Interactive Optimization Based, Computer Graphics Software Package. Phase 2. Users Manual.

摘要

This report documents the work that was completed to develop the software tools and geometric data base that will help Air Force Design Engineers take aircraft and missiles from concept to test specimen. Navgraph is a geometric modeling program that allows the user to define complex, convex and non-convex geometric solid objects for use in the various modules developed. A summary of the capabilities are given here: NAVGRAPH can be used to create geometric models of aircraft, weapons, submunitions, pylons, racks, etc. to whatever detail is necessary for the problem being studied. NAVGRAPH can be used to recall any geometric model(s) from the existing data base (via DBMERGE) to define the desired complex model to whatever detail is necessary. The existing data base consists of the models developed under this contract, mainly, an F-15 aircraft, fuel tank, racks, rails, bombs, missiles, and submunitions. CALIPER can be used to study physical fit compatibility. For example, CALIPER can calculate the separation distance between a missile fin and an aircraft wing or detect and calculate the interference distance and direction of internal components with respect to the interior of a missile body. The information derived here can be used to translate the interfering object and remove the interference. (kr)