A Study Of Finite Element Analysis And Optimization Design For The Ground Of Deformation Simulation Test-bed

This subject aims to develop a test platform for modeling ground settlement and simulateheaving motion of soil structure, i.e. ground settlement and ground fissure, at a certain depthvia platform deformation. In addition, it studies how the geological characteristics impact theupper and surrounding facilities. Adopting modern mechanical product design methods, lotsof work has been done in the entire test platform systems, such as the initial proposal, probing,design, optimal design. After several amendments, we have worked out a large-scalesimulation test-bed for ground settlement and come up with a mechanical structure scheme.The main contents of this paper are as follows.We have identified each component of the platform, which covers panel system, a liftsystem, a control system, a support system and related accessories. Test platform onsite hasbeen evaluated by actual measurement and pieces of amendments have been proposed.We have completed structural design of panel system, a lift system and support system,which is in line with different working conditions. Meanwhile, we have identified the materialof the screw drive mechanism and the turbo-worm drive and verified its static structure,stiffness, self-locking and stability. Furthermore, analysis has been done on up and downmovement of the lift system to ensure the feasibility of this program.Six-point plate and four-point plate have been established on the basis of finite elementmodel, and static analysis has been undertaken within different working conditions. Thismethod has guaranteed the maximum equivalent stress of each component, total deformationand safe zone, which meets the design requirement of each parameter and lays foundation forits further optimization.Six-point plate has been optimized by the utilization of optimal toolbox of ANSYSWorkbench, and thereby a more reasonable model size parameter has been obtained, whichprobably reduces weight of components, cuts down the size, produces a more reasonablestress state and saves material and cost. Finally, we have verified the optimal structure andachieved a reasonable match within test platform systems.