A novel frequency match method for resonant-type smooth impact drive mechanism with Langevin transducer

Xu Wu; Chengliang Pan; Qi Zhu; Aowei Liu; Haojie Xia

doi:10.1117/12.3032419

13 September 2024 A novel frequency match method for resonant-type smooth impact drive mechanism with Langevin transducer

Xu Wu, Chengliang Pan, Qi Zhu, Aowei Liu, Haojie Xia

Author Affiliations +

Proceedings Volume 13178, Eleventh International Symposium on Precision Mechanical Measurements; 131780F (2024) https://doi.org/10.1117/12.3032419
Event: Eleventh International Symposium on Precision Mechanical Measurements, 2023, Guangzhou, China

Abstract

Resonant-type smooth impact drive mechanism (RSIDM) uses the resonant vibrations of piezoelectric transducer to synthesize approximate saw-tooth wave vibration with high frequency and amplitude, which extends the driving state of piezoelectric impact motor (PIM) from quasi-static state to resonant state with great increase of power driving capability. The key and difficulty for the design of RSIDMs is to seek out two available natural vibration modes and match their resonant frequencies with desired ratio. Although the material and structural parameters can be theoretically and numerically analyzed to obtain the exact ratio of resonant frequencies, there might be a significant gap in the actual situation due to material differences and manufacturing tolerances. A flexible method for the adjustment of frequency ratio is still a critical matter that requires to be solved. This paper proposes a symmetrical structure of Langevin transducer for the RSIDM with a simple frequency match method. The first and second longitudinal vibration modes in the free condition are used to synthesize the resonant saw-tooth wave vibrations in the ends of the transducer. The resonant frequency ratio of the two vibration modes is naturally close to the desired ratio of 1:2. By replacing the materials at the nodes of the two vibration modes, equivalent stiffnesses and masses of two vibration modes are changed in the opposite direction, which lead to a considerable adjusting range of the resonant frequency ratio around 1:2. With finite element simulation, the results of frequency adjustment process is carried out and the effectiveness of frequency match method is validated.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xu Wu, Chengliang Pan, Qi Zhu, Aowei Liu, and Haojie Xia "A novel frequency match method for resonant-type smooth impact drive mechanism with Langevin transducer", Proc. SPIE 13178, Eleventh International Symposium on Precision Mechanical Measurements, 131780F (13 September 2024); https://doi.org/10.1117/12.3032419

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Vibration

Oscillators

Transducers

Aluminum

Finite element methods

Structural materials

Design

Show All Keywords

Keywords/Phrases

Search In:

Publication Years