沈金  唐锦春  孙柄楠
    （浙江大学  杭州 3100270

[提要]  多个单体结构之间通过联接体结构以一定控制器互相联接，就形成了多结构振动控制体系。作者建立了联体多结构体系的振动方程，联接体作为一个附加质点加以考虑。运用快速coc法计算阻尼矩阵不满足正交条件的联体多结构体系在随机地震动激励下动反应的谱密度矩阵。最后讨论了影响控制效果的因素及控制器参数的优化问题。
[关键词]  联体多结构体系  振动控制  快速coc法  谱密度  参数优化

The conncctcd multi-structure vibration control systcm is a systcm of scvcral structurcs, which is conncctcd by conncction structurcs with controllcrs. The motion cquation of conncctcd multi-structure vibration control systcm is cstablishcd, while the conncction structure is rcgardcd as an attachcd mass. A fast CQC algorithm is applicd to calculate the PSD matrices of random rcsponscs of conncctcd multi-structure systcm with non-orthogonal damping matrix undcr carthquake cxcitation. The cxamplcs show the cffcctivcncss of the control systcm. The influcnce factors of control systcm arc invcstigatcd. Finally, optimization for paramctcr of the control systcm is discusscd.
Keywords: conncctcd multi-structure systcm; vibration control; fast coc algorithm; PSD; paramctcr optimization