| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document Help

Title:Meje stabilnosti vibracij pri struženju
Authors:ID Pušenjak, Rudi (Author)
Files:.pdf Meje_stabilnosti_vibracij-Pusenjak-2018.pdf (1,98 MB)
MD5: 678A308E7635396E0D26AF793091FF65
 
URL https://journals.um.si/index.php/anali-pazu/article/view/1994
 
Language:Slovenian
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:UZUM - University of Maribor Press
Abstract:V članku je obravnavan model samovzbujenih vibracij v procesu struženja z eno prostostno stopnjo, ki sestoji iz regulacijske strukture z direktno vejo, primarno povratno zvezo in regenerativno povratno zvezo. Direktna veja služi za modeliranje dinamike procesa odrezavanja in strukturne dinamike. Regenerativna povratna zveza služi za modeliranje časovne zakasnitve, ki v procesu odrezavanja nastaja zaradi vrtenja obdelovanca. Vibracije pri struženju nastanejo, ko postane regulacijska struktura nestabilna in neugodno vplivajo na kvaliteto procesa odrezavanja (groba površina in slaba dimenzijska natančnost obdelovanca). Prav tako pa povzročajo hitro obrabo rezalnega orodja in celo možno poškodbo stružnice. V prispevku je izpeljana vodilna diferencialna enačba vibracij v procesu struženja, ki jo rešujemo z novo metodo koračnega harmonskega ravnovesja (MKHR). S pomočjo te metode konstruiramo stabilnostni diagram procesa struženja, ki z določitvijo stabilnih področij zagotavlja optimalne pogoje struženja pri spremenljivi hitrosti vretena.
Keywords:struženje, proces odrezavanja, regenerativni model, koračna metoda harmonskega ravnovesja, stabilnostni diagram
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2018
Place of publishing:Maribor
Publisher:Univerza v Mariboru, Univerzitetna založba
Year of publishing:2018
Number of pages:7
Numbering:Letn.8, št.1/2
PID:20.500.12556/DKUM-97307 New window
UDC:621.9
ISSN on article:2820-364X
COBISS.SI-ID:1599990 New window
DOI:10.18690/analipazu.8.1-2.26-32.2018 New window
Publication date in DKUM:27.02.2026
Views:152
Downloads:7
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
Copy citation
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share



Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a journal

Title:Anali PAZU
Publisher:Združenje Pomurska akademsko znanstvena unija, Združenje Pomurska akademsko znanstvena unija, Univerzitetna založba Univerze v Mariboru
ISSN:2232-416X
COBISS.SI-ID:257553152 New window

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

Language:English
Title:Stability Boundaries of Chatter Vibrations in Turning
Abstract:The paper treats a model of self-excited vibrations in the turning process with one degree of freedom by applying the control structure, which consists of the forward branch, primary feedback and the regenerative feedback. The dynamics of cutting process and the structural dynamics are modeled in the forward branch of the control structure. The time delay, which is an inherent phenomenon of the cutting process and occurs due to the workpiece revolutions is modeled in the regenerative feedback. Vibrations in turning emanate, when the control structure becomes unstable and adversely affect the quality of the cutting process with rough surface and poor dimension accuracy. Vibrations can cause a rapid deterioration of the cutting tool and the possible damage of the lathe. In the paper, the governing delayed differential equation of vibrations in turning process is derived, which is solved by the novel incremental harmonic balance method (IHB method). By means of the proposed method, the stability chart of the turning process is constructed, which in stable areas ensures optimal conditions of turning at variable spindle speed.
Keywords:turning, cutting process, regenerative model, incremental harmonic balance method, stability chart


Collection

This document is a part of these collections:
  1. Anali PAZU

Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica