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Flow Analysis of A Pumping Tube for The Development of A Self-Inflating Tire Using Fluid-Structure Interaction Analyses

  • Chul Hyung Lee
  • Myeong Jae Han
  • Tae Won ParkEmail author
  • Myeong Jun Kim
  • In Chul Sung
  • Sung Pil Jung
Article
  • 13 Downloads

Abstract

In this study, flow analyses were conducted inside pumping tube based on fluid-structure interaction analyses. First, a Computer Aided Engineering (CAE) model was constructed for fluid-structure interaction analyses. The interaction analyses of the three types of pumping tubes proposed herein were conducted under the same conditions, and their efficiencies were compared. Eccentricity analyses were carried out to determine the degree of eccentricity that can be tolerated in the process by selecting the most efficient tube. Subsequently, tests were conducted using negative pressure measurement equipment and simulation modeling was compared and verified under the same conditions. In order to verify the performance of the self-inflating tire developed on this basis, durability and air pressure restoration tests were carried out.

Key Words

Fluid-structure interaction CAE Self-inflating tire Eccentricity Negative pressure 

Nomenclature

Nomenclature

A

area, m2

v

velocity, m/s

L

length, m

P

pressure, psi

h

height, m

g

gravitational acceleration, m/s2

ρ

air density, kg/m3

t

time, s

d

displacement, mm

T

thickness, mm

Subscripts

TWA

total wall area

TD

total displacement

ECC

eccentricity

C

direction cosine of the unit vector vertical to the surface

Φ

potential function

N

shape function

p

nodal potential

m

hydraulic gradient matrix

D

property matrix

Kxx

transmission coefficient in the x-direction

Qf

fluid flow rate

k

stiffness matrix

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References

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Copyright information

© KSAE 2019

Authors and Affiliations

  • Chul Hyung Lee
    • 1
  • Myeong Jae Han
    • 1
  • Tae Won Park
    • 1
    Email author
  • Myeong Jun Kim
    • 2
  • In Chul Sung
    • 2
  • Sung Pil Jung
    • 3
  1. 1.Department of Mechanical EngineeringAjou UniversityGyeonggiKorea
  2. 2.Department of NVHKumho TireGyeonggiKorea
  3. 3.Premium Vehicle R&D CenterKorea Automotive Technology InstituteChungnamKorea

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