Forced response analysis and application of impact dampers to rotordynamic vibration suppression in a cryogenic environment Conference Paper uri icon


  • A high speed damper test rig has been assembled at Texas A&M University to develop rotordynamic dampers for rocket engine turbopumps that operate at cryogenic temperatures, such as those used in the Space Shuttle Main Engines (SSMEs). Damping is difficult to obtain in this class of turbomachinery due to the low temperature and viscosity of the operating fluid. An impact damper has been designed and tested as a means to obtain effective damping in a rotorbearing system. The performance and behavior of the impact damper is verified experimentally in a cryogenic test rig at Texas A& M. Analytical investigators indicate a strong amplitude dependence on the performance of the impact damper.

published proceedings

  • American Society of Mechanical Engineers, Design Engineering Division (Publication) DE

author list (cited authors)

  • Moore, J. J., Palazzolo, A., Gadangi, R., Nale, T. A., & Klusman, S. A.

complete list of authors

  • Moore, JJ||Palazzolo, A||Gadangi, R||Nale, TA||Klusman, SA

publication date

  • December 1993