Numerical investigation of rotating nonlinear energy sink for shock mitigation

Mohammad A. AL-Shudeifat, Lawrence Bergman, Alexander F Vakakis

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

Abstract

Passive nonlinear targeted energy transfer (TET) is addressed here by investigating a lightweight rotating nonlinear energy sink (NES). The rotating sink mass has an essentially nonlinear inertial coupling with the two degree-offreedom linear system (the primary test structure). The proposed rotating NES is numerically investigated where it is found to passively absorb and rapidly dissipate a considerable portion of the initial energy induced by impulse to the linear structure. The parameters of the rotating NES are optimized for the best performance in the vicinity of intermediate and high loads. The fundamental mechanism for significant energy transfer to the NES is its rotational mode; the oscillatory mode of the NES dissipates far less energy. The frequency-energy dependences are investigated through the frequency-energy plot (FEP). Early and strong resonance capture at the lowest modal frequency is observed between the rotator and the structure, at which a significant portion of the induced energy is transferred and dissipated by the rotator. The performance of this device is found to be comparable to existing, stiffnessbased NES designs. However, this device is less complicated and more compact.

Original languageEnglish (US)
Title of host publication22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise
PublisherAmerican Society of Mechanical Engineers
ISBN (Print)9780791855997
DOIs
StatePublished - Jan 1 2013
EventASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2013 - Portland, OR, United States
Duration: Aug 4 2013Aug 7 2013

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume8

Other

OtherASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2013
CountryUnited States
CityPortland, OR
Period8/4/138/7/13

Fingerprint

Numerical Investigation
Energy transfer
Shock
Rotating
Energy
Linear systems
Dissipate
Energy Transfer
Strong Resonance
Impulse
Lowest
Linear Systems

ASJC Scopus subject areas

  • Modeling and Simulation
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

Cite this

AL-Shudeifat, M. A., Bergman, L., & Vakakis, A. F. (2013). Numerical investigation of rotating nonlinear energy sink for shock mitigation. In 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise (Proceedings of the ASME Design Engineering Technical Conference; Vol. 8). American Society of Mechanical Engineers. https://doi.org/10.1115/DETC2013-12773

Numerical investigation of rotating nonlinear energy sink for shock mitigation. / AL-Shudeifat, Mohammad A.; Bergman, Lawrence; Vakakis, Alexander F.

22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise. American Society of Mechanical Engineers, 2013. (Proceedings of the ASME Design Engineering Technical Conference; Vol. 8).

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

AL-Shudeifat, MA, Bergman, L & Vakakis, AF 2013, Numerical investigation of rotating nonlinear energy sink for shock mitigation. in 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise. Proceedings of the ASME Design Engineering Technical Conference, vol. 8, American Society of Mechanical Engineers, ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2013, Portland, OR, United States, 8/4/13. https://doi.org/10.1115/DETC2013-12773
AL-Shudeifat MA, Bergman L, Vakakis AF. Numerical investigation of rotating nonlinear energy sink for shock mitigation. In 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise. American Society of Mechanical Engineers. 2013. (Proceedings of the ASME Design Engineering Technical Conference). https://doi.org/10.1115/DETC2013-12773
AL-Shudeifat, Mohammad A. ; Bergman, Lawrence ; Vakakis, Alexander F. / Numerical investigation of rotating nonlinear energy sink for shock mitigation. 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise. American Society of Mechanical Engineers, 2013. (Proceedings of the ASME Design Engineering Technical Conference).
@inproceedings{45d349aa9a1d454eb09b8a7028101968,
title = "Numerical investigation of rotating nonlinear energy sink for shock mitigation",
abstract = "Passive nonlinear targeted energy transfer (TET) is addressed here by investigating a lightweight rotating nonlinear energy sink (NES). The rotating sink mass has an essentially nonlinear inertial coupling with the two degree-offreedom linear system (the primary test structure). The proposed rotating NES is numerically investigated where it is found to passively absorb and rapidly dissipate a considerable portion of the initial energy induced by impulse to the linear structure. The parameters of the rotating NES are optimized for the best performance in the vicinity of intermediate and high loads. The fundamental mechanism for significant energy transfer to the NES is its rotational mode; the oscillatory mode of the NES dissipates far less energy. The frequency-energy dependences are investigated through the frequency-energy plot (FEP). Early and strong resonance capture at the lowest modal frequency is observed between the rotator and the structure, at which a significant portion of the induced energy is transferred and dissipated by the rotator. The performance of this device is found to be comparable to existing, stiffnessbased NES designs. However, this device is less complicated and more compact.",
author = "AL-Shudeifat, {Mohammad A.} and Lawrence Bergman and Vakakis, {Alexander F}",
year = "2013",
month = "1",
day = "1",
doi = "10.1115/DETC2013-12773",
language = "English (US)",
isbn = "9780791855997",
series = "Proceedings of the ASME Design Engineering Technical Conference",
publisher = "American Society of Mechanical Engineers",
booktitle = "22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise",

}

TY - GEN

T1 - Numerical investigation of rotating nonlinear energy sink for shock mitigation

AU - AL-Shudeifat, Mohammad A.

AU - Bergman, Lawrence

AU - Vakakis, Alexander F

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Passive nonlinear targeted energy transfer (TET) is addressed here by investigating a lightweight rotating nonlinear energy sink (NES). The rotating sink mass has an essentially nonlinear inertial coupling with the two degree-offreedom linear system (the primary test structure). The proposed rotating NES is numerically investigated where it is found to passively absorb and rapidly dissipate a considerable portion of the initial energy induced by impulse to the linear structure. The parameters of the rotating NES are optimized for the best performance in the vicinity of intermediate and high loads. The fundamental mechanism for significant energy transfer to the NES is its rotational mode; the oscillatory mode of the NES dissipates far less energy. The frequency-energy dependences are investigated through the frequency-energy plot (FEP). Early and strong resonance capture at the lowest modal frequency is observed between the rotator and the structure, at which a significant portion of the induced energy is transferred and dissipated by the rotator. The performance of this device is found to be comparable to existing, stiffnessbased NES designs. However, this device is less complicated and more compact.

AB - Passive nonlinear targeted energy transfer (TET) is addressed here by investigating a lightweight rotating nonlinear energy sink (NES). The rotating sink mass has an essentially nonlinear inertial coupling with the two degree-offreedom linear system (the primary test structure). The proposed rotating NES is numerically investigated where it is found to passively absorb and rapidly dissipate a considerable portion of the initial energy induced by impulse to the linear structure. The parameters of the rotating NES are optimized for the best performance in the vicinity of intermediate and high loads. The fundamental mechanism for significant energy transfer to the NES is its rotational mode; the oscillatory mode of the NES dissipates far less energy. The frequency-energy dependences are investigated through the frequency-energy plot (FEP). Early and strong resonance capture at the lowest modal frequency is observed between the rotator and the structure, at which a significant portion of the induced energy is transferred and dissipated by the rotator. The performance of this device is found to be comparable to existing, stiffnessbased NES designs. However, this device is less complicated and more compact.

UR - http://www.scopus.com/inward/record.url?scp=84896975581&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84896975581&partnerID=8YFLogxK

U2 - 10.1115/DETC2013-12773

DO - 10.1115/DETC2013-12773

M3 - Conference contribution

AN - SCOPUS:84896975581

SN - 9780791855997

T3 - Proceedings of the ASME Design Engineering Technical Conference

BT - 22nd Reliability, Stress Analysis, and Failure Prevention Conference; 25th Conference on Mechanical Vibration and Noise

PB - American Society of Mechanical Engineers

ER -