An Experimental Investigation on Mechanical Fatigue Property of Chemical Starch-Based ER Fluids

Abstract

In this work, mechanical fatigue properties of a chemical starch-based ER fluid are empirically investigated. To do this, a flow-mode type electroviscometer, which has the same working mode as the cylindrical ER damper, is constructed. The linear reciprocating motion is obtained by driving a hydraulic power unit, and the number of fatigue cycle is measured by the limit switch. The field-dependent yield stress and response time to step input are evaluated as a function of the operating cycle. In addition, the vibration control performance of ER suspension for a passenger car is analyzed by incorporating the full-vehicle model with the yield stresses evaluated at different operating cycles.

Get full access to this article

View all access options for this article.

References

1. Gandhi, M.V. and Thompson, B.S. 1992. Smart Materials and Structures, Chapman and Hall, London.

2. Jordan, T.C. and Shaw, M.T. 1998. “Electrorheology,” IEEE Transactions on Electrical Insulation, 24:849-879.

3. Block, H. and Kelly, J.P. 1988. “Electro-rheology,” Journal of Physics D: Apply Physics 21:1661-1677.

4. Xu, Y.Z. and Liang, R.F. 1991. “Electrorheological Properties of Semiconducting Polymer-based Suspension,” Journal of Rheology, 35:1355-1373.

5. Park, W.C. , Choi, S.B. , Cheong, C.C. , Suh, M.S. and Yeo, M.S. 1996. “Boundary Lubrication Characteristics of Silica-based Electro-rheological Fluids,” Journal of Intelligent Material Systems and Structures, 7:511-516.

6. Park, W.C. , Choi, S.B. and Suh, M.S. 1999. “Material Characteristics of an ER Fluid and its Influence on Damping Forces of an ER Damper Part I: Material Characteristics,” Journal of Materials and Design, 20:317-323.

7. Lee, H.G. , Choi, S.B. , Han, S.S. and Kim, J.H. 1999. “Bingham and Response Characteristics of ER Fluids in Shear and Flow Modes.” In: Proceedings of the 7th International Conference on Electro-Rheological Fluids and Magneto-Rheological Suspension, pp. 523-530.

8. Choi, S.B. , Choi, Y.T. and Park, D.W. 2000. “A Sliding Mode Control of a Full-Car Electrorheological Suspension System via Hardware-in-the-Loop Simulation,” ASME Journal of Dynamic Systems, Measurement and Control, 122:114-121.

9. Nigam, N.C. and Narayanan, S. 1994. Applications of Random Vibrations, Springer-Verlag, New York.