Methods of forming flexible structures for a rocket motor assembly
AssigneeNorthrop Grumman Innovation Systems, Inc.
InventorsHimansu M. Gajiwala, Steven B. Hall
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Abstract
A method of forming a flexible structure for a rocket motor assembly comprises forming a polysiloxane composition comprising at least two different silicone materials. A preliminary structure is formed from the polysiloxane composition. The preliminary structure is cured to crosslink at least a portion of different polysiloxane chains of the preliminary structure. A flexible structure for a rocket motor assembly, a flexible assembly for a rocket motor assembly, a moveable thrust nozzle assembly for a rocket motor assembly, and a rocket motor assembly are also described.
Claims16
A method of forming a flexible annular seal for a rocket motor assembly from a polysiloxane composition comprising silicone materials, the method comprising:
- selecting a first silicone material having a Shore A hardness within a range of from 13 to 17;
- selecting a second silicone material having a Shore A hardness within a range of from 20 to 24;
- combining the first silicone material and the second silicone material to form a homogenous polysiloxane composition including a uniform dispersion of the first silicone material and the second silicone material;
- forming a preliminary structure having a annular shape from the homogenous polysiloxane composition;
- and
- curing the preliminary structure to crosslink at least a portion of different polysiloxane chains of the preliminary structure and form the preliminary structure having a shear modulus less than about 26 psi.
Dependencies are inferred from the claim text.