A virtual rigid-flex coupled prototyping of a new type shearer cutting unit for thin coal seam from a company is established in the co-simulation platform based on PRO/E、MATLAB、ANSYS、ADAMS and NSOFT

the stress and strain condition of the key parts of the cutting unit are obtained by dynamic simulation

and Found that the local of shell and planetary carrier exist a larger dynamic stress

the optimized shell and planetary carrier stress are more evenly distributed

significantly improved mechanical properties;fatigue life analysis of the output shaft are launched afterwards based on NSOFT

the weak link prone to fatigue damage was found.The results of the analysis provides a quantitative basis for the performance improvements and structural optimization

and the design cycle can be shortened.