Abstract
An analytical approach to determine the axial and radial stress distribution in packing in stuffing-box seals is presented taking account of stress relaxation by means of a viscoelastic model. Radial-to-axial stress ratio and friction coefficient of the asbestos and graphite packing rings were experimentally determined, and they were found to be constant over time under the stress relaxation condition. Change of stress distribution with time in asbestos/graphite packing in stuffing-box seals is investigated by comparing the analytical results with the corresponding experimental results. The stress in packing decreases rapidly just after gland tightening and gradually decreases further with time, and it reaches an asymptotic value. The stress relaxation is reduced by repeated operation of gland tightening. This analytical model can simulate such behavior of packing as observed in actual packing installation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: JSME international journal. Ser. 3, Vibration, control engineering, engineering for industry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
