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학술저널
저자정보
저널정보
한국자동차공학회 International journal of automotive technology International journal of automotive technology Vol.6 No.4
발행연도
2005.8
수록면
421 - 427 (7page)

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This work analyzes the behaviors of aerated lubricant in the gap between con-rod bearing and journal. It is assumed that the film formation with aerated lubricant is influenced by the two major factors. One is the density characteristics of the lubricant due to the volume change of lubricant for the formation of bubbles and the other is the viscosity characteristics of the lubricant due to the surface tension of the bubble in the lubricant. These two major factors surprisingly increase the load capacity in some ranges of bubble sizes and densities. Modified Reynolds’ equation is developed for the computation of fluid film pressure with the effects of aeration ratio in the lubricant. From the calculated load capacity by solving modified Reynolds’ equation, journal locus is computed with Mobility method after comparing it with the applied load at each time step. The differences of journal orbits between aerated and pure lubricants are shown in the computed results.

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ABSTRACT

1. INTRODUCTION

2. MODEL OF THE AERATED LUBRICANT

3. COMPUTATION OF BOTH FLUID FILM PRESSSURE AND JOURNAL ORBIT

4. RESULTS

5. CONCLUSION

ACKNOWLEDGEMENT

REFERENCES

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