Dr. MR Phate
Shraddha. B. Toney
VR Phate
Abstract
The vibrations in the moving parts such as vehicles, machinery is exposed to the various injuries, back pain, muscular disorder etc. The effects of such vibrations are more in the case of driver specially truck driver. In the present work, the investigation is carried out for the human seated posture. Six degrees of freedom (6-DOF) was developed for the human sated posture. Most of the researchers are working in the same direction to minimize the impact of vibration created from the moving vehicles. The apparent mass (AM) was focused for the investigation. Higher value of the response AM causes discomfort and various issues related to the health. The parameters such as the age of the driver, weight, stiffness coefficient of the body segments and the damping coefficients are considered for the investigation. Taguchi’s mixed plan of design of experimentation L18 (21 *33 ) was chosen for the experimentation. Two groups of male subjects (more than 50 years and less than 50 years age) were selected for the investigation. Three drivers with weights less than 60 kg, weight between 60-70 kg and the weight greater than 70 kg were selected for the experimentation. The well-known desirability function (DF) was employed to find out the optimum parameters which minimize the response AM. The human body is a very complex structure so two-dimensional model with six degrees of freedom is selected in the presented work. The present work will help the industries to design the anti- vibrational device. The presented work may also be lengthened to develop similar models with others degrees of freedom
Keywords- Six-DOF, Age, Weight, Stiffness, Damping coefficient, RSM, Desirability function.