A Child Orthosis Design and Simulation Based on Dynamic Considerations

  • Cristian CopilusiEmail author
  • Nicolae Dumitru
  • Alexandru Margine
  • Adrian Rosca
  • Eugen Rosu
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


This paper addresses a knee orthotic system design used on a 4-year-old child with locomotion problems. This knee orthotic system design was made by performing a dynamic analysis of the proposed child locomotion system. The aim of this dynamic analysis was to obtain knee joint connection forces in case of a walking activity. For the proposed dynamic model, input data such as hip, knee and ankle joint motion laws were considered. These were obtained through an experimental analysis with a high-speed video camera equipment on a healthy child. Thus, a database was created, which was used as input data for numerical simulations made in a dynamic mode with MSC Adams. Through these numerical simulations, important results were obtained, and these will further validate the proposed prototype.


Dynamics Mechatronic system Locomotion system Multibody systems Knee orthosis 


  1. Anderson FC, Pandy MG (2001) Dynamic optimization of human walking. J Biomech Eng 123(5):381–390CrossRefGoogle Scholar
  2. Banala SK, Kulpe A, Agrawal SK (2007) A powered leg orthosis for gait rehabilitation of motor impaired patients. In: Proceedings of the IEEE international conference on robotics and automationGoogle Scholar
  3. Contemplas (2010) Motion equipment. User manual (online).
  4. Copilusi C, Dumitru N, Marin M, Rusu L (2012a) Children orthotics and prostheses devices designed from cinematic and dynamic considerations. Eng Lett J 20(4):301–316Google Scholar
  5. Copilusi C, Dumitru N, Margine A (2012b) Modular knee orthosis fem analysis from kinematic considerations. New Trends Mech Mach Sci 7:431–439CrossRefGoogle Scholar
  6. Dumitru N, Nanu G, Vintilă D (2008) Mechanisms and mechanical transmissions: modern and classical design techniques. Didactic printing house, BucharestGoogle Scholar
  7. Giesbers J (2012) Contact mechanics in MSC Adams. A technical evaluation of the contact models in multibody dynamics software MSC Adams. Bachelor thesis, University of TwenteGoogle Scholar
  8. Onose G et al (2016) Mechatronic wearable exoskeletons for bionic bipedal standing and walking: a new synthetic approach. Front Neurosci 10:343–358CrossRefGoogle Scholar
  9. Sawicki G, Ferris D (2009) A pneumatically powered knee-ankle-foot orthosis (KAFO) with myoelectric activation and inhibition. J NeuroEng Rehabil 6:23. Scholar
  10. Sohl GA, Bobrow JE (2001) A recursive multibody dynamics and sensitivity algorithm for branched kinematic chains. ASME J Dyn Syst Meas Control 123(3):391–399CrossRefGoogle Scholar
  11. Theranova (2016) Orthoses products catalog (online). Accessed 27 Mar 2018

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Cristian Copilusi
    • 1
    Email author
  • Nicolae Dumitru
    • 1
  • Alexandru Margine
    • 1
  • Adrian Rosca
    • 2
  • Eugen Rosu
    • 3
  1. 1.Department of Applied Mechanics and Civil ConstructionsUniversity of CraiovaCraiovaRomania
  2. 2.Department of Automotive, Transports and Industrial EngineeringUniversity of CraiovaCraiovaRomania
  3. 3.Department of Applied Mechanics and Civil Constructions, Faculty of MechanicsUniversity of CraiovaCraiovaRomania

Personalised recommendations