SBIR-STTR Award

Submarine periscope and antenna mast assemblies are currently configured with an internal metallic structural member surrounded by a two piece frp fairing. the forward and aft fairing components are mechanically fastened to the internal structure along their edges. this project will investigate the feasibility of designing and fabricating a one piece advanced technology composite structure to replace the existing built-up configuration. the proposed effort will include the following activities: 1. establish applicable design criteria; 2. conduct preliminary design study; 3. examine tooling requirements; and 4. develop program outline and estimate costs for prototype and production fabrication.

Keywords:
composites submarine mast periscope fairing monolithic marine foil structure analy fabrication

Phase I activity of SBIR Topic 89-108 investigated the feasibility, from technical, manufacturing and economic standpoints, of manufacturing Monolithic Composite Periscope Masts, and determined that numerous advantages can be achieved by using current-generation materials and composites technology: Phase II activity described in this proposal will present the Statement of Work and associated cost of finalizing the engineering analysis and design effort for the proposed Monolithic Composite Mast Assembly, the design of necessary tooling, as well as other non-recurring activity required to define the manufacturing processes and Quality Control plan leading to the contemplated fabrication and sea trials, in a subsequent phase of activity, of a prototype full-sized, monolithic composite Periscope Mast Assembly.

Keywords:
submarine mast composites monolithic marine foil graphite resin