Summary: | 碩士 === 國立成功大學 === 造船工程學系 === 86 === Alternative acoustic source methods were introduced in the
earlier studies.It proves that source methods give good
estimations. However a question arises:"Suppose there are some
errors in the nearfield measurement on the boundary, what will
be the errors in the estimation in the farfield by these source
methods?" A numerical simulation is performed by setting
possible errors in the nearfield measurement, then the errors in
the farfield are evaluated. The results indicate that the source
methods give fair estimations in the farfield, even with
possible errors in the nearfield measurement. Besides, in order
to capture analytical characteristics of source methods,we will
discuss the influence parameters of similar source method(SSM)
in thearticle.
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