用于bouc-wen模型，非常好用，是个好帮手-For bouc-wen model, very easy to use, it is a good helper

BoucWen滞环曲线的s函数,在simulink中建立模型添加输入即可得到滞环曲线-BoucWen hysteresis curve s function, enter simulink model add the hysteresis curve can be obtained