Astrox has over fifteen years of experience in hypersonic vehicle design and analysis. Astrox Corporation has developed a conceptual design system called HAVDAC © (Hypersonic Astrox Vehicle Design and Analysis Code) and an object-oriented version of this design environment called HADO © (Hypersonic Aircraft Design Optimization). The HAVDAC code and HADO systems have been incorporated into the current suite of SIDE derived products such as HySIDE, SuperSIDE, and SpaceSIDE. HAVDAC and HADO employ an inverse design methodology which is capable of generating vehicle geometries, and analyzing the design point performance of those geometries in very short run times. Being a design code, as opposed to a CFD code, HAVDAC is able to exploit the simplicity and speed of approximate analysis techniques while still maintaining a good degree of accuracy in the performance results. Utilization of HAVDAC and HADO’s rapid design and analysis capabilities allows for both the systematic study of the effects of the various design inputs, as well as the application of a numerical optimization to produce optimized vehicles.
The HAVDAC and HADO systems have the unique capability to design vehicles that may have 2-D, outward-turning-axisymmetric, or inward-turning-axisymmetric geometries that have thus far remained unexplored. The vehicles with inward-turning inlets have the added and important advantage of reducing the actively cooled surface areas or even eliminating them altogether, thus significantly reducing the vehicle weight. This also results in higher effective specific impulse and hence less fuel carried to reach the same range or in increasing the range.
The HADO system is a more comprehensive system than the HAVDAC code because it consolidates the HAVDAC code with other design modules which:
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