This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Passive Engine Mounts-Some Directions for Further Development
Annotation ability available
Sector:
Language:
English
Abstract
A car engine suspension system has to comply with numerous constraints, sometimes controversial, thus making engine mounts design and optimization an extremely difficult task. Active mounts, although having important advantages, are still more expensive and less reliable. The paper shows that there is substantial room for improvements in passive engine mounts, if some concepts proven in vibration isolators for other applications are utilized. These concepts include: use of specific non-linear characteristics to obtain constant natural frequency in a broad weight-load range as well as to make captive variable stiffness mounts; use of materials with high internal damping as well as materials with highly amplitude-dependent damping and stiffness; use of mounts combining two resilient elements with intermediate mass or spring-connected damper; and utilizing benefits of small-size mounts.
Recommended Content
Citation
Rivin, E., "Passive Engine Mounts-Some Directions for Further Development," SAE Technical Paper 850481, 1985, https://doi.org/10.4271/850481.Also In
References
- “Electronically-Controlled Engine Mounting System Smooths Transverse Power Unit,” Automotive Engineering 91 11 67 70 1983
- Johnson, S. Subhedar, J. “Computer Optimization of Engine Mounting Systems,” SAE Paper 790974
- Geck, P.E. Patton, R.D. “Front Wheel Drive Engine Mount Optimization,” SAE Paper 840736 Proceedings of the 5th International Conference on Vehicular Structural Mechanics (SAE Publication P-144) 1984
- Rivin, E.I. “Principles and Criteria of Vibration Isolation of Machinery,” Trans. ASME, Journal of Mechanical Design 101 3 1979
- Rivin, E.I. “Vibration Isolation of Industrial Machinery - Basic Considerations,” S)V Sound and Vibration November 1978
- “Engine Mounts,” Automotive Engineer 404 405 October 1969
- Rivin, E.I. “Properties and Prospective Applications of Ultrathin-Layered Rubber-Metal Laminates for Limited Travel Bearings,” Tribology International 16 1 17 26 1983
- U.S. Patent 3, 442, 475
- U.S. Patent 3, 460, 786
- USSR Certificate of Invention 312, 995
- Snowdon, J.C. Handbook of Vibration and Noise Control Pennsylvania State University 1979
- Puydak, R.C. Kruse, D.F. Booth, D.A. “Techniques for Obtaining Effective Elastomeric Mountings,” Transactions of the Institution of Mechanical Engineers 1971
- Rivin, E.I. “Anti-Vibration Components and Devices,” in “Detali i mekhanizmi metallo-rezhuschikh stankov” (Components and Mechanisms of Machine Tools), “Mashinostroenie,” Moscow 1972
- Rivin, E.I. “Energy Dissipation and Dynamic Stiffness of Elasto-Damping Materials,” in “Rasseyanie energii pri kolebaniyakh uprugikh sistem” (Energy Dissipation During Vibration of Elastic Systems), “Naukova Dumka” Publishing House Kiev 383 389 1968
- Bernuchon, M. “A New Generation of Engine Mounts,” SAE Paper 840259 SAE 1984
- Muzechuk, R.A. “Hydraulic Mounts - Improved Engine Isolation,” SAE Paper 840410 SAE 1984
- Corcoran, P.E. Ticks, G.-H. “Hydraulic Engine Mount Characteristics,” SAE Paper 840407 SAE 1984
- Bachrach, B.I. Rivin, E.I. “Analysis of a Damped Pneumatic Spring,” Journal of Sound and Vibration 86 2 191 197 1983
- Schmitt, R.V. Leingang, Ch.J. “Design of Elastomeric Vibration Isolation Mounting Systems for Internal Combustion Engines,” SAE Paper 760431 SAE 1976
- Yamaguchi, J. “Toyota Corona Gets New Diesel and IRS,” Automotive Engineering 88 89 April 1982
- Rivin, E.I. “Servo-Coutrolled Vibration Isolators and Installation Systems,” NIIMASH Publishing House Moscow 80 1972