solid rocket motor design using hybrid optimization
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ID: 190908
2012
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Abstract
A particle swarm/pattern search hybrid optimizer was used to drive a solid rocket motor modeling code to an optimal solution. The solid motor code models tapered motor geometries using analytical burn back methods by slicing the grain into thin sections along the axial direction. Grains with circular perforated stars, wagon wheels, and dog bones can be considered and multiple tapered sections can be constructed. The hybrid approach to optimization is capable of exploring large areas of the solution space through particle swarming, but is also able to climb “hills” of optimality through gradient based pattern searching. A preliminary method for designing tapered internal geometry as well as tapered outer mold-line geometry is presented. A total of four optimization cases were performed. The first two case studies examines designing motors to match a given regressive-progressive-regressive burn profile. The third case study studies designing a neutrally burning right circular perforated grain (utilizing inner and external geometry tapering). The final case study studies designing a linearly regressive burning profile for right circular perforated (tapered) grains.
| Reference Key |
albarado2012internationalsolid
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|---|---|
| Authors | ;Kevin Albarado;Roy Hartfield;Wade Hurston;Rhonald Jenkins |
| Journal | shanghai kou qiang yi xue = shanghai journal of stomatology |
| Year | 2012 |
| DOI |
10.1155/2012/987402
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| URL | |
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