What is the role of the structure of the bionic silicone seal ring design

In order to reduce the failure probability of rubber sealing ring, a new sealing ring structure based on bionics was designed. The three concave ridges of the bionic ring are raised on either side by earthworms very similar. The static seal and dynamic seal of bionic ring designed by convex circle are simulated by finite element method.

In addition, preloading, medium pressure, speed, friction coefficient and material parameters will also affect the sealing performance of silicone rubber sealing ring. The results show that the stress of bionic seal ring is symmetrically distributed without high pressure static seal. Stress values appear on the inner diconvex. The high contact stress is mainly concentrated in the left bulge. The stress distribution becomes uneven at moderate pressures. When stress and contact stress increase, preloading, medium pressure, and static seal rubber hardness increase. Bionic ring can avoid rolling deformation reciprocating dynamic seal, its working life is longer than o-ring and rectangular ring.

The sealing ring is widely used in machinery, petroleum industry, aerospace and other fields with good sealing performance and low cost. Popular sealing ring, including O ring, rectangular ring. In general, they can be used for static seal, reciprocating seal, rotary seal. However, there are drawbacks to being in the dynamosphere. Liquid silica gel manufacturers, for example, silicone rubber sealing ring is easy to roll, reciprocating dynamic sealing, these defects may lead to the deformation of the leakage medium. Although the seal ring can be replaced under the condition of reliable many dynamic seals, fatigue damage can easily occur. Rectangular rings are generally large contact surfaces caused by high friction. Therefore, it is the essence of developing a seal ring with drag reduction and better sealing performance and dynamic capacity optimization.