6AP wheel: A new transformable robotic wheel for traction force improvement and halting avoidance of a UGV on soft terrains

• Arman Mardani ^[1] ; Saeed Ebrahim ^[1] ; Khalil Alipour ^[2]
  1. [1] Yazd University

     Yazd University

     Irán

     
  2. [2] University of Tehran

     University of Tehran

     Irán

     
• Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 50, Nº. 10, 2022, págs. 3370-3385
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • This article develops a new reconfigurable wheel composed of Six Adaptive Prisms (6AP). Then, an Unmanned Ground Vehicle (UGV) is established with four proposed wheels to investigate some primary tasks.

    Wheel-soil formulation of the considered UGV is derived by Soil Contact Model (SCM). Considering SCM results, equations of motion of this robotic system are derived using the Lagrange approach. After that, 3D gap analysis and experimental geometric investigations are used to show the similarity between the outer form of the new mechanism and circumscribed circle. Furthermore, some advanced simulations such as getting unstuck from sand and reconfiguring of 6AP wheels are conducted to demonstrate the merits of the suggested wheel as compared with simple wheels.