Paper Title:
Experimental Research of Characteristics of Fluid-Induced Force in Eccentric Seal
  Abstract

This paper sets up a dynamic analysis model for cylinder-seal system. A new identification method for fluid-induced force and stiffness coefficients in eccentric seal is presented. The study shows that the system stability decreases with increasing cross-coupled stiffness in a certain range. Beyond this range, the system will be destabilized. Influences of rotating speed, inlet pressure, eccentricity and clearance on fluid-induced force were tested in the rig. It was found that a large tangential fluid-induced force was produced in the direction perpendicular to the eccentric displacement of rotor. The difference between the tangential and radial fluid-induced force became larger and larger with the increasing rotating speeds. Under the action of the seal force, the logarithmic decrement descended with increasing rotating speeds, and the stability of the system decreased. These effects became more and more serious for higher inlet pressure and tighter clearance.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Vibration, Noise Analysis and Control
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
2034-2040
DOI
10.4028/www.scientific.net/AMR.291-294.2034
Citation
W. F. Zhang, J. G. Yang, H. Cao, R. Guo, D. Sun, "Experimental Research of Characteristics of Fluid-Induced Force in Eccentric Seal", Advanced Materials Research, Vols. 291-294, pp. 2034-2040, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chao Ying Zhou, Peng Xie, Wen Ying Ji
Abstract:Rain-wind induced vibration (RWIV) is a violent oscillation that appears on cable stayed bridge under rainy weather. Many researchers agree...
4064
Authors: Hua Gu, Gen Hua Yan
Abstract:During electricity generation in the power station, the dynamic pulsating loads bring about vibration on penstock and expansion joint...
2892
Authors: Yu Xu Zhang
Chapter 1: Vibration Engineering
Abstract:Stability of the large thin-walled absorption tower is essential to its safe operation. The large finite-element analysis software is adopted...
47
Authors: Peng Fei Qian, Guo Liang Tao, Jian Feng Chen, Bo Lu
Abstract:For the stick-slip phenomenon encountered in the pneumatic cylinder motion in practical application, the stick-slip mechanism was analyzed...
775
Authors: Li Dai, Yun Gong Li, Yu Liu, Jian Wang
Chapter 2: Mechanics Research in Civil Engineering and Material Engineering
Abstract:The concrete pump truck integrates transportation with pouring process ,which is characterized with flexibility, facility and celerity in...
138