Optimal and Fuzzy Vibration Control of Cable Cars Using Active Tendons

• Main Authors: Shu-Chuan Pan, 潘淑娟
• Other Authors: Li-Jeng Huang
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/01646066468293503487

碩士 === 國立高雄應用科技大學 === 土木工程與防災科技研究所 === 97 === Cable car systems are developed rapidly for scenery tour and traveling in recent years and thus the safety and comfort becomes an important design consideration. Mau-Kung Cable Car System had been built and run successfully and there might have a newly cable car system connecting Kaohsiung City with Chi-Jing and thus the similar cable car system connecting Singapore with Santosa becomes a good example to learn. This thesis is proposed to study the dynamic behavior of the Cable Car System of Singapore under various excitations and further to investigate the feasibility of applying active tendons to vibration control of the cable car systems. Rigid body models are employed and two degrees of freedom are considered, i.e., horizontal displacement and pitching angle of the cable car. In this thesis dynamic equations of uncontrolled and controlled cable car systems are erected first and then were transformed into state space description and finally were solved via Runge-Kutta numerical algorithm for the dynamic responses under various loadings such as free vibrations, step-inputs, harmonic excitations and ground motions. In the passive control study the parameters of the tendons were adjusted to investigate their effects, while in the active control the optimal and fuzzy control laws were tested and conducted in order to find some effective control logics. It was found that passive tendons seems to ineffectively suppress the vibration while active tendons can be employed to diminish some vibrations caused by various dynamic loadings if the parameters (such as [Q], [R] in optimal control and membership functions and rule banks in fuzzy control) were designed well.