The Dynamic Simulation Of Leveling Mechanism Of Aerial Work Platform

As aerial work platform is used more and more widespread, its key techniques are more and more in-depth studied. To ensure the level of the platform is one of the key techniques of aerial work platform, which directly impact the safety of staff. In the paper, the aerial work platform's double cylinders series leveling was simulated and optimized by dynamic simulation software ADAMS. Achieve the desired results by providing a new way to optimize the position of hinge joint. Due to the lack of study on the chassis leveling mechanism and the difficulty of determining parameters of the hydraulic system and dynamic characteristics of the work platform. Chassis leveling mechanism was simulated by ADAMS, a valid method and theoretical basis were provided for designing and developing new products.Based on GTBZ series--straight boom self propelled aerial work platform project developed by school of mechanical engineering of Dalian university of technology and Beijing jingcheng heavy industry Co., Ltd. The paper mainly completed following contents:(1) By studying on double cylinders series leveling, a new general method is provided to optimize the location of hinge points in the ADAMS software environment. The accuracy of leveling was improved to a great extent.(2) The virtual prototype of aerial work platform is established by a number of CAD, CAE software. Chassis leveling mechanism is introduced to former rigid connections. Provide a method of building whole model combines with mechanism, hydraulic and control system. And carry out co-simulation with MATLAB.(3) The hydraulic system components' data curve and platform vibration curve of two typical working conditions are analyzed. The results show that with leveling mechanism can effectively reduce the swing range of working platform. It can improve the safety of staff and vehicles' operating adaptability.(4) The accuracy of the simulation result is verified through hydraulic-mechanical servo system stability analyzed and comparison of test data. The results can be used to guide the actual design.