Publication detail

TIME-DOMAIN SIMULATIONS OF GROOVING PROCESS WITH STIFFNESS UNCERTANTITIES

HADRABA, P. SVOBODOVÁ, M. LIN, H. HADAŠ, Z.

Original Title

TIME-DOMAIN SIMULATIONS OF GROOVING PROCESS WITH STIFFNESS UNCERTANTITIES

Type

conference paper

Language

English

Original Abstract

In the world of nonlinear dynamics, it is necessary to consider the fact that a small change of input parameter can cause large changes in results. However, several methods deal with uncertainty. This paper compares two methods for uncertainty analysis, polynomial chaos expansion, and Monte Carlo method. The analysis was performed on the structure of the machine tool slide. The two main components - linear roller guideway with preload and linear ball screw, they both present with the nonlinear characteristic. The stiffness of these components is dependent on the deformation as well as the direction of load. The results of both methods match reasonably in a stable condition. For the unstable machining should be surrogated model improve for further analysis. The main advantage of PCE is a shorter computation time in contrast to time-consuming MC. This approach enables not only the stimulation of the machining process in local conditions but in the future, it might be also extended for the analysis of machine tool stability in the full condition range.

Keywords

Polynomial chaos expansion; Monte Carlo; Turning model; Uncertainty analysis; Nonlinear stiffness

Authors

HADRABA, P.; SVOBODOVÁ, M.; LIN, H.; HADAŠ, Z.

Released

24. 11. 2020

Publisher

BRNO UNIV TECHNOL, FAC MECHANICAL ENGINEERING

Location

BRNO

ISBN

978-80-214-5896-3

Book

ENGINEERING MECHANICS 2020

ISBN

1805-8256

Periodical

Engineering Mechanics ....

Year of study

26

Number

2020

State

Czech Republic

Pages from

178

Pages to

181

Pages count

4

URL

https://www.engmech.cz/im/proceedings/show_p/2020/178

BibTex

@inproceedings{BUT177051,
  author="HADRABA, P. and SVOBODOVÁ, M. and LIN, H. and HADAŠ, Z.",
  title="TIME-DOMAIN SIMULATIONS OF GROOVING PROCESS WITH STIFFNESS UNCERTANTITIES",
  booktitle="ENGINEERING MECHANICS 2020",
  year="2020",
  journal="Engineering Mechanics ....",
  volume="26",
  number="2020",
  pages="178--181",
  publisher="BRNO UNIV TECHNOL, FAC MECHANICAL ENGINEERING",
  address="BRNO",
  doi="10.21495/5896-3-178",
  isbn="978-80-214-5896-3",
  issn="1805-8256",
  url="https://www.engmech.cz/im/proceedings/show_p/2020/178"
}