Muster, Douglas F.2022-10-062022-10-06196913829532https://hdl.handle.net/10657/12079An experimental study concerned with the role and effect of damping for a rotating flexible shaft in the region of a critical speed is conducted. The existing theory (1) is reviewed for a rotating system with an unbalanced disk in the center of a flexible shaft. The effect of damping on the system is discussed. The experimental results reveal that the external damping plays a role which is taken properly into account by the existing theory. In contract, internal damping does not affect the rotating system in the region of the critical speed.application/pdfenThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.Thesisreformatted digital