Abstract
Semi-active control is a relatively new topic in the flutter suppression of wing-aileron systems and depends greatly on the successful combined design of controllers and actuators, such as the magnetorheological (MR) dampers. This study starts with a novel design of a rotary stepped MR damper of shear mode, which can provide seven levels of torque by altering the magnetic field area inside. Then, it specifies the problem of flutter control for a 3DOF wing model with such a stepped MR damper installed in the position of aileron rotation axis. The study gives the numerical simulations of the flutter suppression based on several control strategies. The wind tunnel test demonstrates that the critical flutter speed was increased by 26.2%.
| Original language | English |
|---|---|
| Pages (from-to) | 14-18 |
| Number of pages | 5 |
| Journal | Zhendong Gongcheng Xuebao/Journal of Vibration Engineering |
| Volume | 18 |
| Issue number | 1 |
| Publication status | Published - Mar 2005 |
| Externally published | Yes |
Keywords
- Magnetorheological damper
- Sub-optimal algorithm
- Vibration control
- Wing