Minimum weight design of structures by the optimality criterion and projection method

1979 ◽  
Author(s):  
N. KHOT ◽  
L. BERKE ◽  
V. VENKAYYA
Keyword(s):  
Projection Method ◽  
Optimality Criterion ◽  
Minimum Weight ◽  
Minimum Weight Design ◽  
Weight Design

Optimality Criterion Techniques Applied to Mechanical Design

1978 ◽  
Vol 100 (2) ◽  
pp. 319-327 ◽  
Author(s):  
M. R. Khan ◽  
W. A. Thornton ◽  
K. D. Willmert
Keyword(s):  
Natural Frequencies ◽  
Optimality Criterion ◽  
Mechanical Design ◽  
Minimum Weight ◽  
Computational Time ◽  
Minimum Weight Design ◽  
Linear Approach ◽  
Nonlinear Mathematical Programming ◽  
Programming Techniques ◽  
Weight Design

Presented are two optimality criterion techniques for the minimum weight design of mechanical and structural systems subject to limitations on stresses and natural frequencies. The results, based on their application to several examples, are compared with those obtained by other researchers and with standard nonlinear mathematical programming techniques, as well as with a special linear approach. It is shown in all cases that the optimality criterion methods are capable of locating the optimal design and are far superior to other methods in terms of computational time.

Minimum Weight Design of Ring Stiffened Cylinders Under External Pressure

1961 ◽  
Vol 5 (03) ◽  
pp. 44-49 ◽  
Author(s):  
George Gerard
Keyword(s):  
Yield Strength ◽  
Minimum Weight ◽  
External Pressure ◽  
Compressive Yield Strength ◽  
Minimum Weight Design ◽  
Weight Design

Minimum weight analyses for unstiffened and ring-stiffened cylinders under external pressure are presented for designs based on stability and compressive yield-strength considerations. The results for both types of cylinders are compared in terms of a common set of parameters to establish the efficiency of the stiffening system. The results are then compared on a somewhat different basis to establish the relative efficiencies of various classes of materials. Finally, certain conclusions are drawn of particular pertinence to deep submersibles.

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