propellor

Vibration characteristic analysis of a propellor blade

某型螺旋桨桨叶振动特性计算分析

These analysis results are references for both new type of structure design and the research on characters of fluid dynamics of propellor .

分析结果可供变螺距螺旋桨的新型结构设计和流体动力特性研究参考。

An effective way of improving propellor efficiency for old ship

提高旧船推进效率的有效方法

Propellor to develop domestic CNC machine tools

发展国产数控机床的推进器&建立供需企业之间长效机制

The stress distributions and their quantities are analyzed for several blades of varied thickness section in propellor of varied thread distance with the composite experimental techniques in both stress coat and strain gage .

采用应力涂层和应变电测组合试验技术，分析几种类型变螺距螺旋桨的变厚度截面桨叶的应力分布规律与量值。

Equipped to float with impermeable canvas skirts , these tanks were to propel themselves to the beach with an ad hoc propellor and then resume normal operation .

这些坦克车下截设有不透水帆布围裙，以便漂浮，并特设螺旋桨，以便向海滩推进，登陆之后即可照正常操作。