| Course Contents |
| Definition of electrorheology (ER): Affecting factors such as field strength, field frequency, shear rate, temparature, promoter, humidity, pressure, misel formation, chain length, partical size and composition of colloidal dispersion.Rheology of ER fluids: Polarizability, structure formation, investigation of viscoelastic properties, effect of partical size on dynamic stability of an ER fluid. Concept of an ideal ER fluid: How to overcome precipitation, abrasion and environmental stability problems? Applications of polymer-based ER fluids to new engineering areas: The limitations of present ER fluids, ER controlled clutches, Bingham plastic analysis of ER valves, damping systems, commercial ER active apparatuses and their uses. ER fluids and their market place: Why to use ER technology? Large application potential, low cost, low response time, high sensitivity and computer controlle.
|
| Weekly Course Content |
| Week |
Subject |
Learning Activities and Teaching Methods |
| 1 |
Definition of electrorheology (ER), discussion of effecting factors
|
On the subject of discussion and evaluation |
| 2 |
Rheology of ER fluids
|
On the subject of discussion and evaluation |
| 3 |
Investigation of viscoelastic properties
|
On the subject of discussion and evaluation |
| 4 |
An approach to ideal ER fluid disayn.
|
On the subject of discussion and evaluation |
| 5 |
Investigation of sedimentation, abrasion and environmental problems
|
On the subject of discussion and evaluation |
| 6 |
Application of ER properties of polymers to new engineering areas.
|
On the subject of discussion and evaluation |
| 7 |
Limitations of existing ER fluids
|
On the subject of discussion and evaluation |
| 8 |
mid-term exam |
|
| 9 |
ER controlled clutches
|
On the subject of discussion and evaluation |
| 10 |
Vibration dumping systems, valves.
|
On the subject of discussion and evaluation |
| 11 |
Analysis of Bingham plastics
|
On the subject of discussion and evaluation |
| 12 |
Use of ER fluids in car shock absorbers
|
On the subject of discussion and evaluation |
| 13 |
Commercial ER active apparatuses and their use.
|
On the subject of discussion and evaluation |
| 14 |
ER fluids and potential applications. Why to use ER technology?
|
On the subject of discussion and evaluation |
| 15 |
ER fluids and potential applications. Why to use ER technology?
|
On the subject of discussion and evaluation |
| 16 |
final exam |
|
| Recommend Course Book / Supplementary Book/Reading |
| 1 |
JBPark, JDBronzino, Biyomalzeme, CRC Press, 2003 RMOttenbrite, SWKim, Polimerik İlaçlar ve İlaç Taşıyıcı Sistemler, CRC Press, 2002 E. Pişkin, Kontrollü İlaç Serbestleştiren Sistemler, 1990 |
| Required Course instruments and materials |
| projection |
