A Research On The Dynamics Simulation About The Working Mechanism Of Aerial Work Platform

Possessing the merits of good solidness, high security and excellent reliability, the aerial work platform is a kind of special vehicle which can lift operators and working equipment up to the specified altitude. Based on virtual prototyping technology, dynamics models are established in this paper against the background of the work unit of Model GTZZ21 telescopic arm aerial work platform. Besides, on the foundation of the modal synthesis method, a rigid-flexible coupling model of the aerial work platform is created by the method of finite element and multi-body dynamics joint simulation.The paper shows the research work and fruit as follow:1. Characteristics for the working body, the use of three-dimensional modeling software Pro/E CAD model to establish a working body, and appropriate to simplify the model.2. By Pro/E software and dynamic analysis software ADAMS joint, the establishment of a high-altitude platform for rigid body dynamic model, and its simulation analysis of a certain working conditions. Through the dynamic model simulation results and theoretical analysis and comparison of data to verify the correctness and feasibility of the model.3. Designing a feasible experiment plan to test and gather the displacement data of Amplitude Cylinder and the strain data of the measurement point on the working arm of aerial work platform in the typical condition, and afterwards, analyzing and handling those prepare for the simulation and analysis.4. The finite element analysis software ANSYS will work arm modal neutral file generated in the modal synthesis method, based on the established system of flexible coupling models. The system dynamics simulation, the strain measuring point corresponding to the data, compared with the experimental results verify the feasibility and effectiveness of the simulation model.In summary, the work provides design foundation and theory gist for further researches about high-low pressure rocket launch system, and the research methods provides reference for correlative research.