According to Rahman, Tamin, and Kurdi [5], highest stress point can be identified for components by performing the stress analysis, which is essential for the fatigue life prediction of components. In this research finite element analysis of the grain trailer body is performed. In the static structural analysis performed on the trailer, the static forces created by the trailers body and the cargo are applied on the chassis. The development of the analysis software and its integration into computational analysis now allow for the model to be constrained with the boundary conditions resembling the physical situation it is constrained within. The deflection is validated using the analytical formula. As the highest stress point is the starting point for the fatigue failure.
According to Kassahun [6], responses of the vehicle structural components to the static and dynamic loads are very important to produce good quality vehicles with longer fatigue life, greater strength, low weight and low cost. In this research this is achieved by studying the structural response of the trailer body, by changing the distribution of the axle placing’s to see its effect on the load of the trailers towing eye in terms of stress, strains and deflections.
As a result of this analysis the key structural components of the trailer chassis, which are affected by high values of stress and deflection due to the static loading conditions are identified.
Wang and Rauch [7] conducted research on fatigue analysis and design optimization of a trailer hitch using the finite element method through Ansys software. The study involved testing the trailer hitch to conform within legal legislation and customer specifications. Locations of failure were identified init...
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...his study, such that the cost of fabrication could be reduced without compromising the fatigue strength. FEA and experimental fatigue tests were carried out to study the static and fatigue behaviour of the connections. FEA analysed the effect of weld parameters and local geometry at the cracking area for stress gradient and stress concentration. Twelve specimens of the three designs were experimentally tested for fatigue life.
Harris and Naworocki [12] The finite element method has become an important tool for analysing vehicle structures and has proven to be extremely valuable to the heavy vehicle industry Finite element analysis has been used and been proven to be a very valuable verification tool in various design aspects of heavy vehicles by Karaoglu and Kuraly [9] and Hoberg [13] to successfully reduce the tare mass of the heavy goods vehicle industry. Lan et
There are many differences between solid axles and independent front suspension and how they are both widely used throughout the four-wheel drive world whether on a truck or an SUV and even from the roughest terrain to cruising down the highway. The different types of axle also affects the way a truck or SUV handles while towing a heavy load down the road, either gravel or on a paved surface.
For the other material ASTM A216 Gr WCB same pressure of 16 Mpa is applied and the stress developed is approximately as similar to the connecting rod made with material of cast iron. Figure no. 9 indicates the maximum and minimum stress developed in connecting rod at small & big end. The equivalent stress maximum and minimum values are 71.347 MPa and 4.4955e-5 MPa respectively.
Friction Stir Welding facilitates welding of plate to plate joints for several applications. This process is chosen for the welding of AA 6082-T6 (Al-Mg-Si alloy) of various thicknesses. This alloy finds use in structural and other industrial applications. FSW process is especially well suited to butt and lap joints in aluminium. Production of aluminium alloy components is not very complex but joining of these materials can sometimes
Since the invention of the automobile, there have been many great innovations within the industry. The suspension of the automobile serves as a good example of one of those innovations. Could you imagine riding around in your brand new Nissan Skyline GT-R, with the same suspension methods used to stabilize old horse and carriage buggies centuries ago? That would not serve its purpose very well. Due to the demands of society, vehicle stabilization became a priority to increase safety. Throughout the years, there have been different variations of vehicle suspension systems. For example, we have adaptive air, solid axle, and dead axle suspensions. Without the advancements made in the way we travel and transport goods, civilization could not prosper the way it has.
Investigation of the Relationship Between Mass of a Vehicle and Its Stopping Distance Problem The problem to be investigated is "how does the mass of a vehicle affect its stopping distance when brakes are applied?" This problem is related to the conservation of energy and will be investigated through a trolley going down a ramp. A simple trolley will be used to represent the vehicle and weights attached to the rear of the trolley via a pulley system will act as the brakes. Throughout the experiment energy will be transferred into many forms but no energy will be lost or gained. As the trolley is raised it gains potential energy, when released down the ramp this energy is converted to kinetic energy.
Mechanical Engineering 130.2 (2008): 6 - 7. Academic Search Complete. Web. The Web. The Web.
Comparing the joints welded with two different heat inputs, concluded that the ultimate tensile strength (UTS) and impact toughness of the welded joints decreases with increases the heat input.
Detroit asserts that the Cadillac engine system is responsible for cost reduction especially with regard to the Cadillac maintenance (73). This owes to the fact that the flexible logistics of installation and low consumption of fuel guarantee savings. This vehicle’s engine is efficient due to the fact that it is safe to drive at high and low speeds. The brake system of this vehicle does not require electromagnetic fields in order to function. The model in question is also fitted with emergency tools, which help in case of skidding. These tools include the braking cruise control. Cadillac’s brake system is light unlike other vehicles’ brake systems, and this enhances swiftness in driving the Cadillac. Additionally, this model does not have the shortcoming of fuel loss especially through drags. The Cadillac has Eigen solver system, which is responsible for squeal analysis. In this regard, the need for programming is eliminated. The thermoregulation ensures that the braking system’s heat is controlled. Furthermore, the thermoregulation amplifies the computation performance of squeal. The engine...
NCHRP 2004a Guide for Mechanistic-Empirical Design of New and Rehabilitated Pavement Structures, National Cooperative Highway Research Program, NCHRP, Part 2– Design Inputs, Chapter 2 Material Characterization”.
To develop an Organizational Structure moving from a Partial Hospitalization (PH) program to a supported service such as ACT one must first look at the differences in the services that are provided in a PH program. The individual will have to properly compare PH programs with ACT lively programs. The program would have to be reconstructed within the organizational chart to provide the supported service needs to fit within a community based program. A supported service program such as ACT is a multidisciplinary team approach that assumes responsibility for directly providing acute, active, and ongoing community-based psychiatric treatment. Other prodigious amenities include, assertive outreach, rehabilitation, and support (www.Carf.org, 2016). PH programs are frequently time limited and are medically supervised programs. They offer services that are comprehensive, therapeutically intensive, coordinated, and structured clinical services. PH programs are usually available at least five days a week. Service are provided for the purpose of diagnostic evaluation; active
An organizational analysis is an important tool to become familiar with how medical businesses and organizations are able to meet standards of care, provide services for the community and provide employment to health care providers. There are many different aspects to evaluate in an organizational analysis. This paper will describe these many aspects and apply the categories to the University Medical Center (UMC) as the organization being analyzed.
In my undergraduate years, I have acquired a strong background in the fundamentals of basic mechanical engineering, having studied subjects such as Strength of Materials, Thermodynamics, Fluid Mechanics, Heat and Mass Transfer, Design of Machine Elements and Automobile Engineering. Whilst pursuing my diploma & degree courses, my interest for Automotive Engineering grew even more having learnt more on the different types of internal combustion engines, their configuration and importance. However, what I lacked was a practical understanding on these core areas of Automotive Engineering. To gain a better understandi...
Fatigue in aviation has always been a significant issue when it comes to the safety of the crew and passengers. Fatigue in flight is not the only issue. There is also a serious safety issue in other areas of aviation such as maintenance, air traffic control (ATC), and even in areas such as baggage claim and gate security. One can find evidence of fatigue in just about every aspect of daily life. A majority of vehicle accidents can be contributed to fatigue in one way or another. One can even see it in the late night college student trying to finish a paper before its deadline. Although the last example doesn’t have any serious safety concerns it is still a very real instance of fatigue. The area of transportation has seen thousands of incidents where fatigue has
Lift kits on trucks change the angle of the driveshaft and can cause U-joint and powertrain issues. Slamming a vehicle drastically changes the alignment angles causing the automobile to wear out tires quickly. Another difference between suspension modifications and the upgrades mentioned above is the amount of work involved in returning it to a factory original condition.
Engineering designers must consider how much metal is necessary to withstand the anticipated load for a given application. Since they can make mistakes, or the structure can be misused, they are required to over design the aircraft by a safety factor. Once the necessary mechanical load safety factor has been considered, it becomes necessary to consider whether what corrosion allowance is necessary to keep the aircraft safe.