小水线面双体船是指一种水线面积小，且由两个潜水体和一个水上箱体，中间有两个流线型支柱连接起来的船舶。该船型最大的特点是耐波性好，尤其是在高航速、高波浪时，这一特点更明显。
小水线面双体船因其优异的耐波性能而成为当前重要的高性能船型之一。
Nowadays SWATH ship becomes an important ship type of high performance due to it's excellent seakeeping feature.
本文提供了小水线面双体船(SWATH)结构载荷的解析方法以及用于初步设计的简捷算法经验公式。
This paper present the analytical method for structural load calculation for SWATH ship, and the short cut method with empirical formula for preliminary design.
但小水线面双体船的纵向运动和高速情况下的垂荡运动直接影响其在海上的运动姿态，进而影响船的运动稳定性。
But in the SWATH ship longitudinal motion and the high speed situation hangs swings the movement to affect it directly in the Marine movement posture, then affects the ship the movement stability.
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