Active Suspension Based on Low Dynamic Stiffness

• Authors: J. Snamina , J. Kowal , P. Orkisz
• Languages of publication: EN

Abstracts

EN

The paper presents an active vibration control system based on low dynamic stiffness of suspension. Using a simple two degrees-of-freedom system a few basic concepts of lowering suspension dynamic stiffness are presented. Through reducing the dynamic component of force between the protected subsystem and remaining part of the system, considerable vibration suppression is achieved. Linear and nonlinear algorithms are proposed. In the case of nonlinear control algorithm, the sufficient link between the protected subsystem and the remaining part of the system necessary to change the position of the protected subsystem is maintained. Experiments described in the paper cover two different cases. In the first case, the suspension operated as the passive suspension, while in the second case, the active reduction system was included. The results are presented graphically.

Keywords

EN

07.07.Tw; 46.40.-f; 05.45.-a

Discipline

• 05.45.-a: Nonlinear dynamics and chaos(see also section 45 Classical mechanics of discrete systems; for chaos in fluid dynamics, see 47.52.+j; for chaos in superconductivity, see 74.40.De)
• 07.07.Tw: Servo and control equipment; robots
• 46.40.-f: Vibrations and mechanical waves(see also 43.40.+s Structural acoustics and vibration; 62.30.+d Mechanical and elastic waves; vibrations in mechanical properties of solids)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 123
• Issue: 6
• Pages: 1118-1122

Dates

published

2013-06

Contributors

author

J. Snamina

• AGH - University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Process Control, al. A. Mickiewicza 30, 30-059 Krakow, Poland

author

J. Kowal

• AGH - University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Process Control, al. A. Mickiewicza 30, 30-059 Krakow, Poland

author

P. Orkisz

• AGH - University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Process Control, al. A. Mickiewicza 30, 30-059 Krakow, Poland

References

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• [6] A. Alleyne, J.K. Hedrick, IEEE Transactions on Control Systems Technology 3, 94 (1995)
• [7] C.R. Fuller, S.J. Elliot, P.A. Nelson, Active Control of Vibration, Academic Press, London 1996
• [8] J. Snamina, A. Podsiadło, P. Orkisz, Mechanics 28, 124 (2009)
• [9] US Patent No. 7290642, Magnetic spring device with negative stiffness 2007
• [10] T. Topor-Kaminski, R. Żurkowski, M. Grygiel, Acta Physica Polonica A 120, 748 (2011)
• [11] P. Orkisz, Mechanics and Control 30, 12 (2011)

Identifiers

DOI

10.12693/APhysPolA.123.1118