Abstract: GFRP tanks are being widely used due to their own advantages. Among them, the surface of the lining of the FRP tank is polished, and many enterprises in China still stay in the stage of artificial grinding. In order to avoid the drawbacks of manual grinding, this paper designs a set of GFRP lining grinding system and introduces it from the mechanical structure and control structure. In order to ensure the rationality of the design and avoid excessive deformation of the grinding system during the working process, the finite element software workbench is used to carry out the static analysis of the grinding frame, the resonance, fatigue and other phenomena that may occur during the grinding process, the hazard caused by forced vibration, modal analysis of the main components of the grinding system to verify the design implementability. Since the grinding speed, working pressure and other parameters have a significant influence on the grinding amount during the grinding process, the surface material removal amount analysis based on the Preston equation provides theoretical support for the parameter setting of the grinding process to achieve high efficiency and reliability for the system.

Key words: glass fiber reinforced plastic lining, grindingsystem, dynamic analysis, preston equation