Emergency Braking Analysis: Frame Deformation and Stress Distribution

The boundary conditions for this case are summarized in Table 4. To simulate emergency braking of the vehicle, a deceleration of 25m/sﾲ is applied concurrently under these conditions. The resulting deformation and stress distribution of the frame are illustrated in Fig. 6 and Fig. 7.

The calculation results indicate that the maximum deformation of the frame measures 1.31mm, with the most significant deformation occurring on the longitudinal beam between the 3rd and 4th crossbeams. Additionally, the maximum stress experienced by the frame is 103MPa, which is lower than the permissible stress of the material (345MPa). This maximum stress location is found in the vicinity of the 2nd crossbeam. Moreover, considering the overall dimensions of the frame, the deformation falls within a safe range, implying that the stiffness requirement is met.