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AuthorYuHung Hsu, Kurt S. Anderson
TitleLow Operational Order Analytic Sensitivity Analysis for Tree-type Multibody Dynamic Systems
Year2000
JournalAIAA Journal of Guidance, Control and Dynamics
AbstractComputing of rst-order sensitivity information is crucial for many gradient-base optimization strategies where the algorithms employed plays a key role on determining the computational e∆ciency of an optimization process. For complex multibody system optimization problems, the optimization and simulation methodologies used along with their numerical accuracy, stability, and e∆ciency in performing the rst-order sensitivity analysis has become an important subject in properly managing these design problems under time and computational resources constraints. This paper presents an algorithm which is able to determine the state derivatives in a fully recursive manner so to signi cantly reduce the cost of determining analytic rst-order sensitivity information for large scale tree-type dynamic systems. Qualitative and quantitative validation on the operational requirement of the present method are made through analytical means and empirical studies.
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