Power flow and energy balance of non-conservatively coupled structures, I: Theory

✍ Scribed by J.C. Sun; N. Lalor; E.J. Richards

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 478 KB
• Volume: 112
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1016/s0022-460x(87)80199-2

✦ Synopsis

The broad-band power flow between two non-conservatively coupled oscillators, excited by forces which have fiat spectra in a frequency region tot < to < to u and have small values outside that region, has been examined. It is shown that the power flow is not only proportional to the difference between the broad-band energies of the oscillators since it also depends on their absolute values. In addition the absolute values of power flow in each direction are not identical. The investigations ofpower balance and energy distribution in the two-oscillator systems have shown that the form of the modified energy balance equations is the same as that used for conservatively coupled systems, but the terms involving both internal loss factors and coupling loss factors are altered because of the coupling damping. However, the effect of the coupling damping on the power flow between two coupled continuous structures is negligible.