The chassis therefore consists of the engine, powertransmission system, and suspension system all suitably attached to, or suspended from, a structurally independent frame. This class of truck has a gvwr of 26,001 to 33,000 pounds or 11,79414,969 kilograms. The heavyduty trucks category includes commercial truck classes 7 and 8. Books for commercial vehicle engineers sae international. Chassis,frame and body construction notes pdf ppt this post covers the construction of chassis, frame and body of the vehicle which is the one of the contents of vehicle structure and engin. Frame is a ladder shaped structure with two longitudinal railsbeams frame side members and properly located many integrating and reinforcing cross members, which form the ladder structure that is used as the interfaceplatform between the power package and the body package in automobiles. Introduction chassis is a basic structure of the vehicle. Although this construction is widely used, an almost equal number of automobile makers employ a design in which the frame and body are welded together to form an integral unit. Modeling and structural analysis of heavy vehicle chassis made. The aim of this article is therefore to illustrate the design and the development of such a phev diesel light commercial vehicle. Many of vehicles properties are strictly connected with the chassis or frame. Computer aided design of truck chassis was based on the static analysis based. The vehicle technologies office vto hosted a lightweight and propulsion materials workshop in march 2011 in dearborn, michigan.
Optimization of torsional stiffness for heavy commercial. The chassis acts as the backbone of a heavy vehicle which carries the maximum load for all designed operating conditions. Virtual durability simulation for chassis of commercial. Maximum shear stress for steel in all the of three different cross section type of ladder chassis. Ijermce vol 2, issue 12,december 2017 design and stress. Weve selected key sae books, standards, journals, technical.
Page 2 washington state commercial vehicle guide m 3039. Light weighting opportunities and material choice for. Modify or repair chassisframe and associated components. After a brief introduction to the problem formulation section 2, the article presents the main features of the case study hybrid architecture section 3 and the design of the proposed control strategy section 4. Palma 2009 studied the failure of longitudinal stringer of. Sae internationals charitable arm is the sae foundation, which supports many programs, including a. Design and analysis of heavy duty vehicle trailer chassis. Dynamic properties and static or geometric parameters of the vehicle depends on chassis or frames. The materials area of the vehicle technologies office focuses on developing lightweight materials for structures and propulsion materials for. The three different composite heavy vehicle chassis have been modeled by considering three different crosssections. Being the main load bearing structure of the truck, wellconditioned design of the chassis frame is paramount to the success of the truck as a whole. Advanced electric vehicle architectures deliverable d6. Our expert design teams and experienced craftsmen work with you to provide a vehicle tailored to your specific needs, whether that be for sales and service, a mobile classroom, or a mobile veterinary clinic.
The chassis frame supports the various components and the body, and keeps them in. The chassis frame is the backbone of a heavy commercial vehicle hcv. Construction of a heavy vehicle chassis is the result of careful design and rigorous testing. It is usually produced in high volumes for commercial road vehicles, which are completed by the original equipment manufacturer oem with a cabin, axle and powertrain modules to a drivable chassis. One of the most comprehensive encyclopedias of vehicle systems and design, this book features 1600 pages packed with information on automotive design and applications from over 40 subject matter experts. Its main purpose is to securely carry the determined load under all designed operative situations. Some basic tips in vehicle chassis and frame design jve. Specifications pdf chassis specs ford pdf chassis specs freightliner pdf designer guide pdf. Chassis, chassis of vehicle, stress on chassis, chassis strength analysis, automotive frame, ladder frame, chevy truck chassis, kit car. Drivers of vehicles in these classes are required to have a class b commercial driving license cdl to operate the vehicle. Virtual durability simulation for chassis of commercial vehicle mahendra a petale m e mechanical engineering g s moze college of engineering balewadi pune 4111025 prof. Design series very wellknown competitions is the baja sae. Sivaganesan department of mechanical engineering, vels university, chennai, india email.
Design of high strength steel for long member of trucks and. Its suggested that the 4th design trailer chassis wassuitable for mass production and also cost effective. Palma 2009 studied the failure of longitudinal stringer of vehicle. Fatigue life estimation of chassis frame fesm bracket for. Structural stress analysis of an automotive vehicle chassis. The objective of this study was to develop a stiffness model to select an optimum cross section with determined torsional stiffness. Activelevel tm fourcorner air suspension system3 ram 1500 st quad cab shown in bright white. The designed atv is an offroad vehicle powered by 305 cc, four strokes, 10 bhp engine brigg stratton engine and driven by manual transmission. Pdf design considerations for automobile chassis for. State the advantage a monocoque van has over a van with a ladder chassis. Choose between eight trims and six powertrains to find the blend of strength, capability and efficiency thats right for you. The statistic shows exports of commercial vehicle chassis hs code 8706 from the united states between january and december 2017, based on value. The design constraints were stresses and deflections.
Chassis supports the components power plant, transmission system consisting of clutch gearbox, propeller shaft and rear axle, wheels and tyres, suspension, controlling. The automotive chassis provides the strength necessary to support a vehicles components and the payload placed upon it. Generally for heavy commercial vehicle channel section is preferred over hollow tube due to high torsional stiffness. Sae internationals charitable arm is the sae foundation, which supports many programs, including a world in motion and the collegiate design series 1. The objective of the study is to design and analyze on static and dynamic failures of the chassis for all terrain vehicle. Vehicle speed 3545 kmph ditch depth on road 50mm chassis massdensity. The silverado 3500 chassis cab has the power to do it all.
Design and stress analysis of heavy commercial vehicle ladder chassis by finite element method using ansys 1 sivaramapandian j, 2 vikram h, 3 sreesakthivel k 123 department of mechanical engineering, sri venkateswara college of engineering, india. Design and analysis of 40 tonne trailer used in heavy. It consist engine, transmission system, brake system, suspension system, steering system, cooling system, wheels etc. Two long rails running the length of the vehicle, with the engine mounted between them and the axles suspended underneath. Aum8101a modify or repair chassisframe and associated components 5 questions 1. Though, there are many parameters which affect the performance of the atv, the scope of this paper work is limited to optimization, determination, design and analysis of suspension systems and to integrate them into whole vehicle systems for best results. You have heard the word chassis many time in automobile but till now you have confusion about it. Plain road without any ditch virtual proving road with continuous irregular ditches upto 50 mm depths road surface has ditch of 50 mm depth table 1. Oct 27, 2017 you have heard the word chassis many time in automobile but till now you have confusion about it.
Material selected for the chassis based on physical strength, cost and availability. Design and analysis of heavy vehicle chassis by using. Professor g s moze college of engineering, balewadi pune, india 411 045. This paper describes design and analysis of heavy vehicle chassis world. Virtual durability simulation for chassis of commercial vehicle. The image on the left shows a 1920s dodge minus its body, and is a typical example of prewar chassis design. The suspension system contains the springs, shock absorbers, and other components that allow the vehicle to pass over uneven terrain without an excessive amount of shock reaching the passengers or cargo.
Types of chassis and different types of cars according to. The brake system design for this commercial vehicle can now proceed to the design of the pneumatic actuation system, which for most modern heavy commercial vehicles uses compressed air up to a maximum of about 8. Static condition vehicle wheels bki suspension structure can be treated as 2. In this issue of the chassis and vehicle dynamics technology education and training guide, youll find an extensive portfolio of courses designed to keep you ahead of the industry. A trucks chassis frame forms the structural backbone of acommercial vehicle. Virtual durability simulation for chassis of commercial vehicle mahendra a petale. Structural analysis of heavy vehicle chassis using honey comb structure indu gadagottu 1 and m v mallikarjun corresponding author. Design and analysis of truck chassis giridhara v e.
Initially, a prototype design of the chassis was made as a 3d cad model using solidworks cad software. There is some historical information for showing development in vehicle production. Along with strength, an important consideration in chassis design is to have adequate low damage and higher fatigue life. The main aim of the chassis design is capture the static stress and fatigue life of the chassis. On the above single skin chassis rail, name the parts indicated by arrows. Jan 22, 2019 the chassis therefore consists of the engine, powertransmission system, and suspension system all suitably attached to, or suspended from, a structurally independent frame. The first group directly relates to the profitability for which purpose the vehicle has. Design, static and dynamic analysis of an all terrain. The body would then be mounted on top of the chassis. Commercial vehicle an overview sciencedirect topics. Pdf fatigue life estimation of chassis frame fesm bracket. The article describes important stage of the vehicle production, which is design of chassis and frames. The materials area of the vehicle technologies office focuses on developing lightweight materials for structures and propulsion materials for more efficient powertrain systems. Consequently, a modification to the chassis frame should only be attempted after consultation with the vehicle manufacturer or engineer experienced in commercial vehicle chassis modifications to ensure that the proposed.
An integral part of the truck is the chassis frame. The frame structure of a commercial vehicle to which all parts and modules are attached is the central interface of the entire vehicle. It consist engine, transmission system, brake system, suspension. Thus, it should be rigid enough to withstand the various forces acting on it. Hence, it was necessary to rely on physical testing for the validation of the design. Understanding the automotive chassis system axleaddict. Automotive chassis is an important part of an automobile. Vehicle chassis and frame design one of the fundamental and most important stage during designing process is proper develop of chassis and frame of the vehicle, especially for special heavy vehicles. Me6601 design of transmission systems 2 marks with answers. Design of the vehicle chassis has to be started from analysis of load cases. The automotive chassis provides the strength necessary to support a vehicle s components and the payload placed upon it. The chassis frame, however, is not designed for complete rigidity, but for the combination of both strength and flexibility to some degree. This collection is publically available as future reference for all institutions and persons interested in the conceptualization of electric vehicles. The roll cage is designed accordingly to provide all the automotive subsystems.
Figure 1 design criteria of chassis systems for commercial vehicles as seen in figure 1, the general requirements for commercial vehicle chassis systems can be divided into three main groups, which from design viewpoint have different weights. The chassis serves as a frame work for supporting the body and different parts of the automobile it should be rigid enough to withstand the fatigue, shock, twist, vibration and other stresses. This led to some of the critical areas being unnoticed. Design and development of an hybrid light commercial vehicle. Crashworthiness and its influence on vehicle design 157 bryan chinn 7.
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