Parameter Identification Of A Model Helicopter Blade Using
Measurement Data
Author(s)
B. Hong, L. P. Pey & T. Y. Soh
Abstract
Parameter identification of a model helicopter
blade using measurement data
B. Hong, L. P. Pey & T. Y. Soh
DSO National Laboratories, Singapore
Abstract
Parameter identification is the process of constructing the mathematical model of
a dynamic system based on measured dynamic responses. A non-classical
search method namely genetic algorithm (GA) is employed in this study, which
has several advantages over classical system identification techniques.
Nevertheless, direct application of GA does not necessarily work well,
particularly with regards to computational efficiency in fine-tuning when the
solution approaches the optimal value. Thus, a local search (LS) method is
introduced into the GA approach to improve this capability. Numerical example
of a cantilever beam is presented to show the efficiency of the combined GA and
LS method (GA-LS). The FE model of the cantilever beam is established with
10 beam elements. In this example, only the element properties associated with
flapping motion ar
Keywords
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