From statistics, through new requirements to mathematical modelling of SAT aircraft safety

Dziugieł, Bartosz; Goraj, Zdobysław

doi:10.1108/aeat-01-2017-0027

Cited by 4 publications

(12 citation statements)

References 4 publications

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“…Quoted probabilities of incidents and accidents are function of, amongst others, flight distance and shares of particular flight phases in total flight duration. Therefore, it is necessary to assume one referential mission profile for all the calculated configurations (Dziugiel, 2017): …”

Section: Mathematical Model Of Safetymentioning

confidence: 99%

“…Single-engine piston configuration is one of the least complex solutions. It is also the second most common system operated under Part 135 regulations between 2006 and 2015, with share of more than 22 per cent in total number of flight hours executed (Dziugiel, 2017). Beside the engine, thrust generation is determined by proper work of propeller, fuel system, oil system and adequate quality of fuel (Figure 3).…”

Section: State Of the Artmentioning

confidence: 99%

“…Share of particular systems malfunctions are presented in Table I. Data from the table calculated on base of data are provided by Federal Aviation Administration (FAA), NTSB and methodology developed in Dziugieł (2016) and Dziugiel (2017).…”

Section: State Of the Artmentioning

confidence: 99%

“…Despite the fact that human error can be identified as a reason prevailing majority of commercially used light aircraft incidents and accidents of Dziugiel and Goraj (2018), technical reliability of aircraft systems is still of much higher significance than in the case of big commercial air transport (Key Dismukes, 2016). In this area, the engine and other components of propulsion can be pointed as the highest single technical source of risk, accounting for more than 12 per cent of all incidents and accidents in operations under FAR Part 135 rules and more than 40 per cent resulting from technical malfunction (Dziugieł, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…To meet that goal, five different piston powerplant configurations were analysed and compared to chosen piston-electric configuration. For safety estimation, the Small Aircraft Safety model developed in Dziugieł (2016) and Dziugiel and Goraj (2018) was used. The model provides accident probability, frequency and MTBF calculated on base of real data and guarantying reliable foundation for the conclusions.…”

Section: Introductionmentioning

confidence: 99%

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Piston-electric propulsion system as reliable alternative for classic and nonconventional piston engine configurations

Dziugieł

2019

AEAT

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Purpose The purpose of this paper is to define reliability requirements to be imposed on electric engines to assure similar or higher value of mean time between failures (MTBF) for mixed piston-electric propulsion configurations when compared to classic and unconventional piston engine configurations. Design/methodology/approach Reliability estimation was done using mathematical model of safety of light aircraft commercial operations. The model was developed on the basis of Federal Aviation Administration and National Transport Safety Board data. The analysis was conducted for numerous piston and electric configurations. It allowed comparison of selected solutions and definition of relation between electric engine MTBF and MTBF calculated for entire mixed piston-electric propulsion system. Findings It was found that, from reliability point of view, mixed piston-electric engine propulsion is attractive alternative for classic single- and twin-piston configuration. It would allow to at least doubling of MTBF for propulsion without increase of operational cost. Practical implications Rationale behind exploiting electric propulsion in aviation is provided. Relation between electric engine reliability and entire propulsion reliability was identified and defined. Minimum requirements concerning MTBF value for electric engine application in aviation was assessed. Conclusions from this study can be used for definition of requirements for new aircraft and by the regulatory authorities. Originality/value Originality consists in use of real accident statistics included in mathematical model of safety for assessment of MTBF for various classic and novel piston and piston-electric engine configurations of light aircraft. Output from the study can be exploited by the industry.

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Section: Mathematical Model Of Safetymentioning

confidence: 99%

Section: State Of the Artmentioning

confidence: 99%

Section: State Of the Artmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Piston-electric propulsion system as reliable alternative for classic and nonconventional piston engine configurations

Dziugieł

2019

AEAT

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Multimodal 3D transport system implementation barriers in populated municipalities

Dziugieł

Mazur

Liberacki

et al. 2023

AEAT

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Purpose Process of building and then implementation of integrated multimodal, passenger-centred and predominantly sustainable transport system will require a specific effort to be input in preparation, especially if it covers new entrants like passenger Urban Air Mobility. This paper aims to address the first step which is the identification of barriers to be overcome to turn the concept into reality. Design/methodology/approach Comparison of the current state-of-the-art in transportation, Information and Communication Technologies as well as other city planning domains to the forecasted ecosystem, described in the form of scenarios where base for definition of necessary actions, challenges as well as potential barriers and obstacles were identified and thoroughly specified. Findings Barriers grouped in five categories: policy, digitalisation, transportation technologies, integration technologies and passengers’ needs allow for formulation of the relevant roadmaps defining optimal development path towards fully integrated multimodal, passenger-centred and sustainable transport system. Research limitations/implications Conclusions can be a starting point in studies towards development of roadmap for implementation of truly integrated municipal transport system both sharing the resources as well as high-level objectives. Practical implications Conclusions can be exploited in various areas starting from preparation of strategies in cities aspirating to be smart, through definition of technology development priorities by relevant agencies ending with industry actors looking for better trimming their business. Originality/value The identified barriers as derived from detailed investigation enable deep insight into the total transport system vision in which Urban Air Mobility integrated within urban mobility ecosystem is considered as game-changing factor having large potential to contribute to both making cities smart and sustainable.

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Design of a Circularly Polarized Micro-Strip Antenna for Aircraft Tracking Based on BeiDou III Compatible with Multi-Navigation System

Ma,

Huang

2023

Micromachines

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This paper proposed a right-handed circularly polarized (RHCP) micro-strip antenna for multi-navigation system applications. The size of the antenna is 70 mm × 70 mm × 2 mm, which is fabricated on an FR4 substrate. A meandering technique on a patch layer and asymmetrical defected ground structures (DGS) are employed to achieve the purpose of miniaturization and increase the bandwidth of the axial ratio. The prototype of this antenna is fabricated according to simulations where the bandwidth of return loss, bandwidth of axial ratio, and radio pattern are further testified. The bandwidth of return loss (S11) and axial ratio (AR) of the antennas are from 1.540 GHz to 1.612 GHz and 1.554 GHz to 1.601 GHz, which would be available for L1 of GPS, L1 of SBAS, E1 of Galileo as well as B1I and B1C of BDS-3, the last two of which can be used for aircraft tracking. The relative bandwidth is 2.98%, which satisfies the standard of wide-band patch antennas.

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From statistics, through new requirements to mathematical modelling of SAT aircraft safety

Cited by 4 publications

References 4 publications

Piston-electric propulsion system as reliable alternative for classic and nonconventional piston engine configurations

Piston-electric propulsion system as reliable alternative for classic and nonconventional piston engine configurations

Multimodal 3D transport system implementation barriers in populated municipalities

Design of a Circularly Polarized Micro-Strip Antenna for Aircraft Tracking Based on BeiDou III Compatible with Multi-Navigation System

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