發送短信 : Controller design for flexible structure vibration suppression with robustness to contacts

 __   _     _____      _____     ___      _____   
| || | ||  |  ___||   / ___//   / _ \\   /  ___|| 
| '--' ||  | ||__     \___ \\  / //\ \\ | // __   
| .--. ||  | ||__     /    // |  ___  ||| \\_\ || 
|_|| |_||  |_____||  /____//  |_||  |_|| \____//  
`-`  `-`   `-----`  `-----`   `-`   `-`   `---`