Taking into account the multidimensionality and multidirectional rotation of the shaft elements in the calculation of stationary vibration

被引:0
|
作者
Gezha, Daria V. [1 ]
Melkonian, Armen L. [2 ]
Nikolaev, Dmitri A. [1 ]
机构
[1] St Petersburg State Marine Tech Univ, 3 Lotsmanskaya str, St Petersburg 190008, Russia
[2] St Petersburg State Marine Tech Univ, Theoret Mech & Mat Strength Dept, 3 Lotsmanskaya str, St Petersburg 190121, Russia
来源
关键词
vibration; shaft line; quasi-one-dimensional model; inertia-stiffness characteristics; partial responses; vibration parameters; propeller rotation;
D O I
10.37220/MIT.2023.62.4.042
中图分类号
U6 [水路运输]; P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
An algorithm for calculating vibration parameters has been developed on the basis of a previously created mathematical model of the task in which the influence of additional factors was taken into account, which is carried out when calculating the vibration parameters of a quasi-one-dimensional model. On the basis of a discrete version of the method of partial responses, an algorithm for calculating vibration parameters was developed taking into account the rotation of any element of the shaft in any direction and at any angular velocity. A corresponding program for calculating vibration parameters (amplitude values of displacements, internal forces and support reactions) has been developed. A series of calculations were performed that allowed analyzing the effect of rotation of the shaft elements (taking into account different angular velocities) on natural frequencies, as well as on the amplitude of the transverse displacement, at a characteristic point. A series of calculations were performed that allowed us to estimate the influence of the direction of rotation on the vibration parameters of the shaft line.
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页码:37 / 42
页数:6
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