船舶操纵水动力导数的灵敏度分析通常用于评价水动力导数的变化对船舶操纵运动的影响。从船舶操纵运动数学模型出发，提出了一种水动力导数灵敏度分析的直接方法。以Mariner船为研究对象，通过15°/15° Z形仿真试验，对Abkowitz模型中包含的40个粘性类水动力导数进行了灵敏度分析，并基于分析结果对模型进行了简化。通过比较简化模型及原模型的20°/20°Z形仿真试验结果，验证了所提出的水动力导数灵敏度分析方法的有效性。%The sensitivity analysis of ship hydrodynamic derivatives was used to evaluate the influence of the varia⁃tion in hydrodynamic derivatives on ship maneuvering motion. A direct method for analyzing the sensitivity of hydro⁃dynamic derivatives was proposed according to the mathematical model. Sensitivity of 40 viscous derivatives in Abkowitz model was calculated via 15°/15°zigzag test simulated with Mariner class vessel, and the maneuvering model was simplified based on the sensitivity analysis. By comparing the simulation results of 20°/20°zigzag test ob⁃tained by the simplified model and the original model, the proposed method for sensitivity analysis of hydrodynamic derivatives was validated.
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