Damping Enhancement and Positioning Control of Compliant Stages by Incorporating Rubber Shear Dampers

Yi Hsuan Yula, Kung Han Lee, Kuo Shen Chen, Yun Hui Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Metal compliant stages are critical subsystems in numerous precision motion control applications. By incorporating feedback control, their performance can be further improved. However, metals have inherently very low damping and it may difficult to add external passive dampers. Such a low damping capability would limit the effectiveness of controller design and even cause instability. As a result, how to effectively enhancing damping capability of compliant stage under space constraint is a non-trivial issue in precision positioning control. In this work, we propose the use of PDMS rubber shear damper to enhance the effective material damping of compliant structures. The effect of PDMS dimension on the resulted damping capability is then investigated by both 3D printed plastic and wire-cut metallic testing structures. The experimental results indicate that the PDMS materials can indeed enhance the damping ratios. Finally, a plastic 3D printed compliant stage is designed as a prototype for validating the design in stage control. The experimental results indicated that the controlled performance is indeed improved by incorporated with PDMS shear damper. With the concept validated, it is possible to implement rubber shear dampers in real metallic compliant structure for enhancing their performance. Ultimately, it is also possible to integrate this concept with metallic 3D printing technology to achieve light weight, high stiffness, and high damping structures.

Original languageEnglish
Title of host publication2018 57th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages533-538
Number of pages6
ISBN (Electronic)9784907764609
DOIs
Publication statusPublished - 2018 Oct 15
Event57th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2018 - Nara, Japan
Duration: 2018 Sep 112018 Sep 14

Publication series

Name2018 57th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2018

Other

Other57th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2018
CountryJapan
CityNara
Period18-09-1118-09-14

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Control and Optimization
  • Instrumentation

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    Yula, Y. H., Lee, K. H., Chen, K. S., & Liu, Y. H. (2018). Damping Enhancement and Positioning Control of Compliant Stages by Incorporating Rubber Shear Dampers. In 2018 57th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2018 (pp. 533-538). [8492683] (2018 57th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/SICE.2018.8492683