Development Environment

AGPS is a modeling platform and integrated development environment built around a Surface Geometry System. Its greatest attribute is its flexibility to perform both automated intelligent tasks based on engineering know-how and providing the user/programmer control to investigate novel concepts.

AGPS development environment provides:

1. Modeling Platform - a surface geometry system focusing on the engineering analysis needs of technical staffs such as aerodynamicists.
2. Data Structure - A catalogue of geometric and non-geometric object types.
3. Commands - are used to interrogate and modify the data structure. AGPS commands may be used to create, modify, or extract objects from existing objects.
4. System Directives - provide the macro capability for AGPS commands. They provide high-level constructs; namely do-loops, if-then-else constructs, and system control functions for the command language.
5. Graphical User Objectives (GADGETS) - forms, boxes, tables, grids, buttons, checkboxes, etc... are available for interface creation.

Surface Quality package

Does a surface have the shape that you want or does it have unwanted wiggles or surfaces that do not abut properly?

All surfaces from AGPS or CATIA should be checked for quality before any paneling or surface grids are generated. This package provides tools for doing this.

Post Processing Tools

AGPS contains many visual and post-processing commands

Panel Editor

The Panel Editor is designed to provide interrogation and utility help for structured panels/grids.

Standard Suite of I/O Options

• A230
• CGNS
• IGES
• STEP
• STL
• PLOT3D
• TecPlot
• GGP
• Ugrid

Tranair++ Business Jet Package

A special Tranair pre-processing package has been developed that will enable business jet aerodynamicists to obtain the same benifits enjoyed by commercial transport aerodynamicists. Specifically, the Tranair Busiess Jet Package (TBJP) will automate the paneling and input preparation for 95% of the aircraft types in the business jet indusstry.

The benefits of using this package include:

• Rapid assessment of attached transonic flow conditions.
• Access to the multi-point optimization routines in Tranair++. These routines hvave proven capable of developing break through performance in the commercial aviation sector.

Technical Description (General)

• Any nunmber of generally horizontal 'wing' surfaces including struts, body-mounted horizontal tail and canards.
• One body, symmetric on centerline.
• One vertical tail, symmetric on centerline.
• Body, Mid- and T-Tail horizontal tail mounting.
• Wing or Body mounted powered engines.
• Required surface orientation: None. (Pre-processed automatically)
• Each major element (body, wing, etc.) should be input as a single surface. AGPS utilities (AGPS - CUTnLOFT) are available that will allow rapid and automated surface processing from multiple CAD surfaces to the single surface.
• Grid controls: Defaults may be overridden when grid controls are specified.

Geometry Preparation Tools

These tools allow rapid integration of arbitrary CAD surfaces. Typical geometry preparation is <5 minutes per component. The method takes a series of structured cuts and integrates resulting curves. The result is typically a single surface for each wing, body or nacelle.

Automated Paneling Package (Transport Aircraft)

A procedure has been developed with AGPS that automatically panels a wing/body, wing/body/horizontal, or wing/body/horizontal/verical configuration with wakes, depending on which components are present. It provides quick extraction of ordered sets of points suitable for panel codes such as A502 and TRANAIR. The speed of execution allows the user to rapidly run through an initial case, visually check the networks, modify the spacing, and re-run the command file if desired.