Contact behavior analysis of X-ring under internal pressure and uniform squeeze rate using photoelastic experimental hybrid method

Title
Contact behavior analysis of X-ring under internal pressure and uniform squeeze rate using photoelastic experimental hybrid method
Author(s)
황재석신동철[ 신동철]이시왕Alunda Ouma Bernard[Alunda Ouma Bernard]임현석
Keywords
O-RING; ORTHOTROPIC COMPOSITES; STRESS
Issue Date
201410
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Citation
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v.28, no.10, pp.4063 - 4073
Abstract
X-rings were introduced as a result of the limitations of O-rings that twist, especially during dynamic applications. The X-ring design avoids twisting, and the presence of a groove between the lobes acts as a lubricant reservoir that improves the packing life of these seals. Because of the multiple seal points, less squeeze rate is required to provide an effective seal. In addition, friction and wear is decreased, which increases seal life and decreases maintenance costs. Therefore, a better understanding of the behavior and stress distribution of X-rings under a loading condition of uniform squeeze rate and internal pressure is necessary. However, most research to date has been done on the O-ring. We focused on analysis of contact length and contact stresses developed in X-rings under a uniform squeeze rate of 20% (which is suitable for static applications) using a photoelastic experimental hybrid method, and ascertained the packing ability of the X-ring. We show that sealing rings with the X geometry have considerably higher contact stresses than O-ring seals. Also, the contact stresses were higher than the internal stresses of the X-ring. Therefore, our analysis of the contact stresses is adequate in establishing the behavior of the X-ring.
URI
http://hdl.handle.net/YU.REPOSITORY/30632http://dx.doi.org/10.1007/s12206-014-0919-3
ISSN
1738-494X
Appears in Collections:
공과대학 > 기계공학부 > Articles
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