Modification in the design of two-wheelers helmets for improved comfort of Indian riders

Abstract

Existing helmets consist of the durable exterior which is of light-weight (polycarbonate, carbon fibre or composite fibre), its shielding is made up of polystyrene layers together with a comfortable padding of urethane.  These helmets are used to protect the rider's head during the crash but it becomes difficult to wear helmets in summer for longer durations due to a rise in temperature and poor ventilation mostly in Asian countries as it increases the stress level of the riders. Thus there is an urgent need for modifications in the design of the helmet which can provide improved thermal comfort with superior visibility, better aerodynamic shape in addition to which can reduce discomfort due to accumulation of carbon dioxide and provide good relief against dust and rain.  An attempt has been made in the present study to conceptually design a two-wheeler helmet that can meet the requirements of the users.  Further 3D model of the existing and proposed helmet is made on CAD software (solid works) and a comparison of the existing and proposed model with all features is performed on ANSYS software. In the present work, CFD simulation was also used which shows that in the proposed design there is improved the flow of air inside the helmet which will increase the comfort level of the users against heat and humidity.