This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Comparing the Whole Body Vibration Exposures across Three Truck Seats
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 05, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Whole-body vibration (WBV) is associated with several adverse health and safety outcomes including low-back pain (LBP) and driver fatigue. The objective of this study was to evaluate the efficacy of three commercially-available air-suspension truck seats for reducing truck drivers’ exposures to WBV. Seventeen truck drivers operating over a standardized route were recruited for this study and three commercially-available air suspension seats were evaluated. The predominant, z-axis average weighted vibration (Aw) and Vibration Dose Values (VDV) were calculated and normalized to represent eight hours of truck operation. In addition, the Seat Effective Amplitude Transmissibility (SEAT), the ratio of the seat-measured vibration divided by the floor-measured vibration, was compared across the three seats. One seat had significantly higher on-road WBV exposures whereas there were no differences across seats in off-road WBV exposures. The SEAT values, calculated over the whole route (which was predominantly on-road) indicated that one seat reduced WBV exposure by 9% on average and the other two seats had nearly double the attenuation performance based on A(8) exposures. The performance differences across seats may have important practical implications for truck procurement and overall truck driver health. The higher performing seats nearly doubled the amount of time drivers could operate their trucks before reaching the daily vibration action limits recommended by the International Organization for Standardization. Seat suspension-based design differences are thought to account for the performance differences.
|Technical Paper||Active Seat Isolation for Construction and Mining Vehicles|
|Technical Paper||Heavy Vehicle Ride and Driver Comfort|
|Technical Paper||Methods for Predicting Passenger Vibration Discomfort|
CitationWang, F., Johnson, P., Davies, H., and Du, B., "Comparing the Whole Body Vibration Exposures across Three Truck Seats," SAE Technical Paper 2017-01-1836, 2017, https://doi.org/10.4271/2017-01-1836.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
|[Unnamed Dataset 3]|
- Conway, G., Szalma J., and Hancock P., "A Quantitative Meta-analytic Examination of Whole-body Vibration Effects on Human Performance," Ergonomics 50(2): 228-245, 2007, doi:10.1080/00140130600980888.
- Blood, R., and Johnson P., "Quantifying Whole Body Vibration Exposures in Metropolitan Bus Drivers: An Evaluation of Three Seats," Noise & Vibration Worldwide 42(2): 22-29, 2011, doi:10.1260/0957-45188.8.131.52.
- Kim J., Zigman M., Aulck L., Ibbotson J, et al., “Reduced Exposure to Whole Body Vibration Improves Low Back Pain Among Professional Truck Drivers: A Randomized Controlled Trial Study,” presented at the 19th Triennial Congress of the International Ergonomics Association, Australia, August 9-14, 2015.
- The International Organization for Standardization (ISO), “Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration,” ISO 2631-1, 1997.
- Kim J., Zigman M., Aulck L., Hughes M., et al., “Whole body vibration exposures in long-haul truck drivers,” Proceedings of the Human Factors and Ergonomics Society Annual Meeting 59(1): 1274-1278, 2015, doi: 10.1177/1541931215591205.
- Kim, J., Zigman, M., Dennerlein, J. and Johnson, P., “Cross-sectional Analysis of Whole Body Vibration Exposures and Health Status among Long-haul Truck Drivers,” Proceedings of the Human Factors and Ergonomics Society Annual Meeting,60(1), 928-932, 2016.
- Johnson P., Blood R., and Aulck L., “Whole body vibration energy transmission in a passive and electromechanically active suspension seat,” presented at the 47th United Kingdom Conference on Human Responses to Vibration, UK, September 17-19, 2012.