Study on fault vibration characteristics of shield cutters based on FEM-MBD.

ABSTRACT: The geological conditions in coal mine tunnel construction are complex, the vibration impact of shield machine due to rock breaking easily leads to cutters failure, thus causing safety problems and causing economic losses. In order to explore the fault vibration characteristics of shield cutters in rock breaking process, numerical simulation of rock breaking of single-blade fault cutters is carried out based on finite element-multi-body dynamics coupling model. The accuracy and reliability of simulation results are verified by comprehensive application of dynamic energy conservation law and hourglass energy control theory, and the fault vibration characteristics of cutter center, cutter body outer side and rock surface outer side are analyzed, and the influence of penetration degree and bl

SUBMITTER: Chen J 

PROVIDER: S-EPMC12572193 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature