STATIC ANALYSIS OF HEAVY VEHICLE LEAF SPRING BY USING FEA METHOD
INTRODUCTION
The most basic type of spring that is frequently utilized for suspension in wheeled vehicles is the leaf spring. Although steel is still the primary material used to make leaf springs, most auto manufacturers now use composite materials to save weight. Composite materials such as carbon/epoxy, graphite/epoxy, and e-glass/epoxy are utilized. Leaf springs were classified as teraservers, quarter elliptical, and three-quarter elliptical, semi-elliptical, and elliptical. The basic components of a leaf spring are the master leaf, the center bolt, the central clamp, the eye, and the rebound clip. Therefore, in order to better comprehend the work done, we attempt to evaluate all of these earlier papers in this paper. The load-carrying capability was determined by analytics and algorithms in earlier studies
We are aware that, from the perspective of suspension, the spring is a crucial component of any car. The most common kind of suspension system seen in both light and large cars is the leaf spring. In the modern world, it is becoming increasingly necessary to research items that reduce weight while preserving or boosting strength. Depending on the type of road irregularity, the back wheel is subjected to compressive or tensile vertical forces when it encounters a bump or pit. These are taken up by the spring’s elastic shear, bending, twisting, or compression. The kind and composition of the spring that is being employed determines the mode of spring resistance. Additionally, it starts when the front wheel hits a bump.
RESEARCH GAP
Loss of weight is currently the main problem in automotive endeavors. Because of the composite leaf spring’s superior quality and weight distribution at a comparable load, the automotive industry has been enthusiastic about replacing traditional steel springs with composite ones in order to reduce vehicle load. In addition, this approach reduces erosion obstruction, noise pollution, and vibration from the road for more comfortable riding. All of these conditions are defeated by the composite materials, which also improve driving comfort. As can be seen from the writing summary, the analysts have conducted a ton of examination work in addition to working with the standard Steel leaf spring. Analysts used the restricted component approach to look into what would happen if it were used in real-world situations
EXAMINATION OF THE PROBLEM
Weight plays a big part in determining how effective a car is. The majority of the time, steel leaf springs are used, which are heavy and one of the expected causes of cars losing weight because they account for 10–20% of the spring weight on their own. An effort is being made to replace the material with cutting-edge materials such as composite materials in order to avoid this obstacle and comfort riding characteristics. The main focus of this work is on replacing the typical leaf springs of a suspension framework with thermoplastic polyimide with 30% carbon fiber reinforced (composite material) in order to reduce the weight of the item and enhance its security, comfort, and solidity.
Author
Dr.P. K. Sharma
Principal, NIRT