It is crucial to detect the working state of a propeller shaft in real time. as its vibration affects the safety of the marine propulsion system directly. With the difficulty of obtaining an accurate signal due to the particularity of propeller shaft. a suitable method for estimating the vibration response of propeller shaft is proposed in this paper. https://www.spidertattooz.com/The-GelBottle-Inc-Gel-Polish-Audrey-67oz-p17921/