Stiffness and damping characteristics of MR fluid-based sandwich beams: experimental study

• Autorzy: Romaszko M. , Sapiński B.

Identyfikatory

DOI

10.15632/jtam-pl.56.3.571

• Języki publikacji: EN

Abstrakty

EN

The study investigates the behaviour of three-layered cantilever sandwich beams filled with magnetorheological fluids (MRFs) differing in the iron particle content by volume. Outer layers are made of aluminium, the space between them is sealed with silicone rubber. Two types of beams are considered: fully filled beams and partially filled beams, subjected to the magnetic field. The aim of the study is to determine stiffness and damping characteristics in relation to the magnetic field strength and the actual location where the magnetic field acts upon the beam. For this purpose, measurements have been taken of the beam free vibration response for various magnetic field strength levels and for various positions of the electromagnet located along the beam axis. Basing on the developed measurement data processing algorithm, the influence of the vibration amplitude on the natural frequency and a dimensionless damping coefficient have been determined. Finally, the equivalent natural frequency and the dimensionless damping coefficient have been derived accordingly, and the stiffness and damping ratio have been determined in function of the magnetic field strength, the electromagnet position and the MRF iron particle content by volume.

Słowa kluczowe

EN

magnetorheological fluid; beam; magnetic field; vibration; stiffness; damping

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2018
• Tom: Vol. 56 nr 3
• Strony: 571—583
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Romaszko M.

• AGH University of Science and Technology, Department of Process Control, Cracow, Poland

autor

Sapiński B.

• AGH University of Science and Technology, Department of Process Control, Cracow, Poland

Bibliografia

• 1. DiTaranto R.A., 1965, Theory of vibratory bending for elastic and viscoelastic layered finitelength beams, Journal of Applied Mechanics, 87, 881-886
• 2. Lara-Prieto V., Parkin R., Jackson M., Silberschmidt V., Kesy Z., 2010b, Vibration characteristics of MR cantilever sandwich beams: experimental study, Journal of Smart Materials and Structures, 19, 1
• 3. Rajamohan V., Rakheja S., Sedaghati R., 2010a, Vibration analysis of a partially treated multi-layer beam with magnetorheological fluid, Journal of Sound and Vibration, 329, 3451-3469
• 4. Rajamohan V., Ramamoorthy M., 2012, Dynamic characterization of non-homogeneous magnetorheological fluids based multi-layer beam, Applied Mechanics and Materials, 110-116, 105-112
• 5. Rajamohan V., Sedaghati R., Rakheja S., 2010b, Optimum design of a multilayer beam partially treated with magnetorheological fluid, Journal of Smart Materials and Structures, 19, 1
• 6. Rajamohan V., Sedaghati R., Rakheja S., 2010c, Vibration analysis of a multi-layer beam containing magnetorheological fluid, Journal of Smart Materials and Structures, 19, 1
• 7. Rajamohan V., Sedaghati R., Rakheja S., 2011, Optimal vibration control of beams with total and partial MR-fluid treatments, Journal of Smart Materials and Structures, 20, 11
• 8. Romaszko M., 2013, Free vibration control of a cantilever MR fluid based sandwich beam, Proceedings of the 14th International Carpathian Control Conference (ICCC), Rytro, Poland, May 26-29, 2013
• 9. Romaszko M., Lacny L., 2015, Magnetic field analysis of the actuator in a semi-active vibration control of the beam with MR fluid, Applied Mechanics and Materials, 759, 37-44
• 10. Romaszko M., Pakula S., Sapinski B., Snamina J., 2011, Vibration parameters of sandwich beams with two types of MR fluid, Mechanics and Control, 30, 3, 151-156
• 11. Romaszko M., Sapinski B., Sioma A., 2015, Forced vibrations analysis of a cantilever beam using the vision method, Journal of Theoretical and Applied Mechanics, 53, 1, 243-254
• 12. Romaszko M., Snamina J., Pakula S., 2014, Composite beam’s parameters identification based on frequency responses, Proceedings of the 15th International Carpathian Control Conference (ICCC), Velke Karlovice, Czech Republic, May 28-30
• 13. Snamina J., Sapinski B., Wszołek W., Romaszko M., 2012a, Investigation on vibrations of a cantilever beam with magnetorheological fluid by using the acoustical signal, Acta Physica Polonica A, 121, 1-A, 188-190
• 14. Snamina J., Sapinski B., Romaszko M., 2012b, Vibration parameter analysis of sandwich cantilever beams with multiple MR fluid segments, Engineering Modeling, 12, 43, 247-254
• 15. Sun Q., Zhou J.X., Zhang L., 2003, An adaptive beam model and dynamic characteristics of magnetorheological materials, Journal of Sound and Vibration, 261, 465-481
• 16. Yalcintas M., Dai H., 1999, Magnetorheological and electrorheological materials in adaptive structures and their performance comparison, Journal of Smart Materials ans Structures, 8, 560-573
• 17. Yalcintas M., Dai H., 2004, Vibration suppression capabilities of magnetorheological materials based adaptive structures, Journal of Smart Materials and Structures, 13, 1-11
• 18. Yeh Z.F., Shih Y.S., 2006, Dynamic characteristics and dynamic instability of magnetorheological material-based adaptive beams, Journal of Composite Materials, 40, 1333-1359

Uwagi

PL

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