Three-Axis Vibration Isolation of a Full-Scale Magnetorheological Seat Suspension
This study examines the three-axis vibration isolation capabilities of a full-scale magnetorheological (MR) seat suspension system utilizing experimental methods to assess performance under both single-axis and simultaneous three-axis input conditions. To achieve this, a semi-active MR seat damper w...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/15/12/1417 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850242016972111872 |
|---|---|
| author | Young T. Choi Norman M. Wereley Gregory J. Hiemenz |
| author_facet | Young T. Choi Norman M. Wereley Gregory J. Hiemenz |
| author_sort | Young T. Choi |
| collection | DOAJ |
| description | This study examines the three-axis vibration isolation capabilities of a full-scale magnetorheological (MR) seat suspension system utilizing experimental methods to assess performance under both single-axis and simultaneous three-axis input conditions. To achieve this, a semi-active MR seat damper was designed and manufactured to address excitations in all three axes. The damper effectiveness was tested experimentally for axial and lateral motions, focusing on dynamic stiffness and loss factor using an MTS machine. Prior to creating the full-scale MR seat suspension, a scaled-down version at one-third size was developed to verify the damper’s ability to effectively reduce vibrations in response to practical excitation levels. Additionally, a narrow-band frequency-shaped semi-active control (NFSSC) algorithm was developed to optimize vibration suppression. Ultimately, a full-scale MR seat suspension was assembled and tested with a 50th percentile male dummy, and comprehensive three-axis vibration isolation tests were conducted on a hydraulic multi-axis simulation table (MAST) for both individual inputs over a frequency range up to 200 Hz and for simultaneous multi-directional inputs. The experimental results demonstrated the effectiveness of the full-scale MR seat suspension in reducing seat vibrations. |
| format | Article |
| id | doaj-art-2135f01ac1db48ed83c99abe7992ce36 |
| institution | OA Journals |
| issn | 2072-666X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-2135f01ac1db48ed83c99abe7992ce362025-08-20T02:00:24ZengMDPI AGMicromachines2072-666X2024-11-011512141710.3390/mi15121417Three-Axis Vibration Isolation of a Full-Scale Magnetorheological Seat SuspensionYoung T. Choi0Norman M. Wereley1Gregory J. Hiemenz2Department of Aerospace Engineering, University of Maryland, College Park, MD 20742, USADepartment of Aerospace Engineering, University of Maryland, College Park, MD 20742, USAInnoVital Systems Inc., Calverton, MD 20705, USAThis study examines the three-axis vibration isolation capabilities of a full-scale magnetorheological (MR) seat suspension system utilizing experimental methods to assess performance under both single-axis and simultaneous three-axis input conditions. To achieve this, a semi-active MR seat damper was designed and manufactured to address excitations in all three axes. The damper effectiveness was tested experimentally for axial and lateral motions, focusing on dynamic stiffness and loss factor using an MTS machine. Prior to creating the full-scale MR seat suspension, a scaled-down version at one-third size was developed to verify the damper’s ability to effectively reduce vibrations in response to practical excitation levels. Additionally, a narrow-band frequency-shaped semi-active control (NFSSC) algorithm was developed to optimize vibration suppression. Ultimately, a full-scale MR seat suspension was assembled and tested with a 50th percentile male dummy, and comprehensive three-axis vibration isolation tests were conducted on a hydraulic multi-axis simulation table (MAST) for both individual inputs over a frequency range up to 200 Hz and for simultaneous multi-directional inputs. The experimental results demonstrated the effectiveness of the full-scale MR seat suspension in reducing seat vibrations.https://www.mdpi.com/2072-666X/15/12/1417three-axis vibration isolationaircraft vibrationseat suspensionmagnetorheological |
| spellingShingle | Young T. Choi Norman M. Wereley Gregory J. Hiemenz Three-Axis Vibration Isolation of a Full-Scale Magnetorheological Seat Suspension Micromachines three-axis vibration isolation aircraft vibration seat suspension magnetorheological |
| title | Three-Axis Vibration Isolation of a Full-Scale Magnetorheological Seat Suspension |
| title_full | Three-Axis Vibration Isolation of a Full-Scale Magnetorheological Seat Suspension |
| title_fullStr | Three-Axis Vibration Isolation of a Full-Scale Magnetorheological Seat Suspension |
| title_full_unstemmed | Three-Axis Vibration Isolation of a Full-Scale Magnetorheological Seat Suspension |
| title_short | Three-Axis Vibration Isolation of a Full-Scale Magnetorheological Seat Suspension |
| title_sort | three axis vibration isolation of a full scale magnetorheological seat suspension |
| topic | three-axis vibration isolation aircraft vibration seat suspension magnetorheological |
| url | https://www.mdpi.com/2072-666X/15/12/1417 |
| work_keys_str_mv | AT youngtchoi threeaxisvibrationisolationofafullscalemagnetorheologicalseatsuspension AT normanmwereley threeaxisvibrationisolationofafullscalemagnetorheologicalseatsuspension AT gregoryjhiemenz threeaxisvibrationisolationofafullscalemagnetorheologicalseatsuspension |