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Sustainable Automotive Technologies 2014 pp 41–56Cite as

Sustainable Flat Ride Suspension Design

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Part of the book series: Lecture Notes in Mobility ((LNMOB))

Abstract

Maurice Olley suggested that having natural frequency of the front approximately 80 % of that of the rear suspension in a vehicle will result in a flat ride for the passengers. Flat Ride in this case means that the pitch motion of the vehicle, generated by riding over a bump for instance will fade into the bounce motion of the vehicle much faster. Bounce motion of the vehicle in mush easier to tolerate and feels more comfortable for the passengers. In a previous study which is shortly mentioned in this paper the authors, analytically proved that this situation is not practical. In other words, for any vehicle there will only be one certain velocity, depending on the geometry and suspension system specifications which the flat ride will happen at. The search continued to find a practical method for enjoying the flat ride in vehicles. Solving the equation of motion of the vehicle for different spring rates and situation the authors came up with design chart for smart suspension systems. Using the advantages of the analytical approach to the flat ride problem, the chart was established to be used for vehicles with smart active suspension systems. In this paper the mathematical methods used and the resulted criteria for designing a flat ride suspension system which will perform in different speeds is presented.

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Author information

Authors and Affiliations

  1. School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Melbourne, Australia

    Hormoz Marzbani, Reza N. Jazar & M. Fard

Authors
  1. Hormoz Marzbani
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  2. Reza N. Jazar
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  3. M. Fard
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Corresponding author

Correspondence to Hormoz Marzbani .

Editor information

Editors and Affiliations

  1. Applied Mechanics, Chalmers University of Technology, Goteborg, Sweden

    Ingemar Denbratt

  2. School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Bundoora, Australia

    Aleksandar Subic

  3. Faculty of Mechanical Engineering, Technische Hochschule Ingolstadt, Ingolstadt, Germany

    Jörg Wellnitz

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© 2015 Springer International Publishing Switzerland

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Marzbani, H., Jazar, R.N., Fard, M. (2015). Sustainable Flat Ride Suspension Design. In: Denbratt, I., Subic, A., Wellnitz, J. (eds) Sustainable Automotive Technologies 2014. Lecture Notes in Mobility. Springer, Cham. https://doi.org/10.1007/978-3-319-17999-5_4

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  • DOI: https://doi.org/10.1007/978-3-319-17999-5_4

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-17998-8

  • Online ISBN: 978-3-319-17999-5

  • eBook Packages: EngineeringEngineering (R0)

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