Advanced Dynamic Model Development of Dry Gas Seal

Badykov, Renat R.; Фалалеев, С. В.

doi:10.1016/j.proeng.2017.02.331

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…e response is used to analyze system stability and determine system leakage. Varney and Green [6], Songtao et al [7], and Badykov and Falaleev [8], respectively, used the pressure caused by the change of the rotating shaft speed, the stationary unbalanced force of the stationary ring caused by the pressure difference between the inside and outside of the sealed cavity, and the speed step as the excitation, and calculated the stationary ring time. e response within the domain is used to analyze the follow-up of the dynamic and stationary ring and to acquire system leakage.…”

Section: Introductionmentioning

confidence: 99%

Frequency-Domain-Based Nonlinear Response Analysis of Stationary Ring Displacement of Noncontact Mechanical Seal

Sun

Chen

et al. 2019

Shock and Vibration

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Dynamic characteristics affect the operational reliability of noncontacting mechanical seals, which involves the complex relationship between the system of noncontact mechanical seals, excitation, and response. Hence, it is one of the hot topics of current research. However, domestic and foreign scholars mainly calculate the response in the time domain by establishing a linear dynamic model so that the response results can be used for system stability and tracking analysis. In this study, according to the harmonic excitation, the stationary ring’s output response was expressed via the famous Volterra series and solved with a new method, which can be used to analyze the frequency response and to calculate the displacement response of the stationary ring with single and double harmonic excitation. Based on the analysis of the response results, the parameter (stationary ring mass, axial damping, stiffness, etc.) selection scheme of noncontact mechanical seals at high and low frequencies was obtained.

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Section: Introductionmentioning

confidence: 99%