issue with sliding mesh
 

http://ww2.sinaimg.cn/small/50a6c7a3...20cl0h8q7w.jpghttp://ww4.sinaimg.cn/small/50a6c7a3...20dt0dq74u.jpg
as the image shows,i want to simulation the weak through the bar' translation,the setting of the sliding mesh as the image shows:
http://ww4.sinaimg.cn/small/50a6c7a3...20k00i6tan.jpghttp://ww4.sinaimg.cn/small/50a6c7a3...20n60gz0uu.jpg
is this right??