Abstract
We introduce a novel type of the nonlinear energy sink (NES) designed as an eccentric mass rotating within a horizontal plane. The gravity is not a factor here, therefore such a rotator has no eigenfrequency and can inertially couple and resonate with any mode of the primary system. The dynamics of the system consisting of a primary linear oscillator and the eccentric rotator is rich beyond expectations and features multiple resonances and chaotic modes. A numerical study shows that the system, when subject to high impulsive loads, inevitably enters a 1:1 resonance that enables highly efficient targeted energy transfer from the primary mass to the NES. The results of an experimental investigation are in good agreement with the analytical and numerical estimates.
| Original language | English (US) |
|---|---|
| Title of host publication | ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011 |
| Pages | 369-379 |
| Number of pages | 11 |
| Edition | PARTS A AND B |
| DOIs | |
| State | Published - Dec 1 2011 |
| Event | ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011 - Washington, DC, United States Duration: Aug 28 2011 → Aug 31 2011 |
Publication series
| Name | Proceedings of the ASME Design Engineering Technical Conference |
|---|---|
| Number | PARTS A AND B |
| Volume | 1 |
Other
| Other | ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011 |
|---|---|
| Country | United States |
| City | Washington, DC |
| Period | 8/28/11 → 8/31/11 |
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ASJC Scopus subject areas
- Modeling and Simulation
- Mechanical Engineering
- Computer Science Applications
- Computer Graphics and Computer-Aided Design
Cite this
An eccentric rotator as a novel design of a nonlinear energy sink. / Gendelman, Oleg V.; Sigalov, Grigori; Mane, Mercedes; Bergman, Lawrence A.; Vakakis, Alexander F.; Manevitch, Leonid I.
ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011. PARTS A AND B. ed. 2011. p. 369-379 (Proceedings of the ASME Design Engineering Technical Conference; Vol. 1, No. PARTS A AND B).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - An eccentric rotator as a novel design of a nonlinear energy sink
AU - Gendelman, Oleg V.
AU - Sigalov, Grigori
AU - Mane, Mercedes
AU - Bergman, Lawrence A.
AU - Vakakis, Alexander F.
AU - Manevitch, Leonid I.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - We introduce a novel type of the nonlinear energy sink (NES) designed as an eccentric mass rotating within a horizontal plane. The gravity is not a factor here, therefore such a rotator has no eigenfrequency and can inertially couple and resonate with any mode of the primary system. The dynamics of the system consisting of a primary linear oscillator and the eccentric rotator is rich beyond expectations and features multiple resonances and chaotic modes. A numerical study shows that the system, when subject to high impulsive loads, inevitably enters a 1:1 resonance that enables highly efficient targeted energy transfer from the primary mass to the NES. The results of an experimental investigation are in good agreement with the analytical and numerical estimates.
AB - We introduce a novel type of the nonlinear energy sink (NES) designed as an eccentric mass rotating within a horizontal plane. The gravity is not a factor here, therefore such a rotator has no eigenfrequency and can inertially couple and resonate with any mode of the primary system. The dynamics of the system consisting of a primary linear oscillator and the eccentric rotator is rich beyond expectations and features multiple resonances and chaotic modes. A numerical study shows that the system, when subject to high impulsive loads, inevitably enters a 1:1 resonance that enables highly efficient targeted energy transfer from the primary mass to the NES. The results of an experimental investigation are in good agreement with the analytical and numerical estimates.
UR - http://www.scopus.com/inward/record.url?scp=84863561544&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863561544&partnerID=8YFLogxK
U2 - 10.1115/DETC2011-47764
DO - 10.1115/DETC2011-47764
M3 - Conference contribution
AN - SCOPUS:84863561544
SN - 9780791854785
T3 - Proceedings of the ASME Design Engineering Technical Conference
SP - 369
EP - 379
BT - ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2011
ER -