Numerical study of the effects of prosthesis foot asymmetry on energy characters and roll-over characteristics

• Autorzy: Jiang Meijiao , Zhang Junxia

Identyfikatory

DOI

10.15632/jtam-pl/170243

• Języki publikacji: EN

Abstrakty

EN

There is limited research available on the effect of asymmetric structure on the performance of the prosthesis. In this paper, 12 sets of prosthetic feet with asymmetric structures were developed using a planar polar coordinate system. The effect of asymmetry on the prosthesis performance was investigated. The prosthetic feet with asymmetric structures were modeled in a gradient manner within a polar coordinate system. A finite element (FE) model of the prosthetic walking process was formulated, and dynamic simulations were conducted to simulate the loading of the prosthesis during the support phase. Evaluation indices such as energy characteristics, contact pressure and roll-over shape were selected to investigate the effects of the asymmetric structure. The results indicate that θ1 and θ3 asymmetry significantly affects strain energy density. Moreover, incorporating heel asymmetry proves to be more advantageous in reducing contact pressure of the prosthesis during the middle stance moment. The optimal parameters for asymmetric prostheses are determined based on these findings.

Słowa kluczowe

EN

biometric prosthetic foot; carbon fiber epoxy composites; roll-over shape; energy store and return character

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2023
• Tom: Vol. 61 nr 4
• Strony: 687--700
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Jiang Meijiao

• College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin, China

autor

Zhang Junxia

• College of Mechanical Engineering, Tianjin University of Science and Technology, Tianjin, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).