Abstract
This chapter continues the Shark design by developing some details or examples of procurement specifications for certain components. The components considered are: the wheels, drive, array, battery, ventilation system, and brakes. Some examples of student-produced assembly drawings for a solar car are shown to illustrate the final product.
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Notes
- 1.
The drawings are not for the Shark, but for a later car.
- 2.
However, Storey (1994) reports that some teams in the 1993 World Solar Challenge built their own wheel motors. A necessity: At the time there were no commercial sources for such motors.
- 3.
Or, as in the case of Clarkson’s 1990 Sunrayce car, a hockey puck directly driving the left-rear wheel.
- 4.
The efficiency of the actual two-speed transmission over its operating range should be determined to insure transmission losses do not cancel the gains in motor efficiency.
- 5.
This cannot be as conveniently done with a branching system like that in Fig. 18.11 because the exit pressures are different.
- 6.
If turbulent, separated flow dominates in the system, and heating effects are not large, the total loss coefficient will be nearly constant.
- 7.
Hoerner (1965) contains a section on inlet and outlet designs. See also Mossman and Randall (1948) for information about low-drag National Advisory Committee for Aeronautics (NACA) submerged inlets, or “NACA ducts.”
- 8.
By standard methods; see Hibbeler (1998) or similar texts.
- 9.
Much more efficient cells can be used, if the money is available, under American Solar Challenge rules and giving array powers of 1600 W, or more.
- 10.
The number purchased should allow about 25 % for breakage.
- 11.
The actual mass of a Solectria MPPT.
References
Bleck, O. (1993). “Understanding and selecting the proper drive system for an electric Vehicle,” APN2001. Arlington: Solectria Corporation.
Evans, C., Leonard, S., & Redick, M. (1999). Sunrayce 1999 structural design report. Potsdam: Clarkson University Solar Knights.
Gillespie, T. D. (1992). Fundamentals of vehicle dynamics. Warrendale: Society of automotive engineers.
Hibbeler, R. C., (1998). Engineering mechanics dynamics (8th ed.). Upper Sadle River: Prentice-Hall.
Mossman, E. A., & Randall, L. M. (January 1948). “An Experimental Investigation of the Design Variables for NACA Submerged Duct Entrances,” NACA RM-A7130.
Rauschenback, H. S. (1980). Solar cell array design handbook. New York: Van Nostrand-Reinhold.
Storey, J.W.V., Schinckel, A. E. T., & Kyle, C. R. (1993). Solar racing cars. Canberra: Australian Government Publishing Service.
Whitt, F. R., & Wilson, D. G. (1974). Bicycling science. Cambridge: The MIT Press.
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Thacher, E. (2015). Solar Racer—Detailed Design. In: A Solar Car Primer. Springer, Cham. https://doi.org/10.1007/978-3-319-17494-5_10
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DOI: https://doi.org/10.1007/978-3-319-17494-5_10
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