Static condensation in modeling roller guides with preload

• Autorzy: Dunaj Paweł , Berczyński Stefan , Pawełko Piotr , Grządziel Zenon , Chodźko Marcin

Identyfikatory

DOI

10.1016/j.acme.2019.06.005

• Języki publikacji: EN

Abstrakty

EN

This article presents the methodology for modeling the stiffness of a machine tool load-bearing system using the finite element method. A new, simplified model of stiffness of the linear guide with a preload based on equivalent contact model was proposed. An equivalent contract model was developed where the ball was replaced with four rod elements of equivalent stiffness, interconnecting the opposite ends of the face of cuboidal finite ele- ments. To shorten the computation time and facilitate modeling reduction and substructur-ing methods was used. The accuracy of the proposed model was compared with experimental results. In addition, the computation times were evaluated by comparing the simplified model with the full model and other equivalent models. Then, the model was used to determine the stiffness of the machine load-bearing system on the example of a machining table using the aforementioned methods and the obtained results were com-pared in terms of accuracy (less than 1% difference in maximum displacement value) and computation time with the classic approach (up to 97% in time reduction). This paper demonstrated the validity of the proposed model, allowing accurate and fast determination of the stiffness of machine tool load-bearing system.

Słowa kluczowe

EN

roller guides; guideway system; machine tool; FEM; static reduction

PL

prowadnice rolkowe; MES; obrabiarka

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 4
• Strony: 1072--1082
• Opis fizyczny: Bibliogr. 28 poz., rys., wykr.

Twórcy

autor

Dunaj Paweł

• Institute of Mechanical Technology, West Pomeranian University of Technology, Szczecin, Poland

autor

Berczyński Stefan

• Institute of Mechanical Technology, West Pomeranian University of Technology, Szczecin, Poland

autor

Pawełko Piotr

• Institute of Mechanical Technology, West Pomeranian University of Technology, Szczecin, Poland

autor

Grządziel Zenon

• Maritime University of Szczecin, Poland

autor

Chodźko Marcin

• Institute of Mechanical Technology, West Pomeranian University of Technology, Szczecin, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)