CALCULATION AND ANALYSIS OF INHERENT FREQUENCY FOR HIGH-SPEED DRY GAS SEAL TEST BENCH ROTOR

DING XueXing; WU YuanYuan; ZHANG WeiZheng; ZHAI Xiao; LU JunJie

doi:10.16579/j.issn.1001.9669.2017.04.003

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CALCULATION AND ANALYSIS OF INHERENT FREQUENCY FOR HIGH-SPEED DRY GAS SEAL TEST BENCH ROTOR

更新时间：2022-09-22

- CALCULATION AND ANALYSIS OF INHERENT FREQUENCY FOR HIGH-SPEED DRY GAS SEAL TEST BENCH ROTOR
- Journal of Mechanical Strength Vol. 39, Issue 4, Pages: 761-765(2017)
- 作者机构：
  
  1. 兰州理工大学石油化工学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2017.04.003
  CLC：
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DING XueXing, WU YuanYuan, ZHANG WeiZheng, et al. CALCULATION AND ANALYSIS OF INHERENT FREQUENCY FOR HIGH-SPEED DRY GAS SEAL TEST BENCH ROTOR. [J]. 39(4):761-765(2017)
DOI：

DING XueXing, WU YuanYuan, ZHANG WeiZheng, et al. CALCULATION AND ANALYSIS OF INHERENT FREQUENCY FOR HIGH-SPEED DRY GAS SEAL TEST BENCH ROTOR. [J]. 39(4):761-765(2017) DOI： 10.16579/j.issn.1001.9669.2017.04.003.

摘要

为了避免所设计的干气密封高转速试验台转子在高转速运行过程中发生共振现象,应用传递矩阵法计算其固有频率,得到该转子系统在干气密封动静环质量为33.78 kg时,其固有频率为14 044.586 r/min。并用有限元方法分析该转子系统在其固有频率附近运行时的模态,得到四阶模态下的振型图。对比分析两种方法所求解的结果可知,虽然传递矩阵法和有限元方法简化的模型不相同,但结果都表明该转子系统所设计的转速能够满足要求,说明干气密封高转速试验台转子设计的合理性。

Abstract

In order to avoid the design of the rotor of the dry gas seal high speed test stand occur resonance phenomenon during high speed running,the transfer matrix method was applicated to calculate the natural frequency.Then it obtains that its natural frequency is 14044.586r/min when the dry gas seal static and ring `s quality is 33.78 kg in rotor system,and using the finite element method analysis the modes of the rotor system when it is operating in the vicinity of its natural frequency,then it will get the modal figure with four modal value.Comparative and analysis the results of the two methods,though simplified model are not the same,the results are similar.And the design of speed can meet the requirements,so it can describe the design of the rotor system is reasonable.

关键词

干气密封高转速固有频率传递矩阵有限元

Keywords

Dry gas sealHigh speedNatural frequencyTransfer matrixFinite element method

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