A compliant micro frequency quadrupler transmission utilizing singularity

Journal article (2018)

Authors

D. Farhadi Machekposhti Mechatronic Systems Design - Mechanical, Maritime and Materials Engineering

J.L. Herder Mechatronic Systems Design - Mechanical, Maritime and Materials Engineering

Just Herder Mechatronic Systems Design - Mechanical, Maritime and Materials Engineering

G. Semon TAG Heuer

N. Tolou Mechatronic Systems Design - Mechanical, Maritime and Materials Engineering

Department

Precision and Microsystems Engineering

Frequency multiplier Compliant mechanism Kinematics Force Actuators Frequency conversion Micromechanical devices Manufacturing processes Microelectromechanical systems Micro electromechanical systems (MEMS) Power transmission Singularity.

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Published Date

2018

Language

English

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Department

Precision and Microsystems Engineering

Abstract

This paper presents a method for the design of compliant micro transmission mechanisms which multiply the motion frequency of a cyclic input motion. Compliant embodiments are generated based on exploiting the singularity in a double-slider mechanism, which provides building blocks with a frequency multiplication factor of two. It is shown that the proposed building blocks can be concatenated for higher frequency multiplication ratios, and that the maximum number of blocks is limited by the desired travel range of the output. The input-output kinematics and the different stiffness characteristics of the building blocks are discussed based on pseudo-rigid-body model (PRBM). To validate the building block approach, a compliant micro transmission mechanism is presented which quadruples the frequency of a cyclic rectilinear input motion. Furthermore, a micro scale prototype was dimensioned and fabricated out of silicon using deep reactive ion etching to evaluate the design experimentally and validate the PRBM and finite element models. [2017-0318]

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