Noise and Vibration Prediction and Validation for Off-Highway Vehicle Cab Using Hybrid FE-SEA Methodology
Operator noise is an important aspect for noise and vibration of off-highway vehicles and a quieter cab is critical for the operator comfort. The noise level inside the cab is influenced by structural and acoustic transfer paths. In this paper, we used hybrid FE-SEA approach to consider both structural and acoustic transfer path as FEM and SEA methods individually face limitations in high and low frequencies respectively. A hybrid FE-SEA cab model was built to predict the structural and acoustic transfer functions. The analysis model was built with the systematic approach validated at each step with the laboratory test results. For the structural transfer function, structural excitations were applied at four cab mount locations and accelerations at various locations on the cab were validated. For the acoustic transfer function, the cab was excited with the volume velocity source inside the cab and sound power output of various panels were calculated and compared to the test results. Good agreement was observed between the simulation and the test results for both structural transfer path and acoustic transfer path.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
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Supplemental Notes:
- Abstract reprinted with permission of SAE International.
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Authors:
- Chaudhari, Parag
- Sullivan, Joseph
- Liu, Jinghao
- Suh, Sanghoon
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Conference:
- Noise and Vibration Conference & Exhibition
- Location: Grand Rapids Michigan, United States
- Date: 2019-6-10 to 2019-6-13
- Publication Date: 2019-6-5
Language
- English
Media Info
- Media Type: Web
- Features: References;
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Serial:
- SAE Technical Paper
- Publisher: Society of Automotive Engineers (SAE)
- ISSN: 0148-7191
- EISSN: 2688-3627
- Serial URL: http://papers.sae.org/
Subject/Index Terms
- TRT Terms: All terrain vehicles; Finite element method; Mathematical prediction; Noise; Statistical analysis; Vehicle interiors; Vibration
- Subject Areas: Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01714273
- Record Type: Publication
- Source Agency: SAE International
- Report/Paper Numbers: 2019-01-1479
- Files: TRIS, SAE
- Created Date: Aug 21 2019 9:35AM