Stress Analysis of Modern Leaf Springs Made by Different Materials for New Agricultural Trolleys

Abstract

Tractors can be used in a variety of agricultural operations that require towing. All these transportation tasks are now carried out in mechanized enterprises using trolleys attached to the back of the tractor. In practice, transport conditions vary significantly depending on the product. Because of this reason, nowadays the design properties of tractor trolleys with different capacities change with technological advances in material science and carrying requirements, as well as weight carry needs in agricultural applications. Today, computer-aided design has become an integral part of computer-aided engineering and has made it possible to evaluate many materials before production with the finite element analysis methodology. Because of this reason, the focus of this technical research was on the new leaf spring properties based on steel, steel alloy, and carbon steel materials manufactured using modern methods. One of the main uses of tractors in agriculture is pulling. In practice, pulling not only agricultural machines but also various types of agricultural trolleys that are indispensable for agricultural enterprises is an important area of use. Conditions such as carrying weight in agricultural trolleys vary depending on the purpose of use and their designs are also different. For this reason, determining the properties of new leaf springs based on steel, steel alloy, and carbon steel materials produced using modern methods and more suitable for today’s agricultural conditions and heavy-weight trolleys is the focus of this study. According to the results obtained from steel, steel alloy, and carbon steel materials for 20- and 40-tons carrying capacities, it is found that the maximum Von Mises stress is 5868.48 MPa under 200000 N load for carbon steel material, also the maximum displacement is 15.4907 mm under 200000 N load for carbon steel material and maximum safety factor under 15 ul 200000 N load for all materials. Additionally, under 100000 N, the order of carbon steel and steel alloy displacement values are different from the regular behaviour of the materials order. Computer-aided design and analysis revealed modern leaf springs based on the increase in the carrying weight requirements of agricultural carrying applications. So, based on the results carbon steel material is the last material to be evaluated among all evaluated materials for the modern leaf springs production for agricultural trolleys.