Determination of the internal resistance of a hammer drill chisel

• Autorzy: Nikolov N. , Sinapov P.

Identyfikatory

DOI

10.15632/jtam-pl.56.1.169

• Języki publikacji: EN

Abstrakty

EN

The present work examines damped oscillations of a chisel, represented as a distributed parameters system. The system is discretized with the finite element method. Rayleigh’s law is used for the modelling of the resistance. The internal resistance of the mechanical system has been determined by an experiment, then enshrined in the numerical model. Comparison and analysis of the results have been made.

Słowa kluczowe

EN

free damped oscillations; FEM; Rayleigh damping matrix; damping coefficients

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2018
• Tom: Vol. 56 nr 1
• Strony: 169--178
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Nikolov N.

• Technical University – Sofia, Strength of Materials Department, Sofia, Bulgaria

autor

Sinapov P.

• Technical University – Sofia, Department of Mechanics, Sofia, Bulgaria

Bibliografia

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• 11. Rao S.S., 2004, The Finite Element Method in Engineering, Butterworth-Heinemann, 430-431
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• 13. Sangeetha N., Sathish Kumar P., 2014, A study of vibration analysis for drill string using finite element analysis, IOSR Journal of Mechanical and Civil Engineering, 8, 60-74
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• 17. Yigit A.S., Christoforou A.P., 1998, Coupled torsional and bending vibrations of drillstrings subject to impact with friction, Journal of Sound and Vibration, 215, 1, 167-181
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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).