复合材料螺旋桨纤维铺层对强度影响研究

为实现铺层角度、顺序对桨叶强度影响的准确预报,本文首先采用有限元计算软件Abaqus建立复合材料螺旋桨仿真计算方法,并通过静强度试验对仿真计算方法进行了佐证;然后加入Tsai-Wu强度准则作为桨叶强度的评价指标。通过对30种铺层方案进行仿真计算,阐明铺层角度、顺序对桨叶强度的影响规律,为研究纤维铺层对桨叶强度的影响提供一定的参考。

Research on effects of shafting deflection factor for lareral vibration characteristics

Research the problem of propulsion shafting lareral vibration response problems caused by angle misalignment in uniform motion process. Considering as the basis of shaft angle misalignment and shaft eccentricity factors, establish the angle misalignment propulsion shafting lareral vibration dynamic model, use the numerical algorithm for solving the equation, and analysis the form of shafting vibration response and the effect of misalignment angle quantitymass ratio of active shaft and dimensionless shaft speed on the lareral vibration characteristics of the shafting with the angle misalignment in uniform process. The results indicate that shafting with angle misalignment can the dynamic behavior. The research work makes sense in providing a theoretical basis for warships to improve the acoustic performance from reducing shafting vibration.