Advertisement

NVH Development at Achates Power

  • Hasan G. PashaEmail author
  • Dnyanesh Sapkal
  • John Koszewnik
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Achates Power, Inc (API) has developed radically improved internal combustion engines that increase fuel efficiency, reduce greenhouse gas emissions and cost less than conventional engines. Achates Power has perfected the opposed-piston engine that enables to achieve the world’s most stringent current and future fuel efficiency, and emissions standards. The opposed-piston engine presents unique challenges in terms of structural design due to its construction. A sophisticated design process that encompasses advance modeling, simulation and testing facilities is necessary to deliver best-in-class NVH characteristics. Achates Power’s engine development is driven by a well-defined and efficient process to provide excellent noise, vibration and harshness (NVH) characteristics. This paper discusses the process followed and the infrastructure available at Achates Power to guide the NVH development.

Keywords

Opposed piston engine A48-3 NVH Verification and validation Modal testing Multi-body systems 

Notes

Acknowledgements

The authors would like to acknowledge the contributions and support from Chris Pesko of Achates Power and Siemens LMS Engineering Services.

References

  1. 1.
    Adamson, S.: Improved Approaches to the Measurement and Analysis of Torsional Vibration. SAE Technical Paper 2004-01-1723 (2004)Google Scholar
  2. 2.
    Derk, J.R.: Effects of compliant geartrains on engine noise and performance. Sound Vib. Mag. (2005)Google Scholar
  3. 3.
    Kistler: Product Specifications for Kistler 2614B Crank Angle Encoder. Kistler Instruments (2015)Google Scholar
  4. 4.
    Pirault, J.P., Flint, M.: Opposed Piston Engines: Evolution, Use, and Future Applications. SAE International, Warrendale, PA (2010)Google Scholar
  5. 5.
    Regner, G., Fromm, L., Johnson, D., Koszewnik, J., Dion, E., Redon, F.: Modernizing the Opposed Piston, Two Stroke Engine for Clean, Efficient Transportation. SAE Technical Paper 2013-26-0114 (2013)Google Scholar
  6. 6.
    Reinhart, T.E.: NVH Considerations in Engine Development, Encyclopedia of Automotive Engineering. Wiley, New York (2014)CrossRefGoogle Scholar
  7. 7.
    Selim, M.: Effect of exhaust gas recirculation on some combustion characteristics of dual fuel engine. Energy Convers. Manag. 44, 707–721 (2003)CrossRefGoogle Scholar
  8. 8.
    Stout, J.: Valvetrain Unbalance and Its Effects on Powertrain NVH. SAE Technical Paper 971993 (1997)Google Scholar
  9. 9.
    Vance, J.M., Zeidan, F., Murphy, B.: Machinery Vibration and Rotordynamics. Wiley, Hoboken, NJ (2010)CrossRefGoogle Scholar

Copyright information

© The Society of Experimental Mechanics, Inc. 2016

Authors and Affiliations

  • Hasan G. Pasha
    • 1
    Email author
  • Dnyanesh Sapkal
    • 1
  • John Koszewnik
    • 1
  1. 1.Achates Power, Inc.San DiegoUSA

Personalised recommendations