Effect of number of tracks and balancing masses on passive balancing performance

Ahmad M. Haidar, Jose L. Palacios

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Passive balancing devices consist of two or more masses that are free to move along a circular race that is concentric with the geometric center of a shaft. At supercritical rotor speeds, past the first bending critical mode of the shaft, they exhibit the unique autonomous behavior of repositioning themselves in a way that can significantly reduce or eliminate vibrations due to rotor mass imbalances. The automatic balancing is a result of the dynamic relationship between the balancing mass positions and in-plane vibrations. This work characterizes the response of a passive balancing device in various configurations and in multiple shaft speed conditions. The effect of the number of concentric tracks and number of balancing masses per track is investigated numerically using a verified model where friction and mass collisions are considered. Results suggest that for a realistic system that includes rolling resistance, a 1-track configuration with any number of masses is ideal and yields lower vibration amplitudes when compared to other configurations.

Original languageEnglish (US)
Title of host publicationAIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Edition210049
ISBN (Print)9781624105326
DOIs
StatePublished - Jan 1 2018
EventAIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018 - Kissimmee, United States
Duration: Jan 8 2018Jan 12 2018

Publication series

NameAIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
Number210049

Other

OtherAIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
CountryUnited States
CityKissimmee
Period1/8/181/12/18

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Architecture

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