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A Study on Design Sensitivity of Elastomeric O-ring Squeezed and Highly Pressurized Under Laterally One-sided Constrained Condition  

Park, Sung-Han (Agency for Defense Development)
Kim, Jae-Hoon (BK21 Mechatronics Group at Chungnam National University)
Kim, Won-Hoon (Agency for Defense Development)
Publication Information
Journal of the Korean Society of Safety / v.22, no.6, 2007 , pp. 27-34 More about this Journal
Abstract
Static or dynamic elastomeric O-ring seals are installed between joining parts, and play key roles of high pressure-tightening. Sealing performance and structural safety of the O-ring are dependent on groove design, plain diameter, squeeze and applications such as pressure and temperature. In this study, to solve O-ring problem squeezed and highly pressurized under laterally one-sided constrained condition, hyperelastic FE analyses are performed, and FE results are compared with measured ones by computer-aided tomography, deformed shape and extrusion depth of the O-ring. Through the comparisons, FE analysis technique was verified. In order to evaluate design sensitivity, Taguchi method was used to select FE analysis cases. Adjustment parameters are clearance gap, groove comer radius, plain diameter and squeeze. By means of verified FE analysis technique, it has been analysed how the parameters have effects on contact stress fields, internal stress fields, and extrusion depths. Sealing performance has been evaluated based on contact stress fields and contact widths, and structural safety on internal stress and strain, extrusion lengths.
Keywords
O-ring; design sensitivity; finite element analysis; sealing performance; extrusion depth; peak contact stress; one-side laterally constrained; squeezed and pressurized;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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