รายละเอียดผลงาน

Abstract. Transient vibrations can aect the comfort and safety of wheelchair users. We developed and tested an 11-degree-of-freedom (11-DOF) model of a wheelchair-user system with foam-based cushions to examine the transient vibration eects on various body parts and the seat under sinusoidal inputs. We employed state space and Laplace transform methods to obtain analytical solutions for the displacement responses in the time domain. We validated our model with experimental data and achieved a high goodness-of-t of 89.7[%]. We assessed the relative amplitude, frequency, and time of the maximum and minimum values of the displacement responses for dierent body seg- ments and wheelchair components. We discovered that the torso was most aected by the vibrations, while the pelvis was least