| 제목 |
반능동형 충격흡수기의 연속가변 감쇠특성에 대한 CFD 해석 |
| 분야 |
차체 및 구조 안전 |
| 언어 |
Korean |
| 저자 |
윤준원(군산대학교) |
| Key Words |
Semi-active shock absorber(반능동형 충격흡수기), Continuous and variable damping characteristics(연속가변 감쇠특성), Pressure distribution(압력분포), Spool valve(스풀밸브), Flow resistance characteristics(유동저항특성) |
| 초록 |
Recently, a semi-active shock absorber has been taking interest because of its low cost and simple structure than the active one. CFD analysis has been conducted to investigate the continuous and variable damping characteristics of the semi-active shock absorber. Also, the flow resistance characteristics of a spool valve has been examined to identify individual parameters(namely, exponent and discharge coefficient) of pressure-flow rate relation needed for the accurate valve modeling. The flow field in the damping valve was simulated using the commercial code, CFX-5.3. The numerical results showed reasonable agreement with the experimental outputs. The pressure distribution with the variation of spool opening length and volume flow rate were discussed in detail. And the continuous and variable damping performance was found clearly. The individual parameter of spool valve were obtained as a function of orifice area. The exponent and discharge coefficient were fitted in with the first and the third polynomial respectively.{{br}} |
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