Marian Ostrowski, M.Sc.


List of chapters in recent monographs
1.
196
Pawłowski P.K., Mikułowski G., Graczykowski C., Ostrowski M., Jankowski Ł., Holnicki-Szulc J., Smart technologies for safety engineering, rozdział: Adaptive impact absorption, Wiley, Holnicki-Szulc J. (Ed.), pp.153-213, 2008

Conference papers
1.Jankowski Ł., Graczykowski C., Pawłowski P., Mikułowski G., Ostrowski M., Popławski B., Faraj R., Suwała G., Holnicki-Szulc J., Adaptive Self-Protection against Shock and Vibration, Advances in Science and Technology, ISSN: 1662-0356, DOI: 10.4028/www.scientific.net/AST.101.133, Vol.101, pp.133-142, 2017
Abstract:

This contribution reviews the challenges in adaptive self-protection of structures. A proper semi-active control strategy can significantly increase structural ability to absorb impact-type loads and damp the resulting vibrations. Discussed systems constitute a new class of smart structures capable of a real-time identification of loads and vibration patterns, followed by a low-cost optimum absorption of the energy by structural adaptation. Given the always surging quest for safety, such systems have a great potential for practical applications (in landing gears, road barriers, space structures, etc.). Compared to passive systems, their better performance can be attributed to the paradigm of self-adaptivity, which is ubiquitous in nature, but still sparsely applied in structural engineering. Being in the early stages of development, their ultimate success depends on a concerted effort in facing a number of challenges. This contribution discusses some of the important problems, including these of a conceptual, technological, methodological and software engineering nature.

Keywords:

adaptive impact absorption, smart structures, semi-active control, safety engineering

Affiliations:
Jankowski Ł.-IPPT PAN
Graczykowski C.-IPPT PAN
Pawłowski P.-IPPT PAN
Mikułowski G.-IPPT PAN
Ostrowski M.-IPPT PAN
Popławski B.-IPPT PAN
Faraj R.-IPPT PAN
Suwała G.-IPPT PAN
Holnicki-Szulc J.-IPPT PAN
2.Pawłowski P., Ostrowski M., Graczykowski C., High performance valves for adaptive inflatable structures with flow driven control, SMART2013, 6th ECCOMAS Thematic Conference on Smart Structures and Materials, 2013-09-03/09-06, Turyn (IT), pp.1-10, 2013
Abstract:

The paper presents a concept of new adaptive valve s, which can be applied in the Adaptive Inflatable Structures for impact absorption - high-performance membrane and bistable snap-through valve. The main idea behind those concepts is to employ fluid flow in order to assist actuation of the system.

Keywords:

adaptive impact absorption, inflatable structures, high performance valves

Affiliations:
Pawłowski P.-IPPT PAN
Ostrowski M.-IPPT PAN
Graczykowski C.-IPPT PAN
3.Mikułowski G., Ostrowski M., Holnicki-Szulc J., Overview of High Performance Actuator and High Performance Valve Technologies, ACTUATOR 2012, International Conference on new actuators, 2012-06-18/06-20, Bremen (GE), pp.742-745, 2012
Abstract:

This paper describes concepts of two different technologies developed for control of gas flow in High Performance Actuator (HPA) and control of gas discharge from airbag system through High Performance Valve (HPV). The HPA technology utilizes piezoelectric valve to govern flow in the pneumatic cylinder, used as an impact absorber or smart damper, while the HPV uses membrane surfaces driven by flow and controlled by explosive rings to mode discharge of an airbag system. Both techniques, different in their nature realizes comparatively similar function in flow different scales but similar time scale, where each cycle of operation is near single milliseconds. The paper also covers experimental results and a simple numerical study on the High Performance Valve (HPV) concept developed for a control of an adaptive inflatable impact energy absorber (gas-bag). Patent pending concept of the HPV is utilizing a flow energy drive method, using the flow energy to move and seal working parts of the valve.

Keywords:

Adaptive devices, Piezo-valve, Airbag, Valve, Explosion, Control

Affiliations:
Mikułowski G.-IPPT PAN
Ostrowski M.-IPPT PAN
Holnicki-Szulc J.-IPPT PAN
4.Holnicki-Szulc J., Graczykowski C., Mikułowski G., Mróz A., Ostrowski M., Wiszowaty R., Adaptive impact absorption for safety engineering, 9th International Conference on Shock & Impact Loads on Structures, 2011-11-16/11-18, Fukuoka (JP), pp.373-385, 2011
Abstract:

Adaptive Impact Absorption focuses on active adaptation of energy absorbing structures to actual dynamic loading by using system of sensors detecting and identifying impact in advance and controllable semi-active dissipaters with high ability of adaptation. The article presents a review of research carried out in the Department of Intelligent Technologies of Institute of Fundamental Technological Research dedicated to applications of systems for adaptive impact absorption. Wide range of presented examples covers pneumatic landing gears, adaptive crashworthy structures, wind turbine blade-hub connections and flow control based airbags for maritime and aeronautical applications.

Keywords:

smart structures, adaptive structures, Adaptive Impact Absorption, crashworthiness, safety engineering

Affiliations:
Holnicki-Szulc J.-IPPT PAN
Graczykowski C.-IPPT PAN
Mikułowski G.-IPPT PAN
Mróz A.-IPPT PAN
Ostrowski M.-IPPT PAN
Wiszowaty R.-IPPT PAN

Conference abstracts
1.Pawłowski P., Graczykowski C., Ostrowski M., Sekuła K., Mróz A., Controllable high performance valves for improved crashworthiness of inflatable structures, PETER 2015, Annual International Workshop on Dynamic Behaviour of Structures and Materials, Interaction and Friction Across the Strain Rates, 2015-08-26/08-28, London (GB), pp.52-53, 2015
Keywords:

adaptive inflathigh performance valves, adaptive inflatable structures

Affiliations:
Pawłowski P.-IPPT PAN
Graczykowski C.-IPPT PAN
Ostrowski M.-IPPT PAN
Sekuła K.-other affiliation
Mróz A.-IPPT PAN
2.Ostrowski M., Pawłowski P., Exploding wire technology for control of structure subjected to low velocity impact, PETER 2015, Annual International Workshop on Dynamic Behaviour of Structures and Materials, Interaction and Friction Across the Strain Rates, 2015-08-26/08-28, London (GB), pp.25, 2015
Abstract:

Control of crash or impact process may be based on change of mechanical characteristics due to modification of inner structural connections. Presented work covers numerical and experimental analysis of sandwich fabric composite cantilever beam subjected to a low velocity impact. A set of metallic electrical conductors was placed between composite layers causing their controlled delamination when subjected to an electrical explosion. In result, separation of initially connected components in the vicinity of the exploded conductor is obtained, leading to the change of global mechanical characteristics, allowing for modification of beam behavior. Exploding bridge wire (EBW) phenomenon is known from the end of the 18th century [1] and being in use today, mainly for ignition of high explosive materials [2] as well as in physics of high energy [3]. This effect is caused by a rapid heating of a conductor subjected to a pulse of high voltage electric current, what changes its state of matter from solid to vapor, expanding in surrounding continuum and forming a strong pressure wave. Afterwards, in result of current discharge through the formed plasma channel, additional heat is applied to the system increasing the effect. Depending on explosion parameters and properties of continuum elastic, elasto-plastic or shock waves can be observed. In case of action on the composite, exploding wire embedded between layers acts on adjacent surfaces causing their progressive separation in the vicinity of the explosion. Delamination decoupling adhesive is being extended by the pressure acting in the direction normal to the surface of the composite. Figure 1 depicts an example of experimental delamination process from a medium voltage EBW system. A cantilever beam made of layered sandwich composite was modelled with shell finite elements. Problem was solved in a commercial FEM LS-DYNA package using explicit time integration with nonlinear material and geometric formulation. The delamination was simulated by a controlled separation of a connection between layers in the area surrounding the predefined location of the EBW wire. The initiation time of layers’ separation was one of controllable parameters allowing for a wide search for solution dependencies. Numerical solution was compared with experimental results, showing good convergence and proving control feasibility. Also an analytical, rigid perfectly plastic model for explanation of first order effects was used for demonstration of governing principles [4].

Keywords:

Exploding bridge wire

Affiliations:
Ostrowski M.-IPPT PAN
Pawłowski P.-IPPT PAN
3.Holnicki-Szulc J., Faraj R., Graczykowski C., Jankowski Ł., Mikułowski G., Mróz A., Ostrowski M., Pawłowski P., Wiszowaty R., Adaptive impact absorption - potential applications for safety engineering, SMART 2015, 7th ECCOMAS Thematic Conference on Smart Structures and Materials, 2015-06-03/06-05, Ponta Delgada (PT), pp.1-2, 2015
Keywords:

Smart And Adaptive Structures, Adaptive Impact Absorption, Safety Engineering

Affiliations:
Holnicki-Szulc J.-IPPT PAN
Faraj R.-IPPT PAN
Graczykowski C.-IPPT PAN
Jankowski Ł.-IPPT PAN
Mikułowski G.-IPPT PAN
Mróz A.-IPPT PAN
Ostrowski M.-IPPT PAN
Pawłowski P.-IPPT PAN
Wiszowaty R.-IPPT PAN

Patents
Numer/data zgłoszenia patentowego
Ogłoszenie o zgłoszeniu patentowym
Twórca / twórcy
Tytuł
Kraj i Nazwa uprawnionego z patentu
Numer patentu
Ogłoszenie o udzieleniu patentu
pdf
385086
2008-05-02
BUP 23/09
2009-11-09
Ostrowski M., Graczykowski C., Pawłowski P.
Zawór sterowany zwłaszcza do poduszki gazowej
PL, Adaptronica sp. z o.o.
212619
WUP 10/12
2012-10-31