Computer vs Model

Report Number: RTD-TDR-63-4197 Part I, p. 301
Author(s): Wasserman, Lee S., Mykytow, Walter J.
Corporate Author(s): Dynamic Devices, Incorporated, AF Flight Dynamics Laboratory
Laboratory: Air Force Flight Dynamics Laboratory
Date of Publication: 1964-03
Pages: 32
DoD Task:

Abstract:
Problems of airplane and space vehicles which must be analyzed thoroughly from from the standpoint of dynamics are summarized. Tools available for the solution of such problems include the digital and analog electronic computers and mechanical analogs such as dynamically similar models. Since computer techniques are largely based on simplified mathematical representations of the pertinent phenomena an attempt is made in this paper to evaluate such simplifications for some of the modern theoretical procedures. Practical difficulties in the fabrication of dynamically similar models, limitations in the availability of test environments and basic effects of scale on dynamic phenomena require the use of certain assumptions in the design, fabrication and testing of dynamically similar models. The assumptions required in advanced dynamically similar model techniques are listed for the information of dynamics engineers and are compared with those listed above for analytical procedures. Recommended procedures involving the use of both models and analytical techniques are outlined for the solution of specific problems in dynamics for airplane and space vehicles.

Provenance: Bombardier/Aero