Vibration Control of Rotor Systems by Experimental Design

• Main Authors: Sheu, Geeng-Jen, 許耿禎
• Other Authors: Yang Shih-Ming, Yang Ciann-Dong
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/41759694911968031949

博士 === 國立成功大學 === 航空太空工程學系 === 84 === The dynamics and vibration of rotating systems are of fundamentalimportance in the design of rotating machinery. In order to preventfrom excessive vibration, analyses of the natural frequencies,commonly called the whirl speeds, and mode shapes are required inpredicting the resonant and forced responses. In particular, thesynchronous whirl speed, also called the critical speed, is ofprimary concern because the unbalanced excitation is synchronouswith the rotating speed. Dynamics and control of rotor systems bothin distributed and discrete parameter models are studied in thisdissertation. A controller design methodology forvibration suppression is developed in discrete parameter model. Themethodology combines the experimental design method in qualitycontrol engineering and the conventional PD control technique suchthat their advantages in implementation feasibility and performancerobustness can be integrated together. By using the location of thesensor/actuator and PD feedback gains as the design variables, thecontroller can be determined by a small number of matrix experimentsto achieve best system performance.