The pulley system with three degrees of freedom

• Autorzy: Kocárník P , Jirku S.
• Języki publikacji: EN

Abstrakty

EN

This paper discusses the dynamic system solution with three degree of freedom consist a weightless cable thrown over two fixed side pulleys and the third, free pulley moving along the rope. The cable is stretched with weights attached to its ends and the weight of the free pulley causes the cable dip. Passive resistance on the pulleys stops them from moving. The mathematical description uses a system of differential equations combined with complex kinematic relationships and a description of the passive resistances. The set of equations is converted to a format suitable for numerical solution and a simulation model is created in the Matlab -Simulink program. The results are presented in the form of various relations of kinematic and dynamic system variables.

Słowa kluczowe

EN

mechanical system; pulley system; simulation; Matlab

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2008
• Tom: Vol. 8, No. 1
• Strony: 114--122
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Kocárník P

• Czech Technical University in Prague, Faculty of Electrical Engineering, Dept. of Mechanic and Materials Science, Technická 2, 166 27 Prague 6, Czech Republic

autor

Jirku S.

• Czech Technical University in Prague, Faculty of Electrical Engineering, Dept. of Mechanic and Materials Science, Technická 2, 166 27 Prague 6, Czech Republic

Bibliografia

• [1] BEDFORD A., FOWLER W., Engineering Mechanics - Statics & Dynamics. Fourth Edition, Pearson Prentice Hall, New Jersey, 2005.
• [2] BEER, F. P., JOHNSTON, E.R. Vector Mechanics for Engineers (Statics, Dynamics). Fifth Edition, Mc Graw- Hill Book Company, New York, 1988.
• [3] KOCÀRNÎK P., JIRKÛ S., Simulation of Systems with Mechanical, Hydraulic and Thermodynamic Elements. Journal of Machine Engineering Vol. 6, No. 4, 2006. Editorial Institution of the Wroclaw Board of Scientific Technical Societies Federation NOT, Wroclaw, Poland. ISSN 1895-7595, 104-114.
• [4] Using Simulink, version 5., The Math Works, Inc., Natick. July 2002, 484.