Characteristic research of lower extremity injuries in elderly pedestrians during collisions

• Autorzy: Xiao Sen , Zhang Lidong , Wu Jindong , Liu Xiaoang , Zhang Hao

Identyfikatory

DOI

10.37190/ABB-02172-2022-05

• Języki publikacji: EN

Abstrakty

EN

The aim of this research is to study the trend of pedestrian lower extremity injuries during vehicle-pedestrian collisions. Methods: In this study, pedestrian’s age, collision angle and pedestrian’s position are considered influencing factors. Nine experiments using a novel lower extremity mechanical model are designed with the orthogonal experiment method. Results: Under the same collision angle, collisions in the left and right positions caused more serious tibia injuries than the middle position. As for the collision angle, the tibial injury at +45° is more significant than the tibial injury at −45°, and the injury of oblique collisions is slightly greater than that at 0°. Moreover, tibial injury is more sensitive to research variables than femoral injury. When the collision angle and position are changed, the difference ratio of tibia stress is by 483.2% higher than that of femur stress. The axial force and bending moment of the quadriceps tendon in the left-position collision reach peak values, which are 3.83 kN and 165.98 Nm, respectively. The peak quadriceps tendon axial force is captured with the collision angle of −45°, and the peak quadriceps tendon bending moment is obtained with a collision angle of +45°. Conclusions: The effects of differences in impact position and angle on lower extremity injury in the elderly were analyzed, and the results of this study can be used as a reference for research on lower extremity protection.

Słowa kluczowe

EN

lower extremity injury; car pedestrian collision; impact position; impact angle

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2022
• Tom: Vol. 24, no. 4
• Strony: 95--108
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Xiao Sen

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.
• Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles, Hebei University of Technology, Tianjin, China.

autor

Zhang Lidong

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.

autor

Wu Jindong

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.

autor

Liu Xiaoang

• China FAW Group Corporation,Changchun, China.

autor

Zhang Hao

• School of Mechanical Engineering, Hebei University of Technology, Tianjin, China.

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