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|Title:||FEM Analysis of Indian Human Subject|
|Keywords:||Modal analysis;Standing posture;Natural frequency;FEM|
|Abstract:||Human body experiences discomfort in regular life when comes in contact with the vibrating surface. Prolonged exposure to vibration causes injuries, pain in lower back and illness. Mostly, people travel in standing posture in walkways, buildings, lifts, escalators, buses, trains, trams etc. Different biodynamic models i.e. finite element model (FEM), lumped parameter model (LPM) and multi body dynamics (MBD) model have been developed to study the biodynamic response of human subjects under different postures and vibration conditions to reduce discomfort and injuries. In this research work, an attempt has been performed to study on human subject using FEM and the comparison of results obtained by modal analysis on 76 kg Indian male human subject in standing posture using ellipsoidal and solid modeling has been performed. It has been found that effect of vibration transmits from head to lower arms with the increase of natural frequency up to 25.11 Hz and maximum deformation of 33.81 mm has observed in lower arms for ellipsoidal human model. In case of solid human model, maximum deformation of 32.39 mm has been observed at natural frequency of 24.36 Hz in lower arms. The results obtained using both the approaches are in validation with existing literature.|
|ISSN:||0975-1084 (Online); 0022-4456 (Print)|
|Appears in Collections:||JSIR Vol.78(08) [August 2019]|
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