Noise and vibrations in locomotive cabs can significantly affect crew performance and cause long-term ailments, such as hearing loss, fatigue, and low back pain. Methods to reduce noise and vibrations have been implemented for the high frequency range but resulted in low frequency resonances. These resonances can exacerbate low frequency vibrations (<0.5 Hz), which can cause motion sickness. In addition, a tonal noise exists in the 50 to 200 Hz frequency range, which is more annoying than broadband noise, and which is not addressed in current noise reduction methods based on A-weighted noise metrics. To reduce vibration, the innovative approach proposed here will consider isolating only the floor of the cab rather than the whole cab as was previously reported in the literature. The isolation is achieved using nonlinear springs and dampers that provide isolation at high frequencies while avoiding resonances at low frequencies. The smaller inertia of the floor, controls, and crew, as compared to the entire cab, makes the necessary components much less expensive. To reduce the tonal noise in the range 50 to 200 Hz, active noise control is used in the vicinity of the crew seats. Analyses have shown that this new approach is very promising, and demonstrations are planned for mockups of locomotive cabs.
Skip Nav Destination
ASME 2007 Rail Transportation Division Fall Technical Conference
September 11–12, 2007
Chicago, Illinois, USA
Conference Sponsors:
- Rail Transportation Division
ISBN:
0-7918-4800-0
PROCEEDINGS PAPER
A New Approach for Noise and Vibration Control in Locomotive Cabs Available to Purchase
Timothy P. Harrigan,
Timothy P. Harrigan
Foster-Miller Inc., Waltham, MA
Search for other works by this author on:
Gopal Samavedam,
Gopal Samavedam
Foster-Miller Inc., Waltham, MA
Search for other works by this author on:
S. K. Punwani
S. K. Punwani
Federal Railroad Administration, Vienna, VA
Search for other works by this author on:
Timothy P. Harrigan
Foster-Miller Inc., Waltham, MA
Gopal Samavedam
Foster-Miller Inc., Waltham, MA
S. K. Punwani
Federal Railroad Administration, Vienna, VA
Paper No:
RTDF2007-46011, pp. 39-42; 4 pages
Published Online:
March 23, 2009
Citation
Harrigan, TP, Samavedam, G, & Punwani, SK. "A New Approach for Noise and Vibration Control in Locomotive Cabs." Proceedings of the ASME 2007 Rail Transportation Division Fall Technical Conference. ASME 2007 Rail Transportation Division Fall Technical Conference. Chicago, Illinois, USA. September 11–12, 2007. pp. 39-42. ASME. https://doi.org/10.1115/RTDF2007-46011
Download citation file:
11
Views
Related Proceedings Papers
Related Articles
A Method for Designing and Fabricating Broadband Vibration Absorbers for Structural Noise Control
J. Vib. Acoust (August,2007)
Implications of Nonsub-Wavelength Resonator Spacing on the Sound Transmission Loss Predictions of Locally Resonant Metamaterial Partitions
J. Vib. Acoust (August,2021)
A Comparative Study and Analysis of Semi-Active Vibration-Control Systems
J. Vib. Acoust (October,2002)
Related Chapters
Research on Autobody Panels Developmental Technology Based on Reverse Engineering
Proceedings of the 2010 International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2010)
Toward More Effective Evaluation and Control of Airport Noise
Community Noise
Intelligent Vibration Control of Structures against Earthquakes Using Hybrid Damper
International Conference on Mechanical and Electrical Technology 2009 (ICMET 2009)