Acceleration smoothing algorithm based on jounce limited for corner motion in high-speed machining

Acceleration smoothing algorithm based on jounce limited for corner motion in high-speed machining In high-speed and high precision machining, cornering acceleration profiles of the feed motion are always not smooth enough and cause severe inertial vibrations in feed drive system, which severely affect machining quality and elongate machining time. In view of this problem, many experts and scholars have proposed kinematic corner smoothing algorithms based on the jerk limited acceleration profile from the perspective of kinematics that generate continuous acceleration transition profiles. But continuous acceleration profiles still have non-differentiable points. In order to further generate smooth and continuous acceleration transition profiles, an acceleration smoothing algorithm based on the jounce limited acceleration profile is proposed in this paper. Firstly, by adding different velocity, acceleration, and displacement boundary conditions to the jounce limited acceleration profile and combined with user-specified contour error, the fastest cornering velocity is deduced. Next, by the fastest cornering velocity and motion performance of the motor driver, the cornering duration is deduced. Finally, smooth acceleration and velocity transition profiles can be controlled analytically by accurately calculating cornering duration. The proposed algorithms are divided into interrupted acceleration smoothing algorithm and uninterrupted acceleration smoothing algorithm based on additional different acceleration boundary conditions. Through the experimental analysis and comparison, the proposed algorithms can reduce overall machining time around 6–7% and deliver curvature smoothing motion profiles, curvature continuous velocity profiles, and tangent continuous acceleration profiles. The proposed algorithms achieve smooth acceleration transitions and improve machining quality. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Acceleration smoothing algorithm based on jounce limited for corner motion in high-speed machining

Loading next page...
 
/lp/springer_journal/acceleration-smoothing-algorithm-based-on-jounce-limited-for-corner-JKkgEwUYxv
Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer-Verlag London Ltd.
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-017-1272-3
Publisher site
See Article on Publisher Site

Abstract

In high-speed and high precision machining, cornering acceleration profiles of the feed motion are always not smooth enough and cause severe inertial vibrations in feed drive system, which severely affect machining quality and elongate machining time. In view of this problem, many experts and scholars have proposed kinematic corner smoothing algorithms based on the jerk limited acceleration profile from the perspective of kinematics that generate continuous acceleration transition profiles. But continuous acceleration profiles still have non-differentiable points. In order to further generate smooth and continuous acceleration transition profiles, an acceleration smoothing algorithm based on the jounce limited acceleration profile is proposed in this paper. Firstly, by adding different velocity, acceleration, and displacement boundary conditions to the jounce limited acceleration profile and combined with user-specified contour error, the fastest cornering velocity is deduced. Next, by the fastest cornering velocity and motion performance of the motor driver, the cornering duration is deduced. Finally, smooth acceleration and velocity transition profiles can be controlled analytically by accurately calculating cornering duration. The proposed algorithms are divided into interrupted acceleration smoothing algorithm and uninterrupted acceleration smoothing algorithm based on additional different acceleration boundary conditions. Through the experimental analysis and comparison, the proposed algorithms can reduce overall machining time around 6–7% and deliver curvature smoothing motion profiles, curvature continuous velocity profiles, and tangent continuous acceleration profiles. The proposed algorithms achieve smooth acceleration transitions and improve machining quality.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Nov 10, 2017

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off