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THE DEVELOPMENT OF ELASTOMERS FOR ENGINE MOUNTING DEVICES

A brief history of engine mounting devices is provided, illustrating early designs and reviewing the evolution of testing from simple material requirements to current small-amplitude dynamic testing of engine mounts. It is pointed out that the improved methods for determining ride performance (dynamic rate, damping coefficient) characteristics have allowed design engineers to take advantage of data generated by computer simulations of vehicles. Improvements in other areas are discussed: rubber-to-metal bonding, rubber compounding (introduction of new elastomers, enhancement of existing materials), and design principles. One major design development is the PLEB (Preloaded Engine Bushing) Mount. The basic concept is to provide precompression to the rubber during the assembly process. For the future, it is stated that front-wheel drive cars and smaller engines will continue to challenge mount engineers. Development goals for future mounting devices are listed, including the development of elastomers with stable characteristics over a wide range of operating conditions.

  • Supplemental Notes:
    • Also published in HS-028 778 (SAE-SP-464), "Past, Present and Future of Automotive Elastomer Applications," Warrendale, Pennsylvania, 1980, p 37-41. Presented at SAE Congress and Exposition, Detroit, 25-29 February 1980.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Muzechuk, R A
  • Publication Date: 1980

Media Info

  • Features: References;
  • Pagination: 5 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00391478
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 800274, HS-028 785
  • Files: HSL, USDOT
  • Created Date: Dec 30 1984 12:00AM