Designing Process of the Drone’s Passive Safety System

Bartkowski, Piotr; Zalewski, Robert

doi:10.1007/978-3-319-31307-8_74

Cited by 3 publications

(3 citation statements)

References 18 publications

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“…The device is built with two plates (2, 3) connected by a jointed bar (1). The space between the plates is filled with granular matter (6) and surrounded by an elastomer coating (4). Because the interaction forces between the granules of the core material can be changed by changing the negative pressure, it is possible to adjust the bending stiffness of the absorber, thus shaping the system response to the force of an impact.…”

Section: Absorber Construction and Testingmentioning

confidence: 99%

“…One of the most popular solutions is the crumple zone in a car, which allows energy to be absorbed during a collision. From the very beginning of aviation, objects were equipped with energy dissipators for reducing the load during a collision with the ground during landing, In the literature, you can find an absorber for reducing the load during the process of automatic parcel delivery by a flying object [5], or an airbag for preventing damage to the multirotor during a collision with the ground [6]. There are many collision energy absorber solutions in onshore infrastructure such as road barriers [7] Almost all the absorbers mentioned above are passive solutions.…”

Section: Introductionmentioning

confidence: 99%

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Bulletin of the Polish Academy of Sciences: Technical Sciences

Bartkowski¹,

Bukowiecki²,

Gawinski³

et al. 2021

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The following discussion concerns the use of innovative smart materials called vacuum-packed particles (VPPs) as active energy absorbers. VPP, also known as a granular jamming system, is a structure composed of granular media contained within an elastomer coating. By changing the vacuum pressure inside the coating, it is possible to control the mechanical properties of the structure. VPPs have many applications, e.g. in medicine, robotics, and vibration damping. No attempts have yet been made to use VPPs to absorb the energy of a collision, although, given their properties, this could very well be an interesting application. In the first part of the paper, the general concept of the absorber is presented. Then a prototype and the empirical tests conducted are precisely described. The middle part of the paper considers the basic properties of VPP and modeling methodology. A proposal for a constitutive equation is presented, and a numerical simulation using LS-Dyna was performed. In the final section, the concept of a smart parking post is presented.

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Section: Absorber Construction and Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Bartkowski¹,

Bukowiecki²,

Gawinski³

et al. 2021

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show abstract

“…However, the greatest progress has been made over the last two decades. Materials such as electrorheological (ER) and magnetorheological (MR) fluids, piezoelectrics, electrostrictive ceramics or sensors based on fiber optics are relatively well understood and widely commercialized [1,2,3]. On the other hand, materials such as shape memory polymers, magnetostrictive materials, conductive polymers, or micro-machined electromechanical systems are not well understood yet and are in early stages of commercialization.…”

Section: Introductionmentioning

confidence: 99%

A concept of smart multiaxial impact damper made of vacuum packed particles

Bartkowski

Zalewski

2018

MATEC Web Conf.

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The conceptual design of smart crash energy absorber made of Vacuum Packed Particles (VPP) is presented in this work. This structure is composed of granular material inside a plastomer sleeve. The absorber can change the flexural stiffness and as a result the amount of dissipated energy depending on the impact conditions. The special properties of the granular structure create the possibility of various applications as different working modes can be used. When the pressure inside is equal or higher than atmospheric pressure the system behaves similarly to a liquid, otherwise it has properties similar to viscoplastic solid. The physical properties of the structure may be rapidly changed by adjusting the pressure inside the system. Due to these properties Vacuum Packed Particles is considered to be a smart material.

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Passive safety system for small unmanned aerial vehicles

Bartkowski

Zalewski

2018

MATEC Web Conf.

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Abstract. In this paper a new air-bag prototype suitable for protecting valuable objects mounted on the drone is presented. The paper provides a complimentary study involving both numerical simulations and experimental study. The experimental research results are presented for typical air-bag's textile material and were used as a base for the material model calibration process. This model was used for the numerical simulations of the proposed air-bag prototype, which were carried out in the LS-Dyna environment. Based on the outcome of the study, the proposed prototype seems to be a suitable device for preventing the unmanned vehicle equipment from unexpected accidents.

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Designing Process of the Drone’s Passive Safety System

Cited by 3 publications

References 18 publications

Bulletin of the Polish Academy of Sciences: Technical Sciences

Bulletin of the Polish Academy of Sciences: Technical Sciences

A concept of smart multiaxial impact damper made of vacuum packed particles

Passive safety system for small unmanned aerial vehicles

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