Partner: Jan Biczyk |
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Recent publications
1. | Mróz A.♦, Holnicki-Szulc J., Biczyk J.♦, Prestress Accumulation-Release Technique for Damping of Impact-Born Vibrations: Application to Self-Deployable Structures, MATHEMATICAL PROBLEMS IN ENGINEERING, ISSN: 1024-123X, DOI: 10.1155/2015/720236, Vol.2015, pp.720236-1-9, 2015 Abstract: A numerical study is presented, which tailors so-called prestress accumulation-release (PAR) strategy to mitigate free vibrations of frame structures. First, the concept of proposed semiactive technique is outlined and possible applications are specified. In the second part of the work a parametric study is discussed, which illustrates the potential of the method for mitigation of free vibrations induced by impact or other initial load scenarios. Special attention is given to the energy balance including all relevant contributions to the total energy of the considered dissipative system. The proposed technique shows a very high potential in mitigation of free vibrations, exceeding 99% of the reference amplitude after 5 cycles of vibration. Affiliations:
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2. | Suwała G., Biczyk J.♦, Jankowski Ł., Nonparametric identification of added masses in frequency domain: a numerical study, Prace IPPT - IFTR Reports, ISSN: 2299-3657, Vol.4f, pp.1-6, 2013 Abstract: This paper presents a theoretical derivation and reports on a numerical verification of a model-free method for identification of added masses in truss structures. No parametric numerical model of the monitored structure is required, so that there is no need for initial model updating and fine tuning. This is a continuation and an improvement of a previous research that resulted in a time-domain identification method, which was tested to be accurate but very time-consuming. A general methodology is briefly introduced, including the inverse problem, and a numerical verification is reported. The aim of the numerical study is to test the accuracy of the proposed method and its sensitivity to various parameters (such as simulated measurement noise and decay rate of the exponential FFT window) in a numerically controlled environment. The verification uses a finite element model of the same real structure that was tested with the time-domain version of the approach. A natural further step is a lab verification based on experimental data. Affiliations:
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List of chapters in recent monographs
1. 365 | Wiszowaty R., Biczyk J.♦, Graczykowski C., Mikułowski G., New Trends in Smart Technologies, rozdział: Method of impact energy dissipation by the use of the pneumatic impact absorber with a piezo-valve, Fraunhofer Verlag, pp.223-230, 2013 |
Conference papers
1. | Mróz A.♦, Holnicki-Szulc J., Biczyk J.♦, Prestress Acumulation-Release for Damping of Impact-Born Vibrations. Numerical Analysis of Simple Frame Structures, 6WCSCM, 6th World Conference on Structural Control and Monitoring, 2014-07-15/07-17, Barcelona (ES), pp.1868-1876, 2014 Abstract: In this paper a numerical study is presented, witch tailors so-called Prestress Accumulation-Relase (PAR) Strategy to mitigate free vibrations of frame structures. First, the concept of proposed semi-active technique is outlined and possible applications are specified. In the second part of the work a parametric study is discussed, which illustrates the potential of the method for mitigation of free vibrations induced by impact or other initial load scenarios. Special attention is given to the energy balance including all relevant contributions to the total energy of the considered dissipative system. The proposed technique shows a very high potential in mitigation of free vibrations, exceeding 99% of the reference amplitude after 5 cycles of vibration. Affiliations:
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2. | Wiszowaty R., Biczyk J.♦, Graczykowski C., Mikułowski G., Method of impact energy dissipation by the use of the pneumatic impact absorber with a piezo-valve, SMART2011, 5th ECCOMAS Thematic Conference on Smart Structures and Materials, 2011-07-06/07-08, Saarbrücken (DE), pp.640-647, 2011 Keywords: Adaptive structures, Shock absorption, Impact energy absorption, Piezoelectric valve Affiliations:
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Conference abstracts
1. | Wiszowaty R., Mikułowski G., Sekuła K.♦, Biczyk J.♦, Application of Piezoelectric Actuators for the Gas Valve Opening Control, SolMech 2014, 39th Solid Mechanics Conference, 2014-09-01/09-05, Zakopane (PL), pp.111-112, 2014 |
Patents
Filing No./Date Filing Publication | Autor(s) Title Protection Area, Applicant Name | Patent Number Date of Grant | |
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414374 2015-10-14 BUP 09/2017 2017-04-24 | Mróz A.♦, Biczyk J.♦, Holnicki-Szulc J.Sterowalne sprzęgło oraz jego zastosowaniePL, Instytut Podstawowych Problemów Techniki PAN, Adaptronica sp. z o.o. | 230890 WUP 12/2018 2018-12-31 | |
407763 2014-04-01 BUP 21/2015 2015-10-12 | Holnicki-Szulc J., Mróz A.♦, Biczyk J.♦Półaktywny węzeł zwłaszcza do tłumienia drgańPL, Instytut Podstawowych Problemów Techniki PAN, Adaptronica sp. z o.o. | 228141 WUP 02/2018 2018-02-28 |