Study on friction behavior at the interface between prosthetic socket and liner

• Autorzy: Xie Jingyang , Liu Xidong , Tang Jianhua , Li Xi , Li Wei

Identyfikatory

DOI

10.37190/ABB-01751-2020-04

• Języki publikacji: EN

Abstrakty

EN

Purpose: The friction characteristics at the interface between prosthetic socket and liner have an important influence on the walking function and wearing comfort of amputees. The frictional behavior at the prosthetic socket/liner interface can provide theoretical guidance for the design and selection of prosthetic materials. So it is of great significance to study the friction behavior at prosthetic socket/liner interface. Methods: The surface roughnesses of the prosthetic socket and liner materials were measured by a laser confocal microscope. The frictional behavior at the prosthetic socket/liner interface was studied on a UMT TriboLab Tribometer by simulating the reciprocating sliding contact mode. An infrared camera was used to take thermal images and then calculated the temperature increase at the socket/liner interface. Results: The coefficient of friction of the silicon rubber fabric are significantly smaller than that of the foam liner materials. The frictional energy dissipation at the liner/acrylic socket interface is the smallest, while it is greater for 3D-printed socket materials. Meanwhile, the temperature increase has a positive correlation to the coefficient of friction and frictional energy dissipation. Conclusions: The three kinds of 3D-printed materials with high surface roughness have higher interface coefficient of friction and energy dissipation than acrylic material. The stiffness and energy consumption play an important role in the interface friction characteristics of the prosthetic liner materials. The appropriate coefficient of friction at the surface between prosthetic socket and liner is essential. A type of the reinforcement fiber has influence on the friction behavior of the 3D-printed reinforced nylon.

Słowa kluczowe

EN

prosthetic materials; energy dissipation; stiffness

PL

materiały protetyczne; rozpraszanie energii; sztywność

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2021
• Tom: Vol. 23, no. 1
• Strony: 83--93
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Xie Jingyang

• Tribology Research Institution, Key Laboratory for Advanced Technology of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu, People’s Republic of China

autor

Liu Xidong

• Affiliated Sichuan Provincial Rehabilitation Hospital of Chengdu University of TCM, Chengdu, People’s Republic of China

autor

Tang Jianhua

• Tribology Research Institution, Key Laboratory for Advanced Technology of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu, People’s Republic of China

autor

Li Xi

• China Disabled Assistive Devices Center, Beijing, People’s Republic of China

autor

Li Wei

• Tribology Research Institution, Key Laboratory for Advanced Technology of Materials of Ministry of Education, Southwest Jiaotong University, Chengdu, People’s Republic of China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).