ANALYSIS OF THREAD COIL EFFORT IN THE SCREW – NUT JOINT

The paper concerns optimization of screws in the unit including connectingrod – connecting rod big end of the SW 680 Leyland motor related to uniform distribution of loading on all the thread coils. Optimization of screw geometry insists in partial turning of the thread coil at a determined angle. T...

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Main Author: Grzegorz GASIAK
Format: Article
Language:English
Published: Silesian University of Technology 2014-03-01
Series:Scientific Journal of Silesian University of Technology. Series Transport
Subjects:
Online Access:http://www.polsl.pl/Wydzialy/RT/ZN_T/pelne_teksty/z82/87_ZN82_2014_Gasiak.pdf
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author Grzegorz GASIAK
author_facet Grzegorz GASIAK
author_sort Grzegorz GASIAK
collection DOAJ
description The paper concerns optimization of screws in the unit including connectingrod – connecting rod big end of the SW 680 Leyland motor related to uniform distribution of loading on all the thread coils. Optimization of screw geometry insists in partial turning of the thread coil at a determined angle. The stress state calculations were performed with the finite element method and the Nastran/Patran program. It has been shown that the angle 3o is the optimum angle of partial turning of the thread contour. At that angle, when the screw was loaded by the tensile force 29 kN, we obtained the reduced stress decreased by 12%, and more uniform distribution of the thread coil as compared with the traditional screw (not optimized).
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spelling doaj.art-51eab58831d646bda7c04b61b18e81802022-12-21T22:07:09ZengSilesian University of TechnologyScientific Journal of Silesian University of Technology. Series Transport0209-33242450-15492014-03-01828794ANALYSIS OF THREAD COIL EFFORT IN THE SCREW – NUT JOINTGrzegorz GASIAKThe paper concerns optimization of screws in the unit including connectingrod – connecting rod big end of the SW 680 Leyland motor related to uniform distribution of loading on all the thread coils. Optimization of screw geometry insists in partial turning of the thread coil at a determined angle. The stress state calculations were performed with the finite element method and the Nastran/Patran program. It has been shown that the angle 3o is the optimum angle of partial turning of the thread contour. At that angle, when the screw was loaded by the tensile force 29 kN, we obtained the reduced stress decreased by 12%, and more uniform distribution of the thread coil as compared with the traditional screw (not optimized).http://www.polsl.pl/Wydzialy/RT/ZN_T/pelne_teksty/z82/87_ZN82_2014_Gasiak.pdfscrewnutloadingstressoptimization
spellingShingle Grzegorz GASIAK
ANALYSIS OF THREAD COIL EFFORT IN THE SCREW – NUT JOINT
Scientific Journal of Silesian University of Technology. Series Transport
screw
nut
loading
stress
optimization
title ANALYSIS OF THREAD COIL EFFORT IN THE SCREW – NUT JOINT
title_full ANALYSIS OF THREAD COIL EFFORT IN THE SCREW – NUT JOINT
title_fullStr ANALYSIS OF THREAD COIL EFFORT IN THE SCREW – NUT JOINT
title_full_unstemmed ANALYSIS OF THREAD COIL EFFORT IN THE SCREW – NUT JOINT
title_short ANALYSIS OF THREAD COIL EFFORT IN THE SCREW – NUT JOINT
title_sort analysis of thread coil effort in the screw nut joint
topic screw
nut
loading
stress
optimization
url http://www.polsl.pl/Wydzialy/RT/ZN_T/pelne_teksty/z82/87_ZN82_2014_Gasiak.pdf
work_keys_str_mv AT grzegorzgasiak analysisofthreadcoileffortinthescrewnutjoint