Mobility robot is mostly used by blind and partially sighted people as a mode of transport, leading to more people becoming vulnerable to invisible harm caused by vibration propagated along with the mobility robot structure. Random vibration from different sources propagated along with mobility robot to members of rider body, commonly known as Whole-body Vibration (WBV). Riders commonly experience WBV due to the propagation of vigorous vibration along with the mobility robot footrest. Therefore, vibration analysis is conducted onto the footrest of mobility robot to study its dynamic characteristics corresponding to the excitation frequency induced from the power train of mobility robot. Simulation analysis approach is selected as the method to conduct Finite Element Analysis (FEA). Computer-Aided Drawing (CAD) drafts of the footrest are prepared using CATIA and import the CAD footrest models to ANSYS Workbench to conduct FEA. Two set CAD drafts of footrests are prepared consist of the original and proposed footrest. As a result, it is found that increasing the mass of footrest can reduce the vibration level by more than 93% for X-axis, 70% for Y-axis and 90% for Z-axis. Furthermore, increasing the stiffness of footrest also increased the natural frequencies with the highest increment percentage in the second natural frequency of the proposed footrest, up to 70.12%. In a nutshell, with the increase of mass and designing an appropriate geometry of footrest able to reduce the vibration level significantly.
