Human Subject Response During WBV in Different Postures by Using FEM Analysis
Abstract
Human body experienced uncomfortable when exposed to vibration condition during working, traveling in automobile and other work in standing and sitting posture. During this work, the human subject behavior has been observed using modal analysis while in standing as well as sitting posture. The 3D CAD model has been considered by the ellipsoidal approach that anthropometric data corresponds to 50th percentile has been considered to model 54 kg male human body belonging to Indian population in sitting posture and 95th percentile anthropometric data has been taken for modeling 76 kg mass human subject while in posture of standing. The results evaluation has been done in this study and found that a maximum vibration effect transmit from head towards lower arms by increasing in natural frequencies i.e. 3.22 Hz to 20.65 Hz in sitting posture and 4.25 Hz to 29.54 Hz in standing posture. And it will be helpful for construction of component for use of human like in machine parts, automotive sector, escalators, etc. the comparison between standing and sitting posture results observed that the decrease in deformation has been observed while with the rise in natural frequency for both postures.
