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On the Analysis of Dynamic Characteristics of Pipe Supporting Hydraulic Snubber in Electric Power Plant with State-space Model and Impulse Testing  

Lee, Jae-Cheon (Faculty of Mech. & Automotive Engineering. Keimyung University)
Im, Mun-Hyeok (Faculty of Mech. & Automotive Engineering. Keimyung University)
Hwang, Tae-Yeong (Indst Tech. Dept., KIMM)
Publication Information
Journal of the Korean Society for Precision Engineering / v.19, no.10, 2002 , pp. 130-138 More about this Journal
Abstract
This paper presents the modeling and analysis of dynamic characteristics of hydraulic snubber in electric power plant. The nonlinear state-space model of 14th order to describe the dynamics of the snubber was established by Simulink. The simulation results show that the hydraulic snubber reacts as like the conventional shock absorbers against the high pulse shock load. The snubber also shows the peculiar characteristics to the small step load, which temporarily lock the control valves up, however maintain same steady-state pressures of all internal chambers in the long run. Two case studies for the analysis of the snubber were addressed. Practical pulse testing method was also proposed to identify the frequency response characteristics of the snubber.
Keywords
Hydraulic Snubber; State-space Model; Lock-up;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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