On the Harmonic Response of Non- Proportionally Damped Structures

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The Role of Damping in Vibration and Noise Control_On the Harmonic Response of Non-Proportionally Damped Structures_1987.pdf

Date

1987-9

Author

Özgüven, Hasan Nevzat

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Although the response of a proportionally damped structure can easily be determined by modal analysis, the prediction of the response of a non-proportionally damped structure requires either more expensive computations or some approximations. Approximate methods cannot predict the in-phase components of harmonic responses accurately around a resonance. However, it has been shown in previous studies that in-phase components may dominate the harmonic displacement at some points when the system is excited around a resonance. In this study the spacewise distribution of in-phase components of harmonic responses of non-proportionally damped structures, and of the contribution of these components to total responses are studied. The effects of damping level, non-proportionality and the exciting frequency are shown by using the numerical results obtained for several non-proportionally damped fixed-fixed beams.

Subject Keywords

Vibrations

URI

https://hdl.handle.net/11511/105168

Conference Name

Presented at the 1987 ASME Design Technology Conferences - 11th Biennial Conference on Mechanical Vibration and Noise

Collections

Department of Mechanical Engineering, Conference / Seminar

Citation Formats

H. N. Özgüven, “On the Harmonic Response of Non- Proportionally Damped Structures,” The Ohio State University, Columbus, Ohio, 1987, vol. 5, p. 117, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/105168.