一、前言大型电液振动台在铁道桥梁、土木建筑、航空、宇航等部门中是进行振动试验、抗震性能研究的重要设备。对于大型试件,为获得最大的推力或特殊试验的需要(例如桥梁)则要用多台同步激振,目前我国对大型同步台的振动最优控制研究尚很少。 I. Introduction Large electro-hydraulic shaking table in railway bridges, civil engineering, aviation, aerospace and other departments is the vibration test, an important device for seismic study. For large specimens, multiple simultaneous excitation is needed to obtain maximum thrust or special test (such as bridges). At present, the research on optimal vibration control of large synchronous stations in our country is still rare.