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research-article

Experimental and Numerical study of performance behavior of triangular seal under high hydraulic pressure

[+] Author and Article Information
Bruno Mose

School of Mechanical Engineering, Yeungnam University, 280, Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea
mbruno@eng.jkuat.ac.ke

Hyun-Seok Lim

School of Mechanical Engineering, Yeungnam University, 280, Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea
lin9731@hanmail.net

Dong-Kil Shin

School of Mechanical Engineering, Yeungnam University, 280, Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Korea
dkshin@yu.ac.kr

1Corresponding author.

ASME doi:10.1115/1.4039003 History: Received June 15, 2017; Revised December 26, 2017

Abstract

In this paper, a seal with triangular cross section was proposed and its performance behavior under compression and various hydraulic pressures was analyzed through experimental and numerical methods. The seal was designed to have a 90 degree corner located near the extrusion gap while hydraulic pressure was applied at an inclination. With this design, it was found that even at hydraulic pressures of up to 18 MPa, the seal offered good fluid tight sealing capabilities without indications of extrusion failures. Such high pressure offers new possibilities for successful application of the seal in aircraft and rocket propulsion equipment. Moreover, the resistance of the seal against leakages was assured because measured contact stresses were greater than applied pressures. A numerical simulation through FEA showed that tilting of the delta ring even at angles of did not have any effect on the Von Mises stresses. The FEA results also demonstrated that the deformations and fringe patterns of delta ring were similar to the experimental results.

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