Abstract
In recent years in Japan, many studies have been carried out on MR dampers as developments of semi-active vibration control devices. The MR damper uses a magneto-rheological (MR) fluid as an operating fluid. MR fluids are one of the controllable fluids that respond to external fields (magnetic fields / electric fields). MR fluids drastically alter their rheological properties in accordance with the strength of the applied magnetic field. MR dampers incorporate electromagnets that induce the required magnetic fields inside the dampers. Damping force generated by the MR damper is therefore controllable by adjusting only the electric current supplied to the electromagnets. This paper discusses the design theory of MR dampers for realizing the required force as a basic study on MR dampers. The state of the MR fluid flow inside the damper is considered on the basis of the fluid dynamics. Design formulas are derived for each condition, i.e., with and without a magnetic field, and their practicability is verified by comparison with experimental test results using a typical commercial MR damper.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 115-120 |
| Number of pages | 6 |
| Journal | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
| Volume | 428 |
| Issue number | 2 |
| State | Published - 2001 |
| Externally published | Yes |
| Event | 2001 ASME Pressure Vessels and Piping Conference - Atlanta, GA, United States Duration: Jul 22 2001 → Jul 26 2001 |
ASJC Scopus subject areas
- Mechanical Engineering