文档介绍：介绍
B .Engine and propeller parameter 柴油机和螺旋桨参数
C. Definitions and assumptions 定义与假设
D. Input data 输出数据
E. Bearing reaction influence 轴支撑反力影响
F. Jack correction factors千斤顶无轴承无距离修正负荷
G. Propeller 50% %浸没
G1 .Max. Shear forces, deflections, slope and bending at each shaft section ....……轴每节最大剪切力,挠度,坡度和弯曲
G2. Optimum alignment results..........·······················································……
G3. Diagram of moment&shear force at the end engine output end................……
G4. Shaft bending moment plot................................................................……
G5. Shaft stress plot...............................................................................……
A .Introduction
The alignment calculation for shaft system has been carried out by using the Nauticus
Machinery Calculation Package from Shaft Alignment tool DNV software.
The alignment program uses the transfer matrix method for solving the equations. All
state quantities are related to the X-axis that coincides with the shaft center line and
points forward. The shaft line is modeled as elements with different characteristics. The
distribution of mass is continuous in shaft and flanges, and concentrated (discrete) in
the other element types. The system is considered to have fixed positions at the bearings
B. Engine and propeller parameter
Engine type YMD B&W 6S35MC
Nominal power 4440KW
Nominal speed 173rpm
Mass of turning wheel 1845kg
Propeller parameter
Propeller diameter m
Mass of Propeller (dry)
intermediate shaft 0315 X 4400
Propeller shaft 0360 X 6660.
C. Definitions and assumptions
Reference line Aft stern‐tube bearing is taken as being supported at one fourth of bearing length from the aft end static all other bearings at the mid point Bearing offsets Positive when above the reference line
Bearing stiffness Bearing are considered to be infinitely stiff.
Bearing load influence Show the change bear