11권 4호 158-164 2003 [한국자동차공학회 논문집 ]
| 제목 | 현가장치의 비선형 설계변수 추정 |
|---|---|
| 분야 | 차량동역학 및 제어 |
| 언어 | Korean |
| 저자 | 박주표(성균관대학교), 최연선(성균관대학교) |
| Key Words | Suspension(현가장치), Nonlinear spring(비선형 스프링), Nonlinear damper(비선형 댐퍼), Nonlinear system identification(비선형 시스템 규명), EF-SONATA(EF 소나타) |
| 초록 | The suspension system of cars is composed of dampers and springs, which usually have nonlinear characteristics. The nonlinear characteristics make the differences in the results of analytical models and experiments. In this study. the nonlinear system identification method which does not assume a special form for nonlinear dynamic systems and minimize the error by calculating the error reduction ratio is devised to estimate the nonlinear parameters of the suspension system of an EF-SONATA car from the field running test data. The results show that the spring has a cubic nonlinear term and the damper has a coupled nonlinear term. Also, the numerical results with the estimated nonlinear parameters agree well with the field test data for the different running speeds. |
| 원문(PDF) | 다운로드 |