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首页> 美国政府科技报告 >Determination of Damping Coefficients of Swath Catamaran Using Thin Ship Theory.
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Determination of Damping Coefficients of Swath Catamaran Using Thin Ship Theory.

机译：用薄船理论确定刈割双体船的阻尼系数。

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This report deals with the problem of pitch and heave damping of a catamaran with small-waterplane-area-twin-hull (SWATH) configuration. A computer program has been developed to compute the pitch and heave damping coefficients of SWATH including forward speed effects based on the thin ship theory developed by Newman (1959). Calculations of the damping coefficients for several Froude numbers are compared with Lee's (1974) experiments. The results show that damping is greatly affected by the Brard parameter, (omega)(V)/g, when the forward speed effects are considered. The effect of hull distance variation on dampling is also considered. The results show that damping is an oscillatory function of hull distance. The oscillatory phenomenon dies out as the hull distance increases, and also as the Brard parameter increases. (Author)

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