通过与静水中线性横摇运动的比较，分析非线性阻尼力矩和非线性复原力矩对船舶横摇运动的影响。
In comparison with linear rolling in still water, the effects of nonlinear damping and righting moment on ship's rolling motions were analyzed.
首先，本文讨论船舶非线性横摇运动中非线性阻尼力矩和非线性复原力矩的数学表达形式，并建立船舶在波浪中的非线性横摇运动方程。
Firstly, mathematical expressions of nonlinear damping and nonlinear righting moment were discussed, and the equations for nonlinear rolling motions in waves were established.
首先，本文讨论船舶非线性横摇运动中非线性阻尼力矩和非线性复原力矩的数学表达形式，并建立船舶在静水中和波浪中的非线性横摇运动方程。
Firstly, mathematical expressions of nonlinear damping and nonlinear righting moment were discussed, and the equations for nonlinear rolling motions in still water and in waves were established.
该试验台架能够模拟船舶的横摇运动和横荡运动， 试验台架的转动惯量、阻尼力矩和恢复力矩可调。
The platform can analog rolling and swaying motion of ships. the moment of inertia, damping and restoring force can be adjusted.
对于同时具有非线性阻尼力矩和非线性回复力矩的情形，探讨了利用横摇自由衰减试验来测量横摇阻尼的方法。
The method of rolling decay model test for determing damping coefficient was discussed for the case of combined non-linearities both in terms of damping and restoring moment.
其中模拟横摇力矩的伺服系统采用齿轮齿条摆动液压油缸，并配有扭矩传感器，试验台架的转动惯量、阻尼力矩和恢复力矩均可调。
In which the rolling moment system adopts gear-rack swing hydraulic-pressure oil VAT with torque sensor, the moment of inertia, damp and comeback can be adjusted.
其中模拟横摇力矩的伺服系统采用齿轮齿条摆动液压油缸，并配有扭矩传感器，试验台架的转动惯量、阻尼力矩和恢复力矩均可调。
In which the rolling moment system adopts gear-rack swing hydraulic-pressure oil VAT with torque sensor, the moment of inertia, damp and comeback can be adjusted.
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