Active vibration control of axially functionally graded cantilever beams by finite element method

2021 ◽  
Author(s):  
Priyankar Datta
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Vibration Control ◽  
Active Vibration Control ◽  
Functionally Graded ◽  
Cantilever Beams ◽  
Active Vibration ◽  
Element Method

scholarly journals Active vibration control of a conical shell using piezoelectric ceramics

2017 ◽  
Vol 36 (4) ◽  
pp. 366-375 ◽  
Author(s):  
Longfei Sun ◽  
Weijia Li ◽  
Yaozhong Wu ◽  
Qiuhua Lan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Vibration Control ◽  
Shell Structure ◽  
Conical Shell ◽  
Sliding Mode ◽  
Active Vibration Control ◽  
Sliding Mode Controller ◽  
Fuzzy Sliding Mode ◽  
Active Vibration

Conical shell structures are commonly used in many engineering systems, and vibration suppression is very important to realize the desired function. In this study, piezoelectric ceramics were used as actuators/sensors with a multimodal fuzzy sliding mode controller to suppress vibrations of conical shell structure for the first time. The structure’s natural frequencies and mode shapes were obtained through modal analysis using finite element method and verified by modal tests. The agreement between analysis and test results verified the finite element method was appropriate. A multimodal fuzzy sliding mode controller was subsequently designed based on the analysis to provide active vibration control. The resulting controller was tested experimentally for the conical shell structure. The experimental results indicated that the proposed controller can effectively use to suppress vibration for the conical shell structure.

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