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Heuristic Approach for Aircraft Assignment and Maintenance Scheduling of On-demand Urban Air Mobility Vehicles

Sieb, Patrick and Meissner, Robert and Wicke, Kai and Wende, Gerko (2023) Heuristic Approach for Aircraft Assignment and Maintenance Scheduling of On-demand Urban Air Mobility Vehicles. American Institute of Aeronautics and Astronautics. 2023 AIAA Aviation and Aeronautics Forum and Exposition (AIAA AVIATION Forum), 2023-06-12 - 2023-06-16, San Diego, CA, United States of America. doi: 10.2514/6.2023-3624.

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Official URL: https://doi.org/10.2514/6.2023-3624


The development vehicles and concepts for Urban Air Mobility (UAM) has been encouraged the technology enhancements such as the introduction of the 5G standard for mobile networks or continuous improvements in battery performance. While past research efforts have covered social acceptance of airborne vehicles in urban areas, autonomous piloting, their integration into airspace and the development of the aircraft themselves, maintenance and scheduling aspects have hardly been considered thus far. Simultaneously, the nature of on-demand operation for Urban Air Mobility Vehicles (UAMVs) differs from traditional airline operations as future utilization and aircraft positions are only known a few minutes in advance. As a consequence, established concepts, known as Aircraft Maintenance Routing Problems (AMRPs) that harmonize the routing of airliners with maintenance activities, cannot be applied to the maintenance scheduling of UAMVs. Within this study, a heuristic approach is presented to assign aircraft to flight missions under consideration of their imminent maintenance needs. The key principle of this assignment strategy is the use of a weighted bidding model that incorporates aspects of dead head flight, as well as avoidable waiting times for the completion of maintenance tasks. Ultimately, this approach will reduce conflicting situations for limited maintenance capacities for flight-hour-driven scheduled maintenance checks. The heuristic is implemented into a discrete events flight simulation, simulating 160 UAMVs in a generic UAM network with two off-grid maintenance facilities with a simulation time span of one year. The result of the proposed heuristic is compared to a baseline scenario in terms of accepted flight request rate, the average waiting time for maintenance completion, the average waiting time before commencement of a mission and the maintenance base utilization. Furthermore, different simulations are run with varying weighting factors for maintenance and operating aspects to examine possible improvements towards the heuristic’s performance. Hereby, the interlinking between operation and maintenance could be improved with the usage of the maintenance scheduling heuristic. As a result, the fleet maintenance waiting time could be reduced by a factor of 2.6 and the share of missed flight requests due to maintenance downtimes could be limited to one percent. Additionally, the utilization of the maintenance bases is also increased through the adapted scheduling and assignment heuristic

Item URL in elib:https://elib.dlr.de/195875/
Document Type:Conference or Workshop Item (Speech)
Title:Heuristic Approach for Aircraft Assignment and Maintenance Scheduling of On-demand Urban Air Mobility Vehicles
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Sieb, PatrickUNSPECIFIEDhttps://orcid.org/0000-0003-3316-5429UNSPECIFIED
Meissner, RobertUNSPECIFIEDhttps://orcid.org/0000-0002-5299-4006138360642
Wicke, KaiUNSPECIFIEDhttps://orcid.org/0000-0002-8220-6437UNSPECIFIED
Date:June 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:American Institute of Aeronautics and Astronautics
Keywords:UAM; Urban Ar Mobility, HorizonUAM, Maintenance Scheduling, Maintenance Planning, On-demand, On-demand Aviation
Event Title:2023 AIAA Aviation and Aeronautics Forum and Exposition (AIAA AVIATION Forum)
Event Location:San Diego, CA, United States of America
Event Type:international Conference
Event Start Date:12 June 2023
Event End Date:16 June 2023
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Air Transportation and Impact
DLR - Research area:Aeronautics
DLR - Program:L AI - Air Transportation and Impact
DLR - Research theme (Project):L - Air Transport Operations and Impact Assessment
Location: Hamburg
Institutes and Institutions:Institute of Maintenance, Repair and Overhaul > Product Life Cycle Management
Deposited By: Sieb, Patrick
Deposited On:10 Jul 2023 08:52
Last Modified:24 Apr 2024 20:56

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