Papers by Keyword: Optimal Interpolation

Abstract: A sequential assimilation method is applied to improve the accuracy of wave simulations in the South China Sea. Typhoon Nesat was chosen to be used for the numerical experiment. The assimilation is based on Optimal Interpolation(OI) which can minimize the Root-Mean-Square error in the analysis. Using the method of OI, wave height and mean period data observed by three buoys have been assimilated into the third generation ocean wave model(SWAN). The results show that the assimilation can correct the difference between the wave model and observations, and the result of significant wave height is superior to that of mean period.

Abstract: This paper proposes an optimal interpolation approach to generate cutter paths in the form of polar coordinate for machining noncircular contours. The cutter path obtained with the approach consists of a series of Archimedes’ spiral segments and the number of segments is the fewest under the condition that the interpolation error completely satisfies the specified limit value. It can be also evidenced that the profile error of the machined contour due to the cutter path is perfectly controlled within the specified interpolation accuracy limit. The result of applying the approach to the contour machining of a disc cam sufficiently illustrates the effectiveness of the proposed approach.