Design and Structural Analysis of Chassis

  B. Ramya,  Sridhar Reddy,  Dr. C. Udaya Kiran

A Vehicle is a Structural Assembly which consists of many components coupled together to make the vehicle to run on initial conditions as well as under various load conditions. Vehicles are designed to carry loads like trucks, buses and cars. Different types of vehicles with wide variety of its applications are present in the market which capacity varies from 1Tonne to 40Tonnes and more. The present scenario in automotive industry is an increase in demand of trucks not only on the cost and weight aspects but also on improved complete vehicle features and overall work performance. The chassis plays an important role in the design of any truck. The chassis design in general is a complex methodology and to arrive at a solution which yields a good performance is a tedious task. Since the chassis has a complex geometry and loading patterns, there is no well-defined analytical procedure to analyze the chassis. So the numerical method of analysis is adopted, in which Finite Element Technique is most widely used method. Vehicle chassis is an important part which supports the major load of the vehicle assembly. As vehicle chassis plays a vital role, its design has to be subjected to Structural Analysis to validate against all the possible cases of load applications and failures to strengthen the design. A Truck’s chassis Frame forms the structural backbone of a commercial vehicle. The main function of the truck chassis frame is to support the components and payload placed upon it. When the truck travels along the road, the chassis is subjected to vibration induced by road roughness and excitation by vibrating components mounted on it. This paper presents the study of the vibration characteristics of the truck chassis that include the natural frequencies and mode shapes. The responses of the truck chassis which include the stress distribution and displacement under various loading condition are also observed. The method used in the numerical analysis is finite element technique. The results show that the road excitation is the main disturbance to the truck chassis as the chassis natural frequencies lie within the road excitation frequency range. The mode shape results determine the suitable mounting locations of components like engine and suspension system. Some modifications are also suggested to reduce the vibration and to improve the Strength of the truck chassis.

Keywords- Chassis

Unique Identification Number - IJEDR1404034
Page Number(s) - 3584-3589
Pubished in - Volume 2 | Issue 4 | Dec 2014
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  B. Ramya,  Sridhar Reddy,  Dr. C. Udaya Kiran,   "Design and Structural Analysis of Chassis", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.2, Issue 4, pp.3584-3589, Dec 2014, Available at :http://www.ijedr.org/papers/IJEDR1404034.pdf