INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH VOLUME 9, ISSUE 03, MARCH 2020 ISSN 2277-8616 2044 IJSTR©2020 www.ijstr.org Design And Fabrication Of Adaptive Spoiler For Go - Kart Vehicles K.S. Karthi Vinith, P. Sathiamurthi Abstract: The vehicle accident also occurs due to over speed in the cornering, particularly in high speed cars (formula cars). The main objective of project is to replace the DRAG REDUCTION SYSTEM (DRS) in formula cars. The DRS system cost over 2 to 5 lakhs depends upon the formula Race type. On fixing of adaptive spoiler in formula cars it reduces cost and increase the performance and Drag during turning. The major source to reduce the speed of the vehicle is braking system. Another source that can be utilized to decelerate the vehicle on high speed travelling is aerodynamics. Adaptive Spoiler is one major solution for decelerating the vehicle using aerodynamics. Adaptive Spoiler serves to be efficient when compared with conventional spoiler. However, the use of adaptive spoiler with compact and cost effective design is rare in vehicles. The operation of Adaptive Spoiler is based on hydraulic motors and sensors are one of its major drawbacks and it’s not yet equipped in economic passenger cars. The use of adaptive spoiler in super cars is much costlier and does not fall in the economic category. The tilting operation will be controlled by the steering wheel using cable mechanism. The Adaptive Spoiler is pivoted at the center, using a C-clamp. When the steering wheel rotates, the 2 cables attached at both ends of the steering column will push and pull the cables at specific ends in order to tilt the spoiler. The rotation of the steering wheel towards the right will push the cable at the right end and pull it from the left end tilting the spoiler anti-clockwise and vice-versa. The simulation of the Adaptive Spoiler is first done two dimensionally and modeled in SOLIDWORKS 2016 and RHINO software, then analyzed for safe design and stability at various scenarios using ANSYS software. The use of cable will be economical and the whole system will be designed for feasibility, simplicity and best performance. Keywords: increasing down force at rear wheels, reduced skidding and rolling, increased stability. ——————————◆—————————— I. INTRODUCTION A. Background Information Vehicle accident can also occur due to over speed cornering at turns, particularly in high speed cars. The major source to reduce the speed of the vehicle is braking system. Another source that can be utilized to decelerate the vehicle on high speed travelling is aerodynamics. Adaptive Spoiler is one major solution for decelerating the vehicle using aerodynamics. Adaptive Spoiler serves to be efficient when compared with conventional spoiler. However, the use of adaptive spoiler with compact and cost effective design is rare in vehicles. The operation of Adaptive Spoiler is based on hydraulic motors and sensors are one of its major drawbacks and it’s not yet equipped in economic passenger cars. The use of adaptive spoiler in hyper cars is much costlier and does not fall in the economic category. The use of adaptive spoiler in vehicles will be normally activated only above 45 kmph speed. While a vehicle cornering at a speed of 45 kmph and above, the opposite wind force or drag force will be more effective in the operation of adaptive spoiler which increases the traction at the rear wheels which in turn reduces the skidding of the vehicle at the rear end. When a vehicle turns towards right side, the steering angle will tilt the spoiler anti-clockwise. This will cause more drag at the right end of the vehicle thus increasing the down force at the right wheel. The down force is much necessary at the right wheel because the mass of the vehicle will shift towards the left during a right turn and vice- versa. The above same operation actuates at left turn to tilt the spoiler clockwise and the left wheel will get more down force. The tilting operation will be controlled by the steering wheel using cable mechanism. The Adaptive Spoiler is pivoted at the center, using a C-clamp. When the steering wheel rotates, the 2 cables attached at both ends of the steering column will push and pull the cables at specific ends in order to tilt the spoiler. The rotation of the steering wheel towards the right will push the cable at the right end and pull it from the left end tilting the spoiler anti-clockwise. The rotation of the steering wheel towards the left will push the cable at the left end and pull it from the right end tilting the spoiler clockwise. The simulation of the Adaptive Spoiler is first done two dimensionally and modeled in SOLIDWORKS 2016 and RHINO software, then analyzed for safe design and stability at various scenarios using ANSYS software. The use of cable will be economical and the whole system will be designed for feasibility, simplicity and best performance. B. Statement of the Problem The problem statement in this thesis work are high cost adaptive spoiler for stability complicated operating mechanism of adaptive spoiler in super cars, decreased efficiency at normal operating speeds above 45 kmph. This system focuses on reducing the operating complication of adaptive spoiler using mechanical linkages, minimizing the manufacturing cost and increasing the efficiency by utilizing the aerodynamic forces. General objective To design and fabricate a spoiler which adapts and tilts according to the steering wheel. C. Specific Objective ✓ To eliminate the use of high cost active spoiler to increase down force during cornering. ✓ To increase the stability and traction during cornering. ✓ To eliminate the usage of electronic equipment(s) and achieve reverse engineering. ✓ To increase the usage of active spoiler in commercial vehicles. ✓ To fabricate the spoiler for the dimensions calculated. ____________________________________________ • K.S. Karthi Vinith*, Department of Automobile Engineering, Kongu Engineering College, Erode, Tamil Nadu, India. karthivinith.auto@kongu.edu • P.Sathiamurthi, Department of Mechanical Engineering, Kongu Engineering College, Erode, Tamil Nadu, India. Sathiammech@kongu.edu