Desain dan Analisis Elemen Hingga Model Wrist Hand Orthosis Berbasis Metode Pemodelan Reverse Engineering

Authors

  • Zakki Fuadi Emzain Politeknik Negeri Malang
  • Nanang Qosim Politeknik Negeri Malang
  • AM. Mufarrih Politeknik Negeri Malang
  • Yusuf Dewantoro Herlambang Politeknik Negeri Semarang
  • Fatahul Arifin Politeknik Negeri Sriwijaya

DOI:

https://doi.org/10.32497/jrm.v18i1.3936

Keywords:

finite element analysis, reverse engineering, wrist-hand orthosis

Abstract

Salah satu treatment untuk  spasticity  efek pasca stroke,  fracture  karena  kecelakaan,  injury  karena  cedera olahraga, dan  musculoskeletal disorders  karena pekerjaan kantoran pada pergelangan tangan selain dengan operasi yaitu dengan penggunaan  wrist hand orthosis. Umumnya pembuatan  medical device  tersebut menggunakan metode konvensional yang mempunyai kekurangan. Hadirnya teknologi  reverse engineering  (RE) dapat diaplikasikan dalam bidang medis seperti pembuatan alat prosthetic atau orthosis. Pada penelitian ini bertujuan untuk mengembangkan desain  wrist hand orthosis  berbasis  reverse engineering  dan menganalisisnya menggunakan metode elemen hingga. Metode penelitian meliputi 3D scanning, CAD modelling, model analysis, dan post processing. Material model yang digunakan adalah ABS dengan variasi ketebalan 5 mm, 6 mm, dan 7 mm, serta besar nilai pembebanan mulai dari 5 N sampai 25 N. Hasil analisis  equivalent stress  menunjukkan model ketebalan 5 mm mampu menahan  load  25 N dengan  maximum  equivalent stress  sebesar 13.52 MPa yang masih tergolong aman dengan nilai safety factor 2.11 dengan area kritis di ujung punggung telapak tangan model antara ibu jari dan jari telunjuk. Hasil  equivalent elastic strain  dan  deformation  juga mempunyai tren grafik yang sama dengan nilai  maximum  pada model ketebalan 5 mm yaitu masing-masing sebesar 0.0057 mm dan 0.616 mm. Dari hasil analisis tersebut dapat disimpulkan bahwa model  wrist hand orthosis  berlubang voronoi yang memiliki bentuk seperti  surface  tangan manusia dengan ketebalan minimalis 5 mm mampu bekerja dengan baik memfiksasi tangan pasien untuk proses rehabilitasi.

Author Biographies

Zakki Fuadi Emzain, Politeknik Negeri Malang

Teknik Mesin

Nanang Qosim, Politeknik Negeri Malang

Teknik Mesin

AM. Mufarrih, Politeknik Negeri Malang

Teknik Mesin

Yusuf Dewantoro Herlambang, Politeknik Negeri Semarang

Teknik Mesin

Fatahul Arifin, Politeknik Negeri Sriwijaya

Teknik Mesin

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Published

2023-04-20