Journal Papers

  • Haidar, A. M. and J. Palacios, “A general model for passive balancing of supercritical shafts with experimental validation of friction and collision effects,” Journal of Sound and Vibration, 384 (2016) 273–293. Download Purchase

Conference Papers

  • Haidar, A. M. and J. Palacios, “Improvement to the Ball-type Passive Balancer at Transient and Subcritical Shaft Speeds,” 59th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech Forum. Jan 2018. Pending…
  • Haidar, A. M. and J. Palacios, “Experimental Model Validation of a Passive Balancing Device for Supercritical Helicopter Driveshafts,” American Helicopter Society Forum 72, May 2016. Download Purchase
  • Haidar, A. M. and J. Palacios, “Passive Rotor Blade Balancing System for Unsymmetrical Ice Accretion,” American Institute of Aeronautics and Astronautics Region I Student Conference, 25 April 2014. Download lock


  • Haidar, A. M. (2015), “Comprehensive Model and Experimental Validation of Passive Vibration Suppression for Supercritical Rotary Machines,” M.S. thesis, Pennsylvania State University. Download