"" development of discrete adjoint capability for rotorcraft comprehensive code under this task order the contractor shall perform six major tasks: (1) demonstrate the accuracy of the baseline…

The Langley Research Center issued a delivery order with a $1,025,161 ceiling to National Institute of Aerospace Associates on October 1, 2015, on a cost-plus-fixed-fee basis with no set-aside used. The work develops a discrete adjoint capability for the rotorcraft comprehensive code through six tasks: demonstrating the baseline DYMORE/FUN3D multidisciplinary analysis accuracy; developing a sensitivity analysis capability for DYMORE and extending the DYMORE/FUN3D interface to a coupled sensitivity capability; designing a generic structural solver abstraction layer (SSAL) to isolate DYMORE and TACS from a specific structural solver; implementing SSAL-TACS for the TACS FEM structural solver; coupling TACS with DYMORE and demonstrating the DYMORE/TACS/FUN3D procedure; and formulating, implementing, verifying, and demonstrating a discretely consistent adjoint-based sensitivity analysis procedure on that coupled procedure. Place of performance is Hampton, VA 23666, and the order's ultimate completion date is September 30, 2018. Service Contract Inventory reporting shows $143 thousand invoiced in FY2018, with the awardee in a prime role and three subcontractors reported that year. FY2018 inventory is civilian-only, and it is the only fiscal year reported, so no trend is available.

"" development of discrete adjoint capability for rotorcraft comprehensive code under this task order the contractor shall perform six major tasks: (1) demonstrate the accuracy of the baseline dymore/FUN3D multidisciplinary analysis procedure, (2) develop a sensitivity analysis capability for dymore and extend existing dymore/FUN3D interface to achieve a sensitivity analysis capability for the coupled dymore/FUN3D toolset, (3) design a generic structural solver abstraction layer (SSAL) to isolate dymore and TACS from the implementation details of a specific structural solver, (4) develop a specific implementation of the structural solver abstraction layer for the TACS FEM structural solver (SSAL-TACS), (5) couple the TACS structural solver with dymore using the SSAL-TACS abstraction layer and demonstrate the accuracy of the dymore/TACS/FUN3D multidisciplinary analysis procedure, and (6) formulate, implement, verify, and demonstrate a discretely consistent adjoint-based sensitivity analysis procedure based on the dymore/TACS/FUN3D multidisciplinary analysis procedure.