Vibrational and Sound Radiation Properties of a Double Layered Diesel Engine Gear Cover

The introduction of a thin fluid layer between two layers of sheet metal offers a highly effective and economical alternative to the use of constrained viscoelastic damping layers in sheet metal structures. A diesel engine gear cover, which is constructed of two sheet metal sections spot welded together, takes advantage of fluid layer damping to produce superior vibration and sound radiation performance. In this paper, the bending of a double layered plate coupled through a thin fluid layer is modeled using a traveling wave approach which results in a impedance function that can be used to assess the vibration and sound radiation performance of practical double layered plate structures. Guided by this model, the influence of fluid layer thickness and inside-to-outside sheet thickness is studied.

• Record URL:
  • https://doi.org/10.4271/1999-01-1773
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Welsh, David A
  • Evensen, Harold A
• Conference:
  • Noise & Vibration Conference & Exposition
  • Location: Traverse City Michigan, United States
  • Date: 1999-5-17 to 1999-5-20
• Publication Date: 1998-2-23

Language

• English

Media Info

• Media Type: Web
• 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: Gears; Metals; Radiation hazards; Vibration
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01794759
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 1999-01-1773
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:17AM