Abstract: The unreasonable design of traction beam of large railway maintenance machinery of CRCCE isstudied. Multiple calculations and analyses were done by ANSYS software. Finally , three options areprovided for the reinforcement of existing frames, a reasonable structural design for the new frames is pro-vided, which ensure that the test frame can pass the static strength testof the frame.

Key words: ANSYS software, large railway maintenance machinery, frame, traction beam, optimized design