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OCTOBER 19-20, 2012 - YMCA University of Science & Technology

OCTOBER 19-20, 2012 - YMCA University of Science & Technology

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Proceedings <strong>of</strong> the National Conference on<br />

Trends and Advances in Mechanical Engineering,<br />

<strong>YMCA</strong> <strong>University</strong> <strong>of</strong> <strong>Science</strong> & <strong>Technology</strong>, Faridabad, Haryana, Oct <strong>19</strong>-<strong>20</strong>, <strong>20</strong>12<br />

6. Conclusion<br />

In present study, effectiveness <strong>of</strong> MR damper as well as fuzzy controller in semi-active suspension system was<br />

investigated. The experimental results related to force-displacement and force-velocity curves indicate the<br />

variation <strong>of</strong> damping force with change in magnitude <strong>of</strong> supplied current. Simulation results, taking quarter car<br />

model into consideration demonstrates that the performance <strong>of</strong> selected controller in semi-active suspension<br />

system is better in handling acceleration and displacement <strong>of</strong> sprung mass under various road conditions<br />

compared to passive suspension system. Thus, MR damper and Fuzzy controller presents a suitable choice for<br />

use in suspension system to attain better results in terms <strong>of</strong> passenger ride comfort and vehicle handling.<br />

References<br />

1. Streiter, R. Fault detection for an active vehicle suspension. Dissertation, TU, Berlin.<br />

2. J.D.Carlson, and K.D. Weiss, A growing attraction to magnetic fluids, J. Machine Design, 66(15), (<strong>19</strong>94)<br />

61-64.<br />

3. J.D. Carlson, and M.J. Chrzan, Magnetorheological Fluid Dampers, U.S. Patent 5277281, <strong>19</strong>94.<br />

4. R. Boelter, and H. Janocha, Performance <strong>of</strong> long-stroke and low-stroke MR fluid damper, Proc. Of SPIE,<br />

Smart Structures and Materials: Passive Damping and Isolation, San Diego, CA, (<strong>19</strong>98) 303-313.<br />

5. Lam, A.H.-F., Liao, W.-H.: Semi-active control <strong>of</strong> automotive suspension systems with magnetorheological<br />

dampers. Int. J. Veh. Des. 33(1/2/3), 50–75 (<strong>20</strong>03)<br />

6. Sassi, S., Cherif, K., Mezghani, L., Thomas, M., Kotrane, A.: An innovative magnetorheological damper<br />

for automotive suspension: from design to experimental characterization. Smart Mater. Struct. 14, 811–822<br />

(<strong>20</strong>05)<br />

7. Nguyen, Q.H., Choi, S.B.: Optimal design <strong>of</strong> MR shock absorber and application to vehicle suspension.<br />

Smart Mater. Struct. 18(3), 035012 (<strong>20</strong>09)<br />

8. Duym, S.W.R.: Simulation tools, modeling and identification, for an automotive shock absorber in the<br />

context <strong>of</strong> vehicle dynamics. Veh. Syst. Dyn. 33, 261-285 (<strong>20</strong>00)<br />

303

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