Portable Software For Numerically Controlled Machining
P-APT, Portable APT, is revised version of APT written to conform to FORTRAN 77 standard. Machine-dependent code replaced or isolated and documented.
Poland, J.↗
Engineering topics
Premack, T.
Publications and source records attributed to Premack, T..
A rule based computer aided design system
A Computer Aided Design (CAD) system is presented which supports the iterative process of design, the dimensional continuity between mating parts, and the hierarchical structure of the parts in their assembled configuration. Prolog, an interactive logic programming language, is used to represent and interpret the data base. The solid geometry representing the parts is defined in parameterized form using the swept volume method. The system is demonstrated with a design of a spring piston.
Premack, T.↗
Design and implementation of a compliant robot with force feedback and strategy planning software
Force-feedback robotics techniques are being developed for automated precision assembly and servicing of NASA space flight equipment. Design and implementation of a prototype robot which provides compliance and monitors forces is in progress. Computer software to specify assembly steps and makes force feedback adjustments during assembly are coded and tested for three generically different precision mating problems. A model program demonstrates that a suitably autonomous robot can plan its own strategy.
Premack, T.↗