Numerical, experimental and analytical study on MRE used for vibrating pile hammer efficiency improvement

• Autorzy: Kwietniewski M. , Miedzińska D. , Nguyen H. P. , Gieleta R. , Osiński J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this paper is a research on Vibratory Pile Hammer (VPH) efficiency improvement with the use of Magnetorheological Elastomer (MRE) controlled with external magnetic field. Design/methodology/approach: The analytical equations are made to describe physical dependence of MRE on VPH work. To describe elastomer properties reduced polynomial model proposed by Oon H. Yeoh was used. The shear tests for Magnetorheological Elastomer of two with different volume of carbonyl-iron particles and its influence on elastomer pillow implemented in VPH were carried out. Tests were carried out in external magnetic field and without it. Numerical analyses were conducted with the use of MSC Software applying Finite Elements Method (FEM). The FE model was built on the experimental boundary conditions. Findings: MRE significantly changes elastic properties under applied magnetic field, what can be used to stiffness and damping properties of the construction control. Research limitations/implications: In further analyses, the test results will be used for the evaluation and selection of MRE regulation system. Practical implications: The presented results were used in modification of Vibratory Pile Hammer to improve its efficiency and a maintain device in resonance. Originality/value: The new application of the phenomenon of MRE stiffness change caused by the variable external magnetic field will allow to keep the mechanical system in resonance.

Słowa kluczowe

EN

magnetorheological elastomer; vibratory pile hammer; magnetic field; hyperelastic material

PL

elastomery magnetoreologiczne; pole magnetyczne; materiał hipersprężysty

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2015
• Tom: Vol. 73, nr 2
• Strony: 151--156
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Kwietniewski M.

• Department of Mechanics and Applied Computer Science, Military University of Technology, ul. Kaliskiego 2, 00-908 Warsaw, Poland

autor

Miedzińska D.

• Department of Mechanics and Applied Computer Science, Military University of Technology, ul. Kaliskiego 2, 00-908 Warsaw, Poland

autor

Nguyen H. P.

• Department of Mechanics and Applied Computer Science, Military University of Technology, ul. Kaliskiego 2, 00-908 Warsaw, Poland

autor

Gieleta R.

• Department of Mechanics and Applied Computer Science, Military University of Technology, ul. Kaliskiego 2, 00-908 Warsaw, Poland

autor

Osiński J.

• Faculty of Automotive and Construction Machinery Engineering ,Warsaw University of Technology, ul. Narbutta 84, 02-524 Warsaw, Poland

Bibliografia

• [1] A. Boczkowska, S. Awietjan, Intelligent Magnetorheology composites, Polimery 58/6 (2013) 443-449 (in Polish).
• [2] M. Kallio, The elastic and damping properties of magnetorheological elastomers, VTT Publications, Finland, 2003.
• [3] D. Miedzińska, J. Osiński, Numerical investigations on vibrating motion with inertial load of vibratory pile hammer stiffly coupled with excavator; Journal of KONES Powertrain and Transport 21/1 (2014) 189-195.
• [4] J. Busfield, A.H. Muhr, Constitutive models for Rubber IV: Proceedings of the 4th European Conference on Constitutive Models for Rubber, ECCMR 2005, Stockholm, Sweden, 2005.
• [5] J.O. Hallquist, Theoretical manual, California Livermore Software Technology Corporation, LS-Dyna, 1998.