| With the acceleration of national industrialization and modernization,stable energy supply has become an important guarantee for safe development.As a means of experimental analysis for studying reservoir structure theory and sedimentary dynamics theory,sedimentary experiment is a pilot basic research for oil and gas exploration and development.At present,the development of sedimentary simulation experiment is based on the fixed or active terrain experimental platform,which puts forward a high requirement for the terrain shaping ability.The large-scale active terrain tectonic platform is the prerequisite to ensure the stability and accuracy of the experiment.In this paper,a sedimentary simulation experiment platform with active terrain is studied.It has the advantages of strong bearing capacity,large range of attitude adjustment and high accuracy.It can be used as a comprehensive platform for a variety of sedimentary simulation experiments.The research content of this paper includes the following aspectsFirstly,the overall technical scheme of the platform is determined.Through comparative analysis of several common lifting schemes,the attitude adjustment scheme composed of four servo motors,planetary reducer and worm screw elevator in parallel is determined.According to the experimental requirements,complete the design and selection of related equipment,and check the core components.Then the position and azimuth of the movable panel are analyzed with the change of the active input of the lead screw.The forward position solution of the 4-pspp mechanism is obtained through the geometric relationship and motion law of the mechanism,and the pose diagram of the mechanism is drawn with MATLAB software,which verifies the feasibility of the attitude adjustment scheme.Then,the rigid flexible coupling dynamic model of the mechanism is established by using ADAMS and ANSYS APDL.The influence of friction coefficient of displacement compensation support on the motion of the mechanism is analyzed by dynamic simulation,and the velocity and torque curves of the deposition simulation platform are obtained,which verifies the feasibility of the mechanism motion.Finally,according to the torque curve obtained from the dynamic simulation as the boundary condition,the finite element analysis of the deposition simulation platform is carried out by using the finite element software ANSYS Workbench.The static and dynamic response characteristics of the mechanism are analyzed,and then the linear buckling analysis of the compression stability of the lead screw is carried out,which verifies the reliability of the structure. |
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