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http://hdl.handle.net/2080/2761
Title: | Comprehensive study on a functionally graded Carbon Nanotube reinforced dielectric elastomeric nanocomposite microbeam resonator |
Authors: | Kumar, Puneet Srinivas, J |
Keywords: | Microbeam resonator Functionally graded material Halpin-Tsai mode Electrostatic actuation |
Issue Date: | Sep-2017 |
Citation: | Thirty-third National Convention of Mechanical Engineers on Advances in MEMS and Robotics in Manufacturing Industries, Udaipur, Rajastan, India, 01-02 September, 2017 |
Abstract: | Microelectro mechanical systems have widespread applications as sensing elements in manufacturing operations. Small scale, self-energizing sensors are very much required in the modern machining industries. This work presents use of functional graded nanopolymer composites as a microbeam sensing elements in milling application towards prediction of workpiece displacement. A model to investigate the dynamic-pull-in characteristics of a functionally carbon nanotube (FG-CNT) reinforced polymer composite microbeam is developed. Based Eular-Burnoulli theory the dynamic governing equation of an electrostatically actuated micro resonator is derived. The material properties of the FG-CNT composite microbeam are estimated using modified Halpin-Tsai model and rule of mixture. A squeeze film damping is accounted along with electrostatic actuation. The influences of voltage effect, volume fraction, and distribution of CNTs and initial amplitude on dynamic-pull-in behaviors of the microbeam are discussed. A dynamic model of machining process is considered to illustrate the relative motion sensed by the microbeam resonator. |
Description: | Copyright of this document belongs to proceedings publisher. |
URI: | http://hdl.handle.net/2080/2761 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2017_NCME_PKumar_Comprehensive.pdf | Conference Paper | 241.92 kB | Adobe PDF | View/Open |
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