Affordable Access

Publisher Website

Motion behavior of triangular waveform excitation input in an operating impact drive mechanism

Authors
Journal
Sensors and Actuators A Physical
0924-4247
Publisher
Elsevier
Publication Date
Volume
166
Issue
1
Identifiers
DOI: 10.1016/j.sna.2010.12.008
Keywords
  • Impact Drive Mechanism (Idm)
  • Stepping Motion
  • Step Size
  • Motion Behavior
  • Piezoelectric Actuator
Disciplines
  • Design

Abstract

Abstract Stable stepping motion from mechanical excitation of a piezoelectric device is generated using the impact drive mechanism (IDM) based on various triangular waveforms exerted by the counter mass speed. However, stick-slip behavior originating from the contact friction between the movable part and the guide surface poses an obstacle for precise modeling. Therefore, this work presents a concise impulse model for mechanism control of stepping motion behavior. The proposed impulse model incorporates the duty ratio and input frequency of the triangular waveform of counter mass relative displacement as the system input and outputs the estimated step size and the behavior of the stepping motion. An enhanced version of the dynamic model and our experimental results validate the efficacy of the proposed model. An adequate design and control of IDM motion is highly promising for use in nano-scale positioning.

There are no comments yet on this publication. Be the first to share your thoughts.