자동 미분의 공학 계산 적용 연구Study on the Applications of Automatic Differentiation in Engineering Computation

Automatic Differentiation(AD) is a tool for generating sensitivities, such as gradient or Jacobian, automatically. AD tools provide mathematically exact sensitivities for the given source code. In this paper applications of automatic differentiation are studied. Derivative codes are generated with AD tools for structural analysis code and flow analysis code. How to apply AD tools is explained and the accuracy of sensitivities is compared with the finite difference. Sensitivities of generated derivative code accord well with finite difference, but the calculation time of derivative code increases. It was found that the calculation time can be decreased by additional modification of derivative code.
Publisher
한국항공우주학회
Issue Date
2008-07
Language
KOR
Citation

한국항공우주학회지, v.36, no.7, pp.634 - 641

ISSN
1225-1348
URI
http://hdl.handle.net/10203/9606
Appears in Collection
AE-Journal Papers(저널논문)
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