When disastrous earthquake occurs, the viscoelastic material reaches its shear limits and the friction device begins to slide, so the control effort of F-VED is the best.

• 在罕遇地震下粘弹性材料达到剪切极限，摩擦机构起滑，故粘弹性-摩擦阻尼器的减振效果最好。