%A"Funaki, T"
%A"Hayashi, S [Osaka University, Osaka (Japan). Faculty of engineering]"
%D1996
%I;
%J
%K42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES, 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS, DATA, MATRICES, MESH GENERATION, SHIPS, MECHANICAL STRUCTURES, MECHANICAL VIBRATIONS, PARAMETRIC ANALYSIS, ACCURACY, ROTATION, VECTORS
%PMedium: ED; Size: pp. 263-269
%TStudy on the effect of measurement points upon reduced added mass matrix; Shukusho fuka shitsuryo matrix ni okeru kansokuten no eikyo ni kansuru kenkyu
%XIt is known in estimating vibration characteristics of a ship that fluid range affects largely a structure. A parameter calculation was performed on node vibration in the vertical direction of a rotating elliptic body such as a ship to investigate the effect of an arranging method of the measurement points upon the result of the analysis. As a result, it is thought that equivalent interval arrangement of 21 measurement points would be sufficient in a lower order side mode of vibrations with less than four nodes. An analysis of calculations performed by arranging measurement points in experimental measurement points revealed that analysis accuracy would not increase even if the number of measurement points is increased if it is done so without considering rotation vector. An experiment was carried out with the number of measurement points increased to verify the above fact, with which the analysis was verified correct. Therefore, as has been forecasted in the previous report, the cause for the analysis accuracy deterioration in a high order mode may be estimated as the effect of the rotation vector. However, since it is not the situation that an analysis considering the rotation vector has been conducted, it cannot be concluded yet that the effect of the rotation vector is the sole cause. 4 refs., 14 figs., 7 tabs.
%0Miscellaneous
Japan https://doi.org/ Other: ON: DE97721531; TRN: 96:913854 NEDO Japanese