CAJ | 학술논문

推导了 TMD 系统的相位公式，研究了各参数对相位差及减震效果的影响。结果表明当 TMD 选取最优频率比与最优阻尼比时具有最优控制效果。TMD 质量比的增大不仅有助于增加控制效果，而且提高了频域内的控制鲁棒性。此外，本文提出了相能原理并结合能量耗散相等的原理给出了 TMD 的等效阻尼比，该数值比白噪声激励下推导的等效阻尼比更加符合 TMD 系统的实际情况。
추도료 TMD 계통적상위공식，연구료각삼수대상위차급감진효과적영향。결과표명당 TMD 선취최우빈솔비여최우조니비시구유최우공제효과。TMD 질량비적증대불부유조우증가공제효과，이차제고료빈역내적공제로봉성。차외，본문제출료상능원리병결합능량모산상등적원리급출료 TMD 적등효조니비，해수치비백조성격려하추도적등효조니비경가부합 TMD 계통적실제정황。
Here,the phase formulas of a TMD control system were derived.The effects of parameters on phase difference and vibration reduction result were investigated.Both the frequency band of vibration reduction and the distribution of phase difference change with parameters were indicated.The results showed that the comprehensive optimal control effect of TMD is obtained with the optimal damping ratio and the optimal frequency ratio;the increase in mass ratio of TMD can improve both the control performance and control robustness.In addition,the theory of phase energy combined with the principle of energy dissipation was employed to obtain the equivalent damping ratio of TMD.It was shown that the proposed equivalent damping ratio is more reasonable than that deduced under the excitation of white noise.