Assume that you are appointed by a university as the technical manager of the University's Formula-SAE-A...

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Mechanical Engineering

Assume that you are appointed by a university as the technicalmanager of the University's Formula-SAE-A Race Car project and youare required to:
a) Identify the relationships between operational objectivesand functional requirements for the case of a new Formula-SAE-ARace Car (F-SAE-A) in 2018. Cite three operational objectives andthe functional requirements that are needed to realise theseobjectives via using qualitative measures only; and

b) What is meant by â€œMOEâ€? For the effectiveness analysis ofthe F-SAE-A, list what you think would be the 10 most importantcharacteristics that should be exercised and measured in theanalysis. For one of the MOE of the F-SAE-A, describe anoperational scenario for obtaining a measure of itseffectiveness.

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housings Indeed carbonepoxy composites possess the superior combination of high specific strength almost limitless formability and specific stiffness required to handle the extreme stresses resulting from accelerations on the order of four times the force of gravity while conforming to a contorted aerodynamic shape and maintaining precise geometric alignment at all times Even though composites have become ubiquitous in high performance race car structures most companies and teams keep their construction techniques proprietary Most available information concerning the design construction and repair of composite structures is published by the aerospace industry which deals with substantially different geometries as well as loading and safety requirements Over the past few years the USNA FSAE team composite design efforts have ranged from simple fiberglass non structural fairings to detailed studies on carbon fiber suspension components 5 As a logical progression the USNA FSAE team elected to go forward with a composite monocoque frame for the 2011 and subsequent competitions This paper serves to document the design and fabrication of the monocoque frame In the interest of brevity most of the validation tests and results have been omitted in this paper but are well documented for the interested reader to investigate 6 7 It is the authors hope that other teams with limited composites design and manufacturing experience can enjoy the vehicle performance benefits made possible with a carbon fiber reinforced plastic CFRP monocoque frame DESIGN PROCEDURES This section outlines the design procedures followed in the construction of the composite monocoque frame First the overall monocoque type and dimensions were determined The design process continued with understanding the applicable equivalency requirements needed to safely replace a traditional steel space frame with a CFRP monocoque frame Next composite materials and layup techniques were selected based on advertised material properties and preliminary analysis tools Once design choices were validated using various component level tests the monocoque was completed Monocoque Type For this class of vehicles there are various ways to incorporate composite materials into the design The simplest method is to replace some of the steel members of a traditional space frame with composite shear panels on the sides top and bottom of the vehicle These panels provide a modest weight reduction while adding some torsional rigidity to the frame The other extreme is to replace nearly all of the steel tubing with a full monocoque frame The competition rules still require a steel roll hoop for driver protection so it is not possible to replace all of the steel tubing However this approaches would likely result in the greatest weight reduction and also the greatest increase in rigidity Unfortunately this method is also the most complex and requires extensive tooling A more moderate approach is to mate a steel rear space frame module to a carbon monocoque forebody This hybrid approach should result in significant weight savings and an increase in torsional rigidity over the steel space frame Figure 1 shows the relative benefits associated with these various approaches The Naval Academy team elected to use the hybrid frame approach Figure 1 Frame types and relative advantages Equivalency Requirements The FSAE competition rules provide detailed requirements for teams who elect to deviate from the traditional steel space frame construction 1 These safetybased requirements are meant to ensure that the composite monocoque frames are equivalent to or stronger than the SAEAISI 1010 steel frames they are to replace in terms of energy dissipation and yield and ultimate strengths in bending buckling and tension Figure 2 shows areas on a See Answer

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