1.HASAN MUHAMAD ABID - Universiti Kuala Lumpur, Malaysia France Institute, Section 14, Jalan Teras Jernan, 43650 Bandar Baru
Bangi, Selangor, Malaysia.
2. EIDA NADIRAH ROSLIN - Universiti Kuala Lumpur, Malaysia France Institute, Section 14, Jalan Teras Jernan, 43650 Bandar Baru
Bangi, Selangor, Malaysia. .
3. HAFIS AMIN HAZILAN - Universiti Kuala Lumpur, Malaysia France Institute, Section 14, Jalan Teras Jernan, 43650 Bandar Baru
Bangi, Selangor, Malaysia. .
All helmets that we wear while riding on a road is affected by aerodynamic force. This acting aerodynamic force on the helmet is important because it will affect the rider’s stability, handling, and durability for a long ride. It is known that helmets used by professional riders are the best in design since it is built for racing purpose which insure the aerodynamic characteristic have been applied in their shapes. However, the helmets that been used daily, such as open face helmets, need some design improvement to ensure there is smooth airflow pass on the helmet shell. Rapidly there are regions of low pressure created at the rear of the helmet. These will produce drag force due to lack of the air being forced to refill in that region. Therefore, this study will focus on the investigation of the drag force created by the standard open face helmet and the design improvement to comply with the aerodynamic requirement. The analysis will be conducted on three different designs of helmets that can reduce the drag coefficient and increase the helmet aerodynamic performance, greater stability, and reduce the stress on rider’s neck when ride at high speed. This analysis will use ANSYS software that Visualizes airflow patterns around the helmet by computational fluid dynamics (CFD) methods for a constant speed. The findings showed that three helmet form and head position have a significant influence on drag forces, pressure and turbulence distributions on the entire helmet due to the change in angle and the location of the respective separation and attachment areas around the helmet.
Motorcycle Helmet, Optimization Design, Drag Coefficient, Turbulence, Ansys, CFD