Three-Axis Vibration Isolation of a Magnetorheological Seat Suspension
Author Information
Author(s): Choi Young T., Wereley Norman M., Hiemenz Gregory J.
Primary Institution: Department of Aerospace Engineering, University of Maryland
Hypothesis
Can a full-scale magnetorheological seat suspension effectively isolate vibrations in three axes?
Conclusion
The full-scale magnetorheological seat suspension significantly reduces vibrations in all three axes during testing.
Supporting Evidence
- The MR seat damper showed significant improvements in vibration isolation performance over a frequency range up to 200 Hz.
- Testing demonstrated that the NFSSC algorithm effectively reduced vibrations for both individual and simultaneous inputs.
- The controlled MR seat suspension achieved up to 93% reduction in seat vibration compared to rigid seat suspensions.
Takeaway
This study shows that a special seat can help reduce bumps and shakes for people sitting in vehicles, making it more comfortable.
Methodology
Experimental tests were conducted on a full-scale magnetorheological seat suspension using a hydraulic multi-axis simulation table.
Limitations
The study primarily focused on a single full-scale model and may not account for all real-world conditions.
Participant Demographics
50th percentile male dummy used for testing.
Digital Object Identifier (DOI)
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