A Standard Mission Profile for Hybrid-Electric Regional Aircraft based on Web Flight Data

Jux, Benedict; Foitzik, Simon; Doppelbauer, Martin

doi:10.1109/pedes.2018.8707564

Cited by 15 publications

(12 citation statements)

References 8 publications

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“…It is anticipated that, as the application of ‘Big-Data’ continues to grow within fatigue design and the wider aerospace sector (20) , ADS-B data will provide a vital source of data to challenge previous design assumptions, support future design programs and implement in-service monitoring of landing gear components. Within the wider aerospace sector, it is pleasing to see that ADS-B datasets have already been exploited during the development of aircraft mission profiles to support the future design of commercial hybrid-electric aircraft by Jux et al (50) .…”

Section: Discussionmentioning

confidence: 99%

Landing gear ground manoeuvre statistics from automatic dependent surveillance-broadcast transponder data

Hoole¹,

Sartor²,

Booker³

et al. 2021

Aeronaut. j.

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Landing gear are exposed to cyclic loads from the ground manoeuvres that aircraft perform in-service. Variability is observed in the loading magnitude associated with ground manoeuvres, along with the per-flight variability in ground manoeuvre occurrence and sequencing. Whilst loading magnitude variability has been widely characterised, significant assumptions are required regarding manoeuvre occurrence and sequencing when constructing landing gear load spectra for fatigue design. These assumptions are required due to the limited availability of data concerning ground manoeuvre occurrence and sequencing relating to aircraft in-service and require validation to facilitate the design of more efficient components. ‘Big-Data’ approaches, employing Automatic Dependent Surveillance-Broadcast (ADS-B) transponder data, enable aircraft ground tracks to be identified. This paper presents a methodology to characterise the variability in ground manoeuvre occurrence and sequencing using ADS-B data sourced from Flightradar24® for a wide-body aircraft fleet. Using statistics generated for the fleet, it was identified that significant variability exists in the occurrence and sequencing of turning and braking manoeuvres. The statistics also validate existing assumptions, including that the proportional share of left and right turning manoeuvres is equal. Finally, this paper discusses the utility of ADS-B datasets for constructing landing gear load spectra and monitoring of landing gear in-service.

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Section: Discussionmentioning

confidence: 99%

Landing gear ground manoeuvre statistics from automatic dependent surveillance-broadcast transponder data

Hoole¹,

Sartor²,

Booker³

et al. 2021

Aeronaut. j.

View full text Add to dashboard Cite

show abstract

“…The system is rated for a total power of 4.1 MW, suitable for a twin-engine single-aisle 70-seater aircraft [15]. The aircraft data is very similar to that of an ATR 72-600; see Table II.…”

Section: Objectives Scope and Simplificationsmentioning

confidence: 99%

“…The mission profile and atmospheric conditions have a significant impact on the rating of the components. A detailed mission profile for the hybrid-electric regional aircraft in Table II has been developed by Jux et al [15]. It is adopted in this work due to its relevant and detailed power profile.…”

Section: Mission Profile and Atmospheric Conditionsmentioning

confidence: 99%

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Dual Use of Liquid Hydrogen in a Next-Generation PEMFC-Powered Regional Aircraft With Superconducting Propulsion

Hartmann

Nøland

Nilssen

et al. 2022

IEEE Trans. Transp. Electrific.

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In this paper, we present a comprehensive model framework for a disruptive cryo-electric propulsion system intended for a hydrogen-powered regional aircraft. The main innovation lies in the systematic treatment of all the electrical and thermal components to model the overall system performance. One of the main objectives is to study the feasibility of using the liquid hydrogen (LH 2 ) fuel to provide cryogenic cooling to the cryo-electric propulsion system, and thereby enable ultracompact designs. Another aim has been to identify the optimal working point of the fuel cell to minimize the overall propulsion system's mass. The full mission profile is evaluated to make the analysis as realistic as possible. Analyses are done for three different 2035 scenarios, where available data from the literature are projected to a baseline, conservative, and optimistic scenario. The results show that the total propulsion system's power density can be as high as 1.63 kW/kg in the optimistic scenario and 0.79 kW/kg in the baseline scenario. In the optimistic scenario, there is also sufficient cryogenic cooling capacity in the hydrogen to secure proper conditions for all components, whereas the DC/DC converter falls outside the defined limit of 110 K in the baseline scenario.

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“…Here, a peak power of approximately 3.7 MW during take-off and climb, and descent can be assumed, based on conventional turbines for a short-range aircraft [41]. At cruising speed and altitude, a continuous power of approximately 0.6 times the peak power is needed [42]. Based on this data, an overall peak power demand of 4 MW is estimated.…”

Section: Hvdc Grids For Aircraft Applicationmentioning

confidence: 99%

Discussion on Electric Power Supply Systems for All Electric Aircraft

et al. 2020

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The electric power supply system is one of the most important research areas within sustainable and energy-efficient aviation for more-and especially all electric aircraft. This paper discusses the history in electrification, current trends with a broad overview of research activities, state of the art of electrification and an initial proposal for a short-range aircraft. It gives an overview of the mission profile, electrical sources, approaches for the electrical distribution system and the required electrical loads. Current research aspects and questions are discussed, including voltage levels, semiconductor technology, topologies and reliability. Because of the importance for safety possible circuit breakers for the proposed concept are also presented and compared, leading to a initial proposal. Additionally, a very broad review of literature and a state of the art discussion of the wiring harness is given, showing that this topic comes with a high number of aspects and requirements. Finally, the conclusion sums up the most important results and gives an outlook on important future research topics. INDEX TERMS Aviation, aerospace electronics, MEA, AEA, electric power supply systems, dc-dc power converters, power semiconductor devices, wide bandgap semiconductors, high voltage direct current (HVDC), circuit breaker, hybrid circuit breaker.

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A Standard Mission Profile for Hybrid-Electric Regional Aircraft based on Web Flight Data

Cited by 15 publications

References 8 publications

Landing gear ground manoeuvre statistics from automatic dependent surveillance-broadcast transponder data

Landing gear ground manoeuvre statistics from automatic dependent surveillance-broadcast transponder data

Dual Use of Liquid Hydrogen in a Next-Generation PEMFC-Powered Regional Aircraft With Superconducting Propulsion

Discussion on Electric Power Supply Systems for All Electric Aircraft

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