Study on Vibration Characteristics of Marine Steam Turbine Rotor Shaft Coupling With Disk

被引：0
|
作者：
Sun Y. [1 ]
Li Z. [1 ]
机构：
[1] Naval Academy of Armamant, Beijing
来源：
Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | 2017年 / 37卷 / 02期
关键词：
Disk element; Finite element model; Rotor shaft coupling with disk; Vibration characteristics;
D O I：
10.16450/j.cnki.issn.1004-6801.2017.02.017
中图分类号：
学科分类号：
摘要：
Base on small aspect ratio modeling theory, the finite element of rotor shaft coupling with disk was established, and the vibration characteristics of marine steam turbine rotor were analyzed with different modeling methods such as oblique cutting way and disk unit. Then, the significant influences of different modeling methods on the vibration characteristics of the rotor system were studied. The additional modes of rotor bearing system generated by disk unit represented as coupling vibration mode between disk and rotor shaft. The calculation method based on disk-unit model accurately described the vibration characteristics of the rotor shaft coupling with disk. For thicker disk, the disk had less effect on the rotor coupling vibration. The oblique cutting model commonly used in engineering generated additional stiffness and caused larger error in the solving process. This kind of error gradually reduced with the decreasing of the disk thickness. © 2017, Editorial Department of JVMD. All right reserved.
引用
下载
收藏
页码：314 / 319
页数：5
相关论文
共 10 条
  • [1] Meng G., Retrospect and prospect to the research on rotordynamics, Journal of Vibration Engineering, 15, 1, pp. 1-9, (2002)
  • [2] Newmark N.M., A Method of computation for structural dynamics, Journal of Engineering Mechanics Division, 85, 1, pp. 67-94, (1959)
  • [3] Muthy V.R., Dynamic characteristic of rotor blades, Journal o f Sound and Vibration, 49, 4, pp. 483-500, (1978)
  • [4] Shang D., Li H., Anlaysis and emulation of coupled vibration of bladed disc and shaft by means of transfer matrix, Journal of East China Shipbuilding Institute: Natural Science Edition, 16, 6, pp. 37-42, (2002)
  • [5] Soares C.A.M., Petyt M., Salama A.M., Finite element analysis of bladed disks, structural dynamic aspects of bladed disk assemblies, American Society of Mechianical Engineers Winter Annual Meeting, pp. 73-91, (1976)
  • [6] Soares C.A.M., Petyt M., Finite element dynamic analysis of practical bladed discs, Journal of Sound and Vibration, 61, 4, pp. 561-570, (1978)
  • [7] Michimura S., Nagamatsu A., Ikevchi T., Et al., Vibration analysis on bladed disk assemblies of axial-flow turbines, Bulletin of the Japan Society of Mechanical Engineering, 24, 197, pp. 1988-1993, (1981)
  • [8] Zhang W., Chen Y., Vibration anlaysis of the whole rotor with blade-disk and shaft, Journal of Aerospace Power, 9, 2, pp. 120-124, (1994)
  • [9] Chun S.B., Lee C.W., Vibration Analysis of shaft-bladed disk system by using substructure synthesis and assumed modes method, Journal of Sound and Vibration, 189, 5, pp. 587-608, (1996)
  • [10] Genta G., Dynamics of Rotating Systems, pp. 170-173, (2005)
1