MSP5003 Auto and component design
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Added on 2021-04-21
MSP5003 Auto and component design
Added on 2021-04-21
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AUTO AND COMPONENT DESIGN MSP5003 UNIVERSITY OF BOLTON MSP5003 - Auto and Component Design TITLE: Report onGearbox Specification and 3D modellingAUTHOR: VIJAY KADIR RJ (1607306) LECTURER: ROBERT HIGHAM1 | P a g e V I J A Y K A D I R
AUTO AND COMPONENT DESIGN MSP5003 UNIVERSITY OF BOLTON Table of ContentsABSTRACT..............................................................................................................................................3INTRODUCTION.....................................................................................................................................5DESIGNING GEARBOX PROCESS.............................................................................................................6CALCULATION:.......................................................................................................................................7MATERIALS..........................................................................................................................................12COST ESTIMATION...............................................................................................................................14MANUFACTURABILITY.........................................................................................................................15METHODOLOGY...................................................................................................................................17CONCLUSION:......................................................................................................................................18RECOMMENDATIONS..........................................................................................................................19References...........................................................................................................................................20APPENDIX:...........................................................................................................................................222 | P a g e V I J A Y K A D I R
AUTO AND COMPONENT DESIGN MSP5003 UNIVERSITY OF BOLTON ABSTRACT: Designing a gearbox is done by taking and assembling the many gears in required ratios of speed to come up with the end speed that is to be produced. A gearbox posses many types of gears that are combined in proper synchrony that allow reduction of speed. Some of the gearbox types include; synchronic mesh gearbox,sliding mesh gearbox and constant mesh gearbox. Taking note of the sliding mesh gearbox, we are provided with two types, stationery gears and sliding gears. Most applications of a sliding gear are mounting it on to shafts that are splined making them function as they slide along a shaft of an axis that allows different pair meshing of the gears. These gearboxes alternatively can be made better in using many ways since the system of transmission is manual and has a number of disadvantages. Such improvements are possible by use of different methods or its improvement done by improving the selection of gear stepping and their ratios. Such factors that affect these improvements are; fuel consumption, vehicle performance andpollution rate. All these factors are improved by gear ratio varying in the transmission system. Hence, the transmission system has to be designed having ratio gears that are optimal allowing optimum vehicle performance as well as reduced consumption of fuel making the technology more friendly to the environment. If there is need to improve the gearbox’s performance, there is required care in selecting ratios of intermediate gears. The design of the project was finally patched in using an analysis of solid works that analysed manyfactors that were known to be essential.3 | P a g e V I J A Y K A D I R
AUTO AND COMPONENT DESIGN MSP5003 UNIVERSITY OF BOLTON INTRODUCTION: The major reasoning for having a gearbox in vehicles it to facilitate the transfer ofpowerthat comes from engines to be directed to the wheels via the driveshaft.Using various gears allows equally various torque levels that are to be directed to the vehicle wheels with a dependence to the speed that the vehicle moves changing the level of torque requires the gears being used to be shifted by automatic ormanual means, this depends on the transmission type under study[ CITATION Sal15 \l 1033 ].The manual model that was produced first came from Louis-Rene in unison with Emile Levassor. Their invention involved a transmission system that allowed transmission of three speeds in 1894. They produced the design that is the major point of starting for numerous manual transmission system. Levassor and Panhard made use of chain drives in the first transmission system. However, in the year that came afterwards, 1898 Louis Renault used the first design that was present and improved it to another level using the substitution of the driveshaft to make use of a drive chain with an addition of various axle that was applied in the rear wheels ton increase transmission in the designed manual system. This design was key as when the 20 the century began, most manufacturers of cars had to use the non-synchronized transmission that was manual that required improvement taking note of the past designed Levassor/Panhard/Renault designs. The invention that followed was the year 1928. Cadillac made use and developed a better-synchronized transmission system that was manual, with the added reduction in gear grinding and easier shifting of gears[ CITATION Sel16 \l 1033 ]. The improvement also had smooth gear shifting. There is a studied basic gear system evolution concerning the manual gearbox. The use of helical gears is the preference that is chosen first for designing this gearbox due to the quiet and smooth operation of the gearbox in its maximum speed level. However, these types of gears 4 | P a g e V I J A Y K A D I R
AUTO AND COMPONENT DESIGN MSP5003 UNIVERSITY OF BOLTON are difficult to manufacture due to the increased difficulty and complexity in the time, shape, and cost of the involved individual parts[ CITATION Par08 \l 16393 ]DESIGNING GEARBOX PROCESSSpecifications of product’s design: the production or manufacture ofthese gearbox products involve the development of steps or the first development of an imagination to the engineers to be involved. These engineers would then turn the concept of these imaginations into engineering files and drawings that depict the plan of manufacturing the design. Use of PDS, therefore, would allow elimination of unnecessary delay and checklist. The communication inability to pass on an idea would make the eventual design look similar to previous designs as well as the review cycle to make the approval for the incoming step. Using the PDS procedure can be developed only if the gaolsof the design are stated clearly. In PDS, the goals involved have relations to one another, therefore, there is used for rating. Another essential step is the writing of engineering specifications[ CITATION Gen16 \l 1033 ].One appropriate way that the goal of the design can be achieved is by coming up with numerous design attributes. These attributes are then rated depending on the engineering goals with specifications guiding both designers and engineers. The end product could produce different results due to the varying inputs in design. The main purpose is to make the team of designers understand the goals of the design in the imagined process. One way of achieving this is bynoting down specifications required by engineers with the help of engineering design tools such as CAD software. This software allows commencing with the initial process of production. Physical conceptscan easily be used by engineers in coming up with hand sketches. 5 | P a g e V I J A Y K A D I R
AUTO AND COMPONENT DESIGN MSP5003 UNIVERSITY OF BOLTON The final 3D diagram could henceforth be developed by 3D CAD software that optimizes specific model parts. Better knowledge of the materials required for major purposes and the process of manufacturing that satisfies the design of required gearbox design is also facilitated by the software. Selection of material, as well as the process of manufacturing, have to sync with the requirements of the design. Use of PDS design allows various volumes of production. The needs of the customers are therefore identified early enough allowing their independence in the implementation of the final design[ CITATION Gki16 \l 1033 ]. CALCULATION: GEAR RATIO: this ratio has it the definition as direct measurement ratio of depicted speeds of rotation of any interlocking gears. Overall, in the start, there are two gears that include the drive gear that directly obtains more forceof rotation output by the engine having the larger size than the driven gear. The last gear has a higher turn speed and it opposite the direction of the first gear. This brings out the formula; Gear ratio=T2/T1 T1= total teeth number of the first gear. T2= total teeth number of the second gear. Determination of the basic ratio in gears involves the use of at least two engaged gears that is the gear train. Most cases involve the first gear being thedrive gear that has an attachment to motor shaft while the second gear is the driven gear that ah an attachment to the load shaft. In this project, the plan is to design a gearbox of 5-speed specification meaning there is a possibility of using many gears between the mentioned two types. These many gears would facilitate power transmission. Ideal gears are the name of the intermediate gears in between the two. Determining the gear ratio involves proper meshing that facilitates proper constant construct as one gear turns the other[ CITATION Bos13 \l 1033 ]. A comparison of the teeth number is another method that simpler to use in finding the gear ratio in any two gears that interlock. One more way of achieving this is by manual counting of the teeth of gears 6 | P a g e V I J A Y K A D I R
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