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Engineering Aspects and Mathematical Formulation of the Problem of a Computerized Aircraft Structural Analysis System
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Abstract
The need for a comprehensive computing system for aircraft structural analysis is discussed. Suitable criteria for such a system are presented. The Douglas Redundant Force Analysis, a general purpose digital computer method for static stress analysis, is described. Details of the method are presented, including the structure cutter routine for the automatic selection of redundants. Nonlinear and dynamic applications are considered.
The FORMAT system described is a comprehensive computing approach that permits rapid programming by the engineer of matrix and pseudo matrix operations. The system provides a means for developing and extending structural analytical programs and for combining such programs with dynamic, aerodynamic, and thermodynamic programs in the solution of structural problems.
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Citation
Denke, P., "Engineering Aspects and Mathematical Formulation of the Problem of a Computerized Aircraft Structural Analysis System," SAE Technical Paper 650055, 1965, https://doi.org/10.4271/650055.Also In
References
- Strang C. R. “A Computerized Static and Dynamic Aircraft Structural Analysis System - I Historical Background,” presented to SAE International Automotive Engineering Congress and Exposition January 1965 Detroit
- Stone M. “A Computerized Static and Dynamic Aircraft Structural Analysis System - II Use of Computer Programs in Aircraft Design,” presented to SAE International Automotive Engineering Congress and Exposition January 1965 Detroit
- Denke P. H. “A General Digital Computer Analysis of Statically Indeterminate Structures,” Douglas Aircraft Co. Engineering Paper 834 September 1959
- Matlock J. K. “A Computerized Static and Dynamic Aircraft Structural Analysis System - IV Programming the System,” presented to SAE International Automotive Engineering Congress and Exposition January 1965 Detroit
- Denke P. H. “Digital Analysis of Nonlinear Structures by the Force Method,” Douglas Aircraft Co. Engineering Paper 1430 July 1962
- Denke P. H. “A Matric Method of Structural Analysis.” Proceedings of the 2nd U. S. National Congress of Applied Mechanics June 1954
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- Michielson Dijk “Structural Modifications in Redundant Structures.” Journal of the Aeronautical Sciences 20 4 April 1953 286
- Denke P. H. “Nonlinear and Thermal Effects on Elastic Vibrations, Theoretical and Experimental,” October 1960
- Warren D. S. “A Matrix Method for the Analysis of the Buckling of Structural Panels Subjected to Creep Environments,” September 1962
- Warren D. S. Denke P. H. “Matrix Analysis of the Dynamic Behavior of Geometrically Nonlinear Structures,” Douglas Aircraft Co. Paper April 1964
- Christensen R. H. Denke P. H. “Crack Strength and Crack Propagation Characteristics of High Strength Metals,” May 1961