抄録
In this paper, focus on the new products development of 88 meter aerial platform fire engine, a virtual prototype model of aerial platform fire engine is established based on the multi-body dynamic software RecurDyn. The luffing mechanism, telescope mechanism, rotation mechanism and working platform leveling mechanism of the aerial platform fire engine system are simulated and analyzed using multi-body dynamic method. The operating radius and the trajectories of the key points of the aerial platform fire engine is analyzed. Load-bearing characteristics of each mechanism hinges are checked, and the mechanism-control coupling dynamics simulation model of the working platform leveler with the PID control is established, which provides important design foundation for the design of each mechanism' s drive device--hydraulic cylinder. The research results provide important design basis and scientific evaluation index for the design of new aerial platform fire engine.
