating armstrength properties has become the content of the aerial vehicles in this researchfield.In this paper, we can use aerial working platform which can reach18meters asa research object. First, completed the overall layout, matched the hydraulic systemand selected the leveling mechanism. After complete these steps, we can finiteelement model of the operating arm structure to the analysis of the structure of thestatic strength and static stiffness according maximum working radius andmaximum height by ANSYS, get the stress distribution, stress dangerous position,and strain distribution of the operating arm under these two different condition. Thecalculation results show that the operating arm satisfies the requirements of thestructure’s static strength and stiffness. Then, based on the finite dement analysis,the operating arm’s weight to the lightest is the optimization objective, and theplate thickness is the design variables. Under the premise of ensuring the strengthand stiffness to meet the demands, to optimize the structure design of the operatingarm, the optimized operating arm weight to reduced137.8kg, achieved the goal ofmaterials savings and lower costs. Then we establish a dynamic model of theoperating arm system, and simulate the displacement, velocity and acceleration ofthe working platform, as well as the driving force of the three hydraulic cylinders.To further ensure the strength and stiffness of the operating arm, we can findout the static analysis of the location of maximum stress during the maximumoperating altitude sports. At last, we use maximum force to the finite elementanalysis and the analysis results show that the operating arms are still suitable forthe allowable conditions.