潜器模型水下自航试验分析方法探讨

文章在模型自航试验原理的基础上,讨论了潜器强迫自航试验自航点的确定问题,提出了通过强制力来修正兴波干扰影响的试验方法;由于强制力的计算和阻力附加值有很大的关系,当阻力附加值难以被准确确定时,建议在试验中补充全负荷自航试验曲线,可以弥补强迫自航试验范围狭窄的缺陷;同时文中分析得出了自航因子随阻力补贴值的变化规律;进而在以上两种试验方法的基础上,探讨了一种能够避免兴波干扰的试验方法,采用这种方法得到的试验数据离散程度更小,有利于提高试验精度。

A discussion on the self propulsion model test method for underwater vessel

Basing on the principle of the self propulsion model test, the calculation of the underwater self propulsion points in the forced self propulsion model tests was discussed.Considering the relationship between the constraining force with the resistance allowance,it is suggested to carry out an after-hull interaction curve to make up the narrow range of the forced self propulsion model tests when the resistance allowance is difficult to be exactly confirmed.And the relationship between self propulsion factors with the resistance allowance was also found. Furthermore, a new method was discussed in this paper by combining the two self propulsion manners mentioned above. By the new method test data is less scattered, which is helpful to enhance the model test precision.