Analysis and Design for Comfort Ride of 4-Wheeled Vehicles Vibration on Rural Road Surface and To Reduce Climate Impact

Abstract

Today all type of Transport Vehicles are need of hour for the movement from one place to other, on other hand introduction of advanced technologies of the automobiles are universal demand for improving its dynamic shape for comfort ride, safety majors, and environmental friendly. To fulfill this objective, continual improvements in automobile technologies are taking its pace. In this paper, authors’ focus towards the suspension system to reduce considerably vibration of the vehicles for comfort ride and safety during its braking, acceleration or passes over irregular surfaces at higher speeds such as ramble strips / bumps and speed breakers or uneven road contours in the Indian Road Scenario. A mathematical model is prepared to consider these vibrations considering all four wheels running on irregular roads surface, ramble strips, speed breakers and simulated with software: Simulink / Matlab. Currently the research works are carried out for comfort ride up to 20-35 km per hour speed. In this paper, researches are carried out to improve the comfort zone at 50 km/hour and above for light vehicles at direct and indirect parameters such as: spring constants, damping coefficients, bumps etc. The simulation results were extensively and accurately evaluated on above factors impacting comfort ride of four wheeled vehicles. The result shows that comfort ride is found at speed 62.5 km/ hr or above on rural roads when rear tire damping coefficient ( b r) is 4 kNs/m. Future researches can be done, on Ramble Strips / Speed Breakers at higher speeds for comfort ride.