单自由度有阻尼系统在简谐激励作用下，其方程为<img src="https://static.zxtiku.com/wangke/imgs/topic/a372be8c4ad6c8da7d0ab1f3e4ee4144.png"/>，初始条件为<img src="https://static.zxtiku.com/wangke/imgs/topic/ad64c426b75c8b41303cff71c8e25072.png"/><img src="https://static.zxtiku.com/wangke/imgs/topic/7788be09c82acbf013c42442d638c183.png"/>，则响应<img src="https://static.zxtiku.com/wangke/imgs/topic/11921b6c399697ea452b31d42f964992.png"/>为<br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/f86b26972650099d33e96fc01486c206.png"/><br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/66f915a1ce67202b9dc98ee0662d6c58.png"/><br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/da9a40e0ab535c3ac582ab35584ce261.png"/><br/> 下列说法不正确的是