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Piezoelectric Driven Carbon Fiber Cilia Based Linear Actuators

Carrasco, Alvaro G. and Thiem, Daniel B. and Pott, Peter P. and Schlaak, Helmut F. :
Piezoelectric Driven Carbon Fiber Cilia Based Linear Actuators.
In: ACTUATOR 2018, 25.-27.06.2018, Bremen. ACTUATOR 2018: 16th International Conference on New Actuators, Bremen, Germany, 25–27 June 2018 Bremen
[Conference or Workshop Item] , (2018)

Abstract

Conversion of limited vibrational movements to a linear motion only limited by the length of bearings and contact surfaces is enabled by the anisotropic friction properties of tilted carbon fiber arrays. We present two linear actuators based on this principle driven by either parallel or orthogonal vibrations. The designed actuators are characterized using a specialized measurement setup which allows the measurement of driving force, reactive friction forces and drive speed. These parameters are influenced by the amplitude of the driving piezoelectric stack, its driving frequency and the material of the contacting surface. Drive speeds of up to 20 mm/s are measured for both actuator types and a linear dependency between driving frequency and drive speed is found. Our measurements show, that roughened PVC does exhibit the best friction properties with the carbon fiber arrays and should be used as contact surface for the presented actuators

Item Type: Conference or Workshop Item
Erschienen: 2018
Creators: Carrasco, Alvaro G. and Thiem, Daniel B. and Pott, Peter P. and Schlaak, Helmut F.
Title: Piezoelectric Driven Carbon Fiber Cilia Based Linear Actuators
Language: English
Abstract:

Conversion of limited vibrational movements to a linear motion only limited by the length of bearings and contact surfaces is enabled by the anisotropic friction properties of tilted carbon fiber arrays. We present two linear actuators based on this principle driven by either parallel or orthogonal vibrations. The designed actuators are characterized using a specialized measurement setup which allows the measurement of driving force, reactive friction forces and drive speed. These parameters are influenced by the amplitude of the driving piezoelectric stack, its driving frequency and the material of the contacting surface. Drive speeds of up to 20 mm/s are measured for both actuator types and a linear dependency between driving frequency and drive speed is found. Our measurements show, that roughened PVC does exhibit the best friction properties with the carbon fiber arrays and should be used as contact surface for the presented actuators

Title of Book: ACTUATOR 2018: 16th International Conference on New Actuators, Bremen, Germany, 25–27 June 2018
Place of Publication: Bremen
Uncontrolled Keywords: Anisotropic Friction, Actuator, Piezo Stack, Lever Structure, Stepper Motor
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design
18 Department of Electrical Engineering and Information Technology > Institute for Electromechanical Design > Microtechnology and Electromechanical Systems
Event Title: ACTUATOR 2018
Event Location: Bremen
Event Dates: 25.-27.06.2018
Date Deposited: 29 Jun 2018 12:29
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