Abstract
In order to prevent noise generated from torsional resonance of multiblade fan, motor-driven by thyristor speed controller, the authors analyzed torsional natural vibration and frequency response of the fan shaft system, and elucidated the key points in design for vibration reduction. In analysis, it was assumed that the blades were beams, and the vibration system was a linear and branch shaft system, and transfer matrix method was used. For frequency response analysis, especially, material damping of each part of the system and damping due to solid friction of the bearings were considered. With regard to the validity of analysis, the experimental proof was done.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.