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An aviation accident report data-driven approach to scenario design for a centrifuge-based dynamic flight simulator

Lewkowicz Rafał

Journal of KONBiN

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2023

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Vol. 53, iss. 4

161--189

EN

The use of flight simulators in investigating an aviation incident or accident related to human errors has been identified as an important part of a strategy to improve safety. This study aimed to replicate a real flight of the MiG-29 aircraft using a centrifuge-based dynamic flight simulator and to determine the simulator’s accuracy in recreating in-flight aircraft performance. A 60-second recording of the real flight of the MiG-29 aircraft, captured by the flight data recorder, was chosen for replication in the HTC-07 human training centrifuge simulator. To evaluate how accurately the simulator replicates the performance of the aircraft, the linear accelerations and angular velocities acting on a pilot during the real flight were compared with those during the replication of that flight in the simulator. The fit of these parameters was assessed using the root mean square percentage error (RMSPE) and the correlation coefficient (r). The highest replication accuracy was achieved for the vertical component of the linear acceleration (RMSPE=2068; r=0.98), while the worst result was obtained for the longitudinal component (RMSPE=14205; r=0.31). Inaccuracies were much more pronounced for the angular velocity. The roll angular velocity had the lowest replication error (RMSPE=12640). However, its correlation with the recorded velocity during the real flight was very weak (r=-0.02). Despite some inaccuracies in replicating other components of the acceleration and angular velocity vectors, the HTC-07 simulator seems valuable for investigating aviation incidents or accidents related to human factors.

PL

Wykorzystanie symulatorów lotu w badaniach incydentu lub wypadku lotniczego, którego przyczyną mógł być błąd ludzki, zostało uznane za ważną część strategii poprawy bezpieczeństwa lotów. Celem tego badania było odtworzenie rzeczywistego lotu samolotu MiG-29 w dynamicznym symulatorze lotu opartym na wirówce przeciążeniowej oraz ocena, czy symulator ten może dokładnie odtworzyć osiągi samolotu podczas lotu. Do odtworzenia w wirówce przeciążeniowej – symulatorze HTC-07 wybrano 60-sekundowe nagranie rzeczywistego lotu samolotu MiG-29, zarejestrowane przez pokładowy rejestrator danych lotu. W celu oceny, jak dokładnie symulator odtwarza osiągi samolotu porównano przyspieszenia liniowe i prędkości kątowe działające na pilota podczas rzeczywistego lotu z przyspieszeniami działającymi podczas replikacji tego lotu w symulatorze. Dopasowanie tych parametrów oceniono za pomocą średniokwadratowego błędu procentowego (RMSPE) oraz współczynnika korelacji (r). Największą dokładność replikacji osiągnęła składowa pionowa przyspieszenia liniowego (RMSPE = 2068; r = 0,98), podczas gdy najgorszy wynik miała składowa podłużna (RMSPE = 14205; r = 0,31). Niedokładności były znacznie bardziej widoczne w przypadku prędkości kątowej. Prędkość kątowa przechyłu miała najniższy błąd replikacji (RMSPE = 12640), jednak jej korelacja z zarejestrowaną prędkością podczas rzeczywistego lotu była bardzo słaba (r = -0,02). Pomimo niedokładności w odtwarzaniu pozostałych składowych wektorów przyspieszenia i prędkości kątowej, symulator HTC-07 wydaje się cennym narzędziem do badania incydentów lub wypadków lotniczych związanych z czynnikiem ludzkim.

2

Analysis of braking marks left by vehicles equipped with ABS with IR spectroscopy – different types of asphalt

Sys Ewa, Kubiak Przemysław, Gosławski Łukasz, Zakrzewicz Wojciech

Archiwum Motoryzacji

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2021

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Vol. 93, nr 3

5--14

EN

Detailed analysis of literature showed that there is no method that can be used in order to investigate skid marks left by vehicles equipped with ABS. Authors decided to identify braking trace by using IR spectroscopy. Preliminary studies have been performed and results were promising. Due to that fact authors decided to conduct detailed research where the influence of various factors on the possibility of revealing breaking traces would be taken into account. This article is the first in a series of articles taking into account the influence of various factors on the possibility of revealing breaking marks using IR spectroscopy. In this article the influence of the type of asphalt was studied. Authors conducted tests with the most popular types of asphalts used for the wearing course. 100 samples from 5 different types of asphalt were prepared. Each sample was measured 3 times to create its spectrum. The results were analyzed thoroughly using the dedicated SpectraGryph software. The analysis showed that for 4 out of 5 types of tested asphalt, the braking traces were visible at a wavelength of approximately 11 500 nm. Only for the rubberized asphalt there weren’t possibility to reveal skid mark.

3

Analysis of braking marks left by vehicles equipped with ABS with IR spectroscopy

Gosławski Lukasz, Kubiak Przemyslaw, Mrowicki Adam, Soghabatyan Tigran, Sys Ewa, Wang Ying-Wei, Zou Tiefang

Archiwum Motoryzacji

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2019

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Vol. 84, nr 2

33--43

EN

This paper presents the possible use for IR spectroscopy to reveal skid marks left by cars equipped with Anti-lock Braking System. Detailed analysis of literature showed that there is no method that can be used in order to investigate this kind of tire marks. Up till now only two techniques have been devised. The first one is Method of Image Refinement which consists of transforming the image from the scene of the accident using dedicated graphics software. Second method includes analysis of traces using a thermal imaging camera. This study presents an innovative approach to the problem. Numerous analyses using IR spectroscopy were conducted to check the suitability of this method. The research performed on a Thermo Scientific FTIR Nicolet iS50 Spectrophotometer with an ATR attachment. 40 samples from 10 different types of asphalt were prepared. Each sample was measured 3 times to create its spectrum. The results were analyzed thoroughly using the dedicated SpectraGryph software. Analysis show that the wavelength which makes the braking marks visible is found within the mid-infrared range. Finally, it was found wavelength in which skid marks should be visible. This range is located in the mid-infrared.

4

Using the FRAM to Understand Arctic Ship Navigation: Assessing Work Processes During the Exxon Valdez Grounding

Smith D., Veitch B., Khan F., Taylor R.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

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2018

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Vol. 12, no. 3

447--457

EN

Arctic shipping involves a complex combination of inter-related factors that need to be managed correctly for operations to succeed. In this paper, the Functional Resonance Analysis Method (FRAM) is used to assess the combination of human, technical, and organizational factors that constitute a shipping operation. A methodology is presented on how to apply the FRAM to a domain, with a focus on ship navigation. The method draws on ship navigators to inform the building of the model and to learn about practical variations that must be managed to effectively navigate a ship. The Exxon Valdez case is used to illustrate the model’s utility and provide some context to the information gathered by this investigation. The functional signature of the work processes of the Exxon Valdez on the night of the grounding is presented. This shows the functional dynamics of that particular ship navigation case, and serves to illustrate how the FRAM approach can provide another perspective on the safety of complex operations.

5

“Just culture”? Conflicts of interest in the investigation of aviation accidents

Balcerzak T.A.

Zeszyty Naukowe. Transport / Politechnika Śląska

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2017

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z. 94

5--17

EN

The sole purpose of air accident investigations should be the prevention of accidents and other incidents in the future, without apportioning blame or liability. A civil aviation safety system is based on feedback and lessons learned from accidents and incidents, while requiring the strict application of rules on confidentiality in order to ensure the availability of valuable sources of information in the future. Therefore, related data, especially sensitive safety information, should be protected in an appropriate manner. Information provided by an individual in the framework of a safety investigation should not be used against them, in full respect of constitutional principles, and national and international law. Each “involved person” who knows about an accident or serious incident should promptly notify the competent state authority for carrying out an investigation of the event. “Involved person” refers to one of the following: the owner; a member of the crew; the operator of the aircraft involved in an accident or serious incident; any person involved in the maintenance, design, manufacture of that aircraft or in the training of its crew; any person involved in air traffic control, providing flight information or providing airport services, which provided services for the aircraft concerned; staff of the national civil aviation authority; or staff of the European Aviation Safety Agency. In terms of the protection level of the organization (employer), employees who report an event or submit an application to the investigation cannot bear any prejudice from their employer because of information provided by the applicant. The protection does not cover (exclusions): infringement with wilful misconduct (direct intent, recklessness infringement); infringement committed by a clear and serious disregard of the obvious risks; and serious professional negligence, i.e., the failure to provide unquestionably duty of care required under the circumstances, causing possible or actual damage to persons or property leading the level of aviation safety being seriously compromised. All employees in the aviation sector, regardless of their function, have safety-related duties and are therefore critical to the security of the entire civil aviation system. The safety of this system requires that any event that has or may have an impact on security in aviation should be reported voluntarily and without delay, because it is necessary to conduct an appropriate investigation in order to increase the level of safety. “Just Culture” is the basic premise for the effective functioning of the reporting of events required for all aviation organizations in order to maintain and raise the safety level. As safety management is based on precise data, it is necessary to introduce appropriate procedures, which allow for obtaining information not only about the events that have already occurred, but also about any other events that could potentially cause hazardous conditions. All the procedures and rules of operation relating to the policy of Just Culture should be constructed so that they not only comply with the provisions of applicable law, but are also rational and understandable by all stakeholders, as well as provide certain comfort and confidentiality to persons reporting events that affect airline safety. Changes in the existing legal system should be established in cooperation with all concerned institutions: law enforcement, including the courts and public prosecution, aviation insurers, the Aircraft Accident Investigation Commission and other entities. Is it possible to reconcile the interests of the so-called culture of aviation safety, i.e., Just Culture, with the requirements of the above-mentioned institutions and traders involved in the implementation of air transport and the exploration of the effects of aerial surveys? The answers to this and similar questions will be widely presented in this article.

6

Polish Railway Safety Performance in 2016

Mindur L., Sitarz M., Wachnik R.

Logistics and Transport

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2017

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Vol. 36, No. 4

5--14

EN

In comparison, railways are the safest mode of land transport, not only regarding pure safety performance indicators but also considering external costs to society and to a member state. As for Polish railways, the year 2016 was the safest since 2008 even despite the growth of the railway market. There are still elements that need to be taken care of, such as continuous improvement of safety culture so that there can be a consistency in safety statistics, and improvement of total safety performance. The other key aspect is the analysis of human factor with the involvement of professionals in the area of human performance since it seems that current activities are insufficient. Authors would like to summarise this short article regarding railway safety performance by saying that undoubtedly, railways are constantly the mass transport mode to choose regarding the safety of travel.

7

Identifying Training Deficiencies in Military Pilots by Applying the Human Factors Analysis and Classification System

Li W. C., Harris D.

International Journal of Occupational Safety and Ergonomics

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2013

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Vol. 19, No. 1

3--18

EN

Without accurate analysis, it is difficult to identify training needs and develop the content of training programs required for preventing aviation accidents. The human factors analysis and classification system (HFACS) is based on Reason's system-wide model of human error. In this study, 523 accidents from the Republic of China Air Force were analyzed in which 1762 human errors were categorized. The results of the analysis showed that errors of judgment and poor decision-making were commonly reported amongst pilots. As a result, it was concluded that there was a need for military pilots to be trained specifically in making decisions in tactical environments. However, application of HFACS also allowed the identification of systemic training deficiencies within the organization further contributing to the accidents observed.

8

Causation of Severe and Fatal Accidents in the Manufacturing Sector

Carillo-Castrillo J. A., Rubio-Romero J. C., Onieva L.

International Journal of Occupational Safety and Ergonomics

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2013

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Vol. 19, No. 3

423--434

EN

The main purpose of this paper is to identify the most frequent causes of accidents in the manufacturing sector in Andalusia, Spain, to help safety practitioners in the task of prioritizing preventive actions. Official accident investigation reports are analyzed. A causation pattern is identified with the proportion of causes of each of the different possible groups of causes. We found evidence of a differential causation between slight and non-slight accidents. We have also found significant differences in accident causation depending on the mechanism of the accident. These results can be used to prioritize preventive actions to combat the most likely causes of each accident mechanism. We have also done research on the associations of certain latent causes with specific active (immediate) causes. These relationships show how organizational and safety management can contribute to the prevention of active failures.