Institute of Fundamental Technological Research
Polish Academy of Sciences

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Tomasz Kowalski

Adaptronica Sp. z o.o. (PL)


Conference papers
1.  Wołejsza Z., Holnicki-Szulc J., Graczykowski C., Hinc K., Faraj R., Kowalski T., Mikułowski G., Kaźmierczak K., Wiszowaty R., Pawłowski P., Dynamics and control of adaptive airbags for UAV impact protection, ISMA 2018 / USD 2018, International Conference on Noise and Vibration Engineering / International Conference on Uncertainty in Structural Dynamics, 2018-09-17/09-19, Leuven (BE), pp.3661-3670, 2018

Abstract:
Small drones with total mass of a few kilograms are becoming more and more popular in many applications increasing the probability of occurrence of emergency situations caused by an equipment failure or a human error. In case of a fall from a high altitude very often it is possible to use parachute rescue systems, which however require relatively long time for deployment and development of braking forces. The touchdown velocity may be large enough to exceed limit accelerations for UAV equipment. The paper presents the concept of deployable airbag systems, in particular with adaptive flow control, which provides a possible solution to the above-mentioned problems. The paper discusses the overall control and adaptation strategy. Simplified methods for mathematical modeling are proposed and formulated for an example on a cylindrical airbag. The conceptual part is concluded with the presentation of the methodology of experimental verification and results of initial tests of the integrated airbag system.

Affiliations:
Wołejsza Z. - IPPT PAN
Holnicki-Szulc J. - IPPT PAN
Graczykowski C. - IPPT PAN
Hinc K. - other affiliation
Faraj R. - IPPT PAN
Kowalski T. - Adaptronica Sp. z o.o. (PL)
Mikułowski G. - IPPT PAN
Kaźmierczak K. - IPPT PAN
Wiszowaty R. - IPPT PAN
Pawłowski P. - IPPT PAN

Conference abstracts
1.  Faraj R., Hinc K., Popławski B., Gabryel D., Kowalski T., Graczykowski C., Preliminary study on adaptive techniques for novel type of the rescue cushion, EURODYN 2020, XI International Conference on Structural Dynamics, 2020-11-23/11-26, Ateny (GR), pp.1-1, 2020

Abstract:
Despite the fact that airbag systems are well-known and used in safety engineering for many years the growth of research and development activities and increasing number of new applications of airbags are observed. Advances in the field includes among others: development of advanced car airbags, analyses of airbag cushioning for landing on Mars, elaboration of emergency landing system for drones. Another field of airbags application and simultaneously the main motivation for the study presented in the paper is the evacuation of people conducted by the fire brigade. When people are forced to leave the building by jump from the window or roof the rescue cushion is placed on the ground in order to mitigate the impact and safe life of evacuated people. The aim of the study is to develop the relevant adaptation strategy for the system and provide efficient operation of the airbag in case of different impact velocities and different masses of the landing person. Several approaches to the system adaptation are analyzed and they include semi-active as well as semi-passive solutions. Also possibility of implementing the concept of self-adaptive impact absorption is assessed. Technical and operational requirements for the rescue cushion are considered and based on them the final adaptation principles are selected. Evaluation of the system performance is conducted with the use of numerical models of dummies provided in the LS Dyna software environment. In Fig. 1. the overloads acting on pelvis of three different dummies dropped from assumed height are shown. The obtained mitigation of the impact loading is significant for all considered cases.

Affiliations:
Faraj R. - IPPT PAN
Hinc K. - other affiliation
Popławski B. - IPPT PAN
Gabryel D. - other affiliation
Kowalski T. - Adaptronica Sp. z o.o. (PL)
Graczykowski C. - IPPT PAN
2.  Kowalski T., Faraj R., Graczykowski C., Hinc K., Mikułowski G., Pawłowski P., Wołejsza Z., Development of adaptive airbags for emergency landing of small uav, SolMech 2018, 41st SOLID MECHANICS CONFERENCE, 2018-08-27/08-31, Warszawa (PL), pp.1-2, 2018

Patents
Filing No./Date
Filing Publication
Autors
Title
Protection Area, Applicant Name
Patent Number
Date of Grant
pdf
436060
2020-11-24
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Faraj R., Gabryel D. M., Kowalski T. M.
Układy wykrywania i sygnalizacji gotowości do przyjęcia uderzenia poduszki powietrznej, zwłaszcza skokochronu oraz poduszka powietrzna zawierająca te układy
PL, Instytut Podstawowych Problemów Techniki PAN
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20200454.5
2020-10-07
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Faraj R., Kowalski T. M., Wołejsza Z., Mikułowski G., Pawłowski P., Hinc K., Graczykowski C., Holnicki-Szulc J.
An adaptive emergency landing device for a flying object, especially for an unmanned aerial vehicle
EPO, Instytut Podstawowych Problemów Techniki PAN
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431425
2019-10-09
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Faraj R., Kowalski T. M., Wołejsza Z., Mikułowski G., Pawłowski P., Hinc K., Graczykowski C., Holnicki-Szulc J.
Adaptacyjne urządzenie awaryjnego lądowania obiektu, zwłaszcza dla bezzałogowego statku powietrznego
PL, Instytut Podstawowych Problemów Techniki PAN, Adaptronica sp. z o.o.
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