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http://dx.doi.org/10.3795/KSME-A.2012.36.8.897

Barrel Rifling Shape Optimization by Using Design of Experiment Approach  

Kang, Dae-Oh (Institute of Design Optimization Inc.)
Woo, Yoon-Hwan (Dept. of Mechanical Systems Engineering, Hansung Univ.)
Cha, Ki-Up (Agency of Defense Development)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.8, 2012 , pp. 897-904 More about this Journal
Abstract
The rifling design problem has continuous-type shape variables and an integral number of riflings. In addition, it requires considerable time for analysis because its behavior should be described by a nonlinear finite element model (FEM). Therefore, this study presents an efficient design process for rifling based on a design of experiment (DOE) approach. First, Bose's orthogonal array is used to represent 25 runs for four design variables including three shape variables and one integer variable. Then, nonlinear FE analyses are performed. Next, to minimize the bullet resistance without affecting the bullet velocity and bullet rotational angle immediately before a bullet leaves the gun barrel, a what-if design is performed. In the proposed what-if design, a functional including the design objective and constraints is constructed and effect analysis is performed by using the functional. It is found that the new design obtained from the what-if design shows better results than the current one.
Keywords
Shape Optimization; DOE; Equivalent functional; What-if Study;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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