Method and device for impact test on lower abdomen of vehicle crash test dummy

A device for impact test on a lower abdomen of a vehicle crash test dummy, comprising a fixing platform (1), a dummy fixing apparatus (2), an impact hammer (3), a control apparatus (39) connected to the impact hammer (3), and a preset dummy (43), wherein the dummy fixing apparatus (2) is provided with a pressure sensor (7), the pressure sensor (7) is connected to a pelvic tail of the preset dummy (43) and the control apparatus (39) respectively, the impact hammer (3) comprises an arc-shaped hammer head (33) and a displacement sensor (34), and the displacement sensor (34) is connected to the arc-shaped hammer head (33) and the control apparatus (39) respectively;

• the fixing platform (1) is used for fixing the dummy fixing apparatus (2);
• the dummy fixing apparatus (2) is used for fixing the preset dummy (43);
• the impact hammer (3) is used for driving the arc-shaped hammer head (33) to impact a lower abdomen of the preset dummy (43);
• the control apparatus is used for controlling the impact hammer (3) to impact the lower abdomen of the preset dummy;
• the pressure sensor (7) is used for collecting a pressure borne by the lower abdomen of the preset dummy (43) when the arc-shaped hammer head (33) impacts the lower abdomen of the preset dummy (43);
• the displacement sensor (34) is used for collecting displacements generated by the lower abdomen of the preset dummy (43) and the arc-shaped hammer head (33) when the arc-shaped hammer head (33) impacts the lower abdomen of the preset dummy (43);
• the control apparatus (39) is further used for determining, based on the displacements and the pressure, whether the preset dummy satisfies a biological simulation standard;
• the dummy fixing apparatus (2) further comprises a trunk support plate (12), a chest connecting portion (40), a back support portion (41), and a pelvic tail connecting portion (42);
• the chest connecting portion (40) comprises a second adjusting bolt (16), a cover plate (17), a chest connecting plate (18), a third compression bolt (19), and an adjusting hole (20);
• the back support portion (41) comprises a back support plate (21) and a first adjusting bolt (8);
• the pelvic tail connecting portion (42) comprises a third adjusting bolt (22), a fourth compression bolt (23), and a pelvic tail connecting plate (24);
• the chest connecting portion (40) is connected to the trunk support plate (12), a limit slider (44) is arranged inside the cover plate (17), and the second adjusting bolt (16) cooperates with the limit slider (44) so as to adjust an angle of the chest connecting plate (18), so that a chest angle of the preset dummy (43) is adjusted;
• the chest connecting plate (18) is used for supporting a chest of the preset dummy (43), the third compression bolt (19) is used for fixing and connecting the chest of the preset dummy (43), and the adjusting hole (20) is used for adjusting a position of the third compression bolt (19) according to different percentiles of the preset dummy (43);
• the back support portion is connected to the trunk support plate (12), the first adjusting bolt (8) is used for adjusting an angle of the back support plate (21) so as to match a trunk angle of the preset dummy (43), and the back support plate (21) is used for supporting a back of the preset dummy (43);
• and
• the pelvic tail connecting portion is connected to the trunk support plate (12) through the pressure sensor (7), the pelvic tail connecting plate (24) is used for supporting the pelvic tail of the preset dummy (43), the third adjusting bolt (22) is used for adjusting an angle of the pelvic tail connecting plate (24) so as to adjust an angle of the pelvic tail of the preset dummy (43), and the fourth compression bolt (23) is used for fixing and connecting the pelvic tail of the preset dummy (43).