Simulation Research On Electro-hydraulic Proportional Level System Of Aerial Work Platform

Working platform level technique is one of the key techniques in the aerial work platform which needs more accurate in its performance as the accretion of working height. Taking Beijing heavy industry Co. Ltd GTBZ series thirty- meter aerial work platform as background, the electro-hydraulic proportional level system simulation research is achieved and a method of building whole model is brought forward which combines with multi-software to build mechanism, hydraulic and control model. According to mathematics model analysis and comparison with test data, this method is feasible and reasonable. By changing parameters of simulation model, main factors of influence working platform obliquity are gained which provide method and theory reference for production design. In this paper, the following contents are included:(1) Various kinds of level mechanism and their hydraulic systems are researched and electro-hydraulic proportional level system matching calculation is achieved and components are selected of thirty -meter aerial work platform.(2) Electro-hydraulic proportional level system simulation model is built according to transfer function based on electro-hydraulic proportional theory. System stability is ensured by frequency analysis. And various factors of influence system dynamic characteristic quality are discussed.(3) Electro-hydraulic proportional level system simulation research. Electro-hydraulic close loop control system is built combing MSC.ADAMS with Matlab/Simulink software which makes electro-hydraulic proportional level system dynamic simulation come true.(4) By simulation model, main factors of influence working platform obliquity are gained which have some valuable advice for design. Meanwhile, the simulation result and double cylinders in series level data is compared and analyzed.(5) By researching on level system test and comparing data with simulation result, the simulation model is reasonable and making software to build simulation model is feasible, which provides scientific way for develop much more height of aerial work platform.