DESIGN, ANALYSIS AND FABRICATION OF AN OFF ROAD TRAILER

Abstract

Modern Heavy duty vehicles are commonly used to transport heavy goods, materials from one place to another by carrying out best performance in transportation. Due to the running condition of vehicle as well as engine, there is a great impact of deformation which is produced in the chassis with the time. This deformation is due to the reason that the continuous shocks from the road as well the engine produces vibration and the vibration produces deformation. The stability of vehicle trailers is very importance during the transportation of goods through uneven surfaces likes Rocky Mountain Surfaces as the disturbances in the motion of vehicle can affect the cargo. Hence, the target is to achieve higher stability by reducing deformations and providing smooth journey to the cargo supported by Trailer by resisting shocks and loads. In this project, we will be studying different load conditions involved, the vertical deformation in the kingpin, Frame torsion and the respective deformations produced due to the loadings, by the involvement of Finite Element Analysis. The model of the trailer is a Flat Bed Trailer, and the proper analysis of a trailer is to be carried out. The analysis of trailer parts involves the Chassis analysis, Suspension parts analysis. The chassis that we are incorporating in our model is Ladder Frame Chassis with their respective side members and cross members. Chassis plays a vital role in supporting the frame of a trailer, as it provides trailer a capability to absorb shocks. The chassis is a lower body of an automobile that serves a framework for supporting the body and different parts and assembly of automobile including the Tires, Engine, Frame, Driveline and Suspension. The chassis should be capable of resisting Twisting, Vibrations, Shocks and other stresses. The frame consists of series of cross members, attached with the two side members. The analysis of the Chassis helps us to locate the critical points having the greater value of stresses and deformations at the respective points. Critical point is actually one of the reason of causing sort of Failure known as Fatigue Failure. The magnitude of the stress incorporated in it can be helpful in predicting the life span of Chassis. Finite Element Analysis (FEA) is done on ANSYS Workbench. ii