AU > Faculty > Aviation > Prof. Alireza Ahmadi

Prof. Alireza Ahmadi

Prof. Alireza Ahmadi

Aviation

Professor  – School of Aviation
Acting Head of Aviation Academic Programs

 

Qualification: Ph.D. in Operation and Maintenance Engineering, Luleå University of Technology , Luleå-Sweden,

Research

  • Research Interest:

Data Science, RAMS engineering and modeling, Reliability engineering, Reliability modeling and Analysis, Technical Risk Analysis, System Safety Assessment, Safety Management System, Maintenance Modeling and  Optimization, Aircraft Maintenance Analysis, Life Cycle Cost Optimization, Smart Assets, Diagnosis prognosis and health management, Transport infrastructure maintenance, Climate adaptation of Infrastructure Maintenance.

  • Research Grants:

“Climate Adaptation of Railway Maintenance (ClimRail)” at LTU was funded (total: 5.05 MSEK) for 3 years (2023–2026) by Swedish xxxxxxxxxx (Vinnova), and co-funded by four Swedish Railway Authorithy (Trafikverket ), LKAB and BDX ab. Focus: to develop RCM-based decision support methodologies and tools for adaptation of railway infrastructure to the adverse effect of climatic hazards.
“Simulation of railway track geometry and intelligent maintenance planning (SIMTRACK)” at LTU was funded (total: 6.6 MSEK) for 3 years (2017–2020) by BVFF-Trafikverket and co-funded by four Swedish companies. Consortium involved Lulea University of Technology, Sweden road and transportation research institute (VTI1), Infranord AB, Luleå Railway Research Center. Focus: to develop simulation-based platform for optimization of track geometry maintenance planning and scheduling.
“Smart Maintenance and the Rail Traveller Experience (SMaRTE)” at LTU was funded (total: 544 K EURO) for 2 years (2017–2019) by Horizon 2020-Shift2Rail Joint Undertaking. Consortium involved 4 universities2, and 7 companies3. Focus: Development of an overall maintenance concept for condition-based maintenance (CBM) for passenger trains; and the integration of concepts for monitoring of infrastructure.
“Efficient Performance Based Air Vehicle Maintenance” at LTU was funded (total: 10 MSEK) for 4 years (2013–2017) by VINNOVA (Swedish National Aviation Research Program – NFFP6). Consortium involved Lulea University of Technology, SAAB Support and Services, SAAB Aeronautics and Systecon AB. Focus: Optimizing maintenance resources during aircraft retirement phase.

“Enhanced Life Cycle Assessment for Performance-Based Logistics” at LTU was funded (total: 7.6 MSEK) for 4 years (2009–2013) by VINNOVA (Swedish National Aviation Research Program – NFFP6). Consortium involved Lulea University of Technology, and SAAB Support and Services. Focus: Data mining of operational data for analysis of aircraft maintenance and support systems throughout life cycles.

Publications

Journal Publication:

  1. Khosravi, M., Ahmadi, A. and Nissen, A, (2023) “A Multi-objective Approach for Position Alignment of Track Measurements”, Engineering Failure Analysis. 107260. https://doi.org/10.1016/j.engfailanal.2023.107260
  2. Marchetta, V., Graziano, A Di., Soleimanmeigouni I., Ahmadi, A. (2022) Proceedings of the Institution of Mechanical Engineers, Part F: Journal of …Railway degradation behaviour analysis in narrow-gauge railways: A local-railway case study. https://doi.org/10.1177/09544097221136912.
  3. Khosravi, M., Soleimanmeigouni, i., Ahmadi, A., Nissen, A., Xiao, X, (2022) Modification of correlation optimized warping method for position alignment of condition measurements of linear assets, Measurement 201, 111707. https://doi.org/10.1016/j.measurement.2022.111707
  4. Khosravi, M., Soleimanmeigouni, I., Ahmadi, A., Nissen A., (2021) Reducing the positional errors of railway track geometry measurements using alignment methods: A comparative case study. Journal of Measurement, Volume 178, June 2021, 109383, https://doi.org/10.1016/j.measurement.2021.109383 .
  5. H Khajehei, A Ahmadi, I Soleimanmeigouni, M Haddadzade, A Nissen, (2022) Prediction of track geometry degradation using artificial neural network: a case study, International Journal of Rail Transportation 10 (1), 24-43
  6. Khajehei, H., Haddadzade, M., Ahmadi, A., Soleimanmeigouni, I., Nissen, A. (2021) Optimal opportunistic tamping scheduling for railway track geometry, Structure and Infrastructure Engineering 17 (10), 1299-1314.
  7. Khajehei, H., Soleimanmeigouni, I., Ahmadi, A., Nissen, A., Kumar U. (2021) Investigation of track geometry defects on a heavy-haul railway line., Journal of transportation engineering, Part A: Systems 147 (9), 05021004
  8. Khajehei, H., Ahmadi, A., Soleimanmeigouni, I., , M Haddadzade, A., Nissen. (2021) Prediction of track geometry degradation using artificial neural network: a case study, International Journal of Rail Transportation, 1-20
  9. Soleimanmeigouni, I., Ahmadi, A., Khajehei, H., Nissen, A. (2020), Investigation of the effect of the inspection intervals on the track geometry condition, Structure and Infrastructure Engineering 16 (8), 1138-1146.
  10. Soleimanmeigouni, I., Ahmadi, A., Nissen, A., Xun, X., (2019), Prediction of railway track geometry defects: a case study, Journal of Structure and Infrastructure Engineering. Pp. 1-15. https://doi.org/10.1080/15732479.2019.1679193
  11. Block, J., Ahmadi, A., Xun, X., & Kumar, U. (2019), SparesProvisioning Strategy for Periodically Replaced Units within the Fleet Retirement Period, International Journal of System Assurance Engineering and Management, Vol. 10, No.3, pp. 299-315, https://doi.org/10.1007/s13198-019-00791-z
  12. Khajehei, H., Ahmadi, A., Soleimanmeigouni, I., and Nissen, A. (2019), Allocation of effective maintenance limit for railway track geometry’, Structure and Infrastructure Engineering, Pages pp. 1597-1612, Vol. 15 No.12, https://doi.org/10.1080/15732479.2019.1629464
  13. Soleimanmeigouni, I., Ahmadi, A., Kumar, U. (2018) Track geometry degradation and maintenance modeling: A review, in Institution of Mechanical Engineers. Proceedings. Part F: Journal of Rail and Rapid Transit. Vol. 232, No. 1, pp. 73–102. https://doi.org/10.1177/0954409716657849
  14. Mahmood, Y.A., Garmabaki A.H S, Ahmadi, A., and Verma, A.K. (2018), Reliability Model for Frequency Converter in Electrified Railway, International Journal of Electrical Power and Energy Systems, Vol. 94, pp. 385–392. https://doi.org/10.1016/j.ijepes.2017.08.002
  15. Ghodrati, B., Ahmadi, A., & Galar, D. (2017), Reliability Analysis of Switches and Crossings : A Case Study in Swedish Railway. International Journal of Railway Research, 4(1), 1–11. http://ijrare.iust.ac.ir/article-1-124-en.html
  16. Soleimanmeigouni I., Ahmadi, A., Xiao X., Xie, M., Nissen, A. and Kumar, U., (2017), Modelling the evolution of ballasted railway track geometry by a two-level piecewise model, Structure and Infrastructure Engineering, Vol.14, No.1, pp. 33-45. https://doi.org/10.1080/15732479.2017.1326946
  17. Pourgol-Mohammad, M., Hejazi, A., Soleimani, M., Ghasemi, P., Ahmadi A., Jalalivahid, D. (2017) Design for Reliability of Automotive Systems; Case Study of Dry Friction Clutch, International Journal of System Assurance Engineering and Management. Vol. 8, No. 3, pp. 572–583. https://doi.org/10.1007/s13198-017-0644-2
  18. Pourgol-Mohammad, M., Makarachib P., Soleimanib, M., and Ahmadi, A. (2017) Reliability Enhancement of Centrifugal Pumps by Multi-Objective Genetic Algorithm Optimization, International Journal of COMADEM, Vo 20, No. 20, pp. 23-30. https://www.scopus.com/record/display.uri?origin=inward&partnerID=40&eid=2-s2.0-85048732685
  19. Modiri, B., Pourgol-Mohammad, M., Yazdani M., Salimi H., Salehpour-Oskouei F., and Ahmadi, A. (2017) Stochastic lifetime estimation of pressurized gas pipeline, Case study of the urban gas pipeline, International Journal of COMADEM, Vo20., No. 2 pp. 31-37. http://ltu.diva-portal.org/smash/record.jsf?pid=diva2%3A1172537&dswid=-2840
  20. Ahmadi, A., Soleimanmeigouni, I., and Block., J. Letot, C. (2016), Optimum failure management strategy for periodically inspected units with imperfect maintenance. Conference paper in Journal, 8th IFAC Conference on Manufacturing Modeling, Management and Control, Troyes, FRANCE, Troys, France. Vol. 49, No.12, Pages 799–804.
    https://reader.elsevier.com/reader/sd/pii/S2405896316311582?token=81B57D94D458DD834FF558B3DC1CC4E9AA854DCAD1B320F66BD41163A940A5E91DA8213A79195E67A60417F02274F39D
  21. Soleimanmeigouni, I., Ahmadi, A., Arasteh khouy, I., Letot, C. (2016) Evaluation of tamping effect on the track geometry condition: a case study, In: Institution of Mechanical Engineers. Proceedings. Part F: Journal of Rail and Rapid Transit. Vol. 232, No.2, pp. 408–420. https://doi.org/10.1177/0954409716671548
  22. Soleimani Garmabaki, Ahmadi, A., Block, J., Pham, H., & Kumar, U. (2016), A Decision Framework for Reliability Model Selection of Multiple Repairable Units. Reliability Engineering & System Safety. Vol. 150, pp. 78–88. https://doi.org/10.1016/j.ress.2016.01.020
  23. Murthy DNP, Karim MR, Ahmadi A. (2015), Data management in maintenance outsourcing. Reliability Engineering & System Safety, Vol. 142, pp.100-110. https://doi.org/10.1016/j.ress.2015.05.002
  24. Ahmadi, A., Amir.H S.Garmabaki, Behzad Ghodratib and Uday Kumar, (2015), Optimum inspection interval for hidden functions during extended life. International Journal of COMADEM, Vol. 18, No. 3, pp. 45-49. http://ltu.diva-portal.org/smash/get/diva2:975561/FULLTEXT01.pdf
  25. Soleimani Garmabaki, A., Ahmadi, A. & Mahmood, Y., Barabadi, A. (2015), Reliability Modeling of Multiple Repairable Units. Journal of Quality and Reliability Engineering International. https://doi.org/10.1002/qre.1938
  26. Mahmood, Y.A., Ahmadi, A., Verma, A.K. (2014), Evaluation and Selection for Availability Improvement of Frequency Converters in Electrified Railway. International Journal of Power and Energy Systems, Vol. 34, No. 4., pp. 162-172. DOI: 10.2316/Journal.203.2014.4.203-0108
  27. Al-Chalabi H, Lundberg J, Ahmadi A, Jonsson A. (2015), Case study: model for economic lifetime of drilling machines in the Swedish mining industry. The Engineering Economist. Vol. 60, pp. 138-54. https://doi.org/10.1080/0013791X.2014.952466
  28. Al-Chalabi HS, Lundberg J, Al-Gburi M, Ahmadi A, Ghodrati B. (2015), Model for economic replacement time of mining production rigs including redundant rig costs. Journal of Quality in Maintenance Engineering, Vol. 21, No. 2, pp. 207-226. https://doi.org/10.1108/JQME-07-2014-0041
  29. Mahmood, Y.A., Ahmadi, A., Verma, A.K. (2013), Identification of Frequency Converter Models for Availability Improvement. International Journal of Electrical Engineering, Vol. 20, No. 4, pp. 159-170.
  30. Mahmood, Y.A.; Ahmadi, A.; Verma, A.K.; Karim, R.; Kumar, U. (2013), Availability and Reliability Performance Analysis of Traction Frequency Converters – a case study. International Review of Electrical Engineering, Vol. 8, No. 4, pp. 1231-1242. https://www.praiseworthyprize.org/jsm/index.php?journal=iree&page=article&op=view&path%5B%5D=12842
  31. Block, J., Ahmadi, A., Tyrberg, T. Söderholm, P. (2014) Part-out-based Spares Provisioning Management: A Military Aviation Maintenance Case Study. International Journal of Quality in Maintenance Engineering.Vol.20, No. 1, pp. 76-95. https://doi.org/10.1108/JQME-09-2013-0060
  32. Block, J., Ahmadi, A. Tyrberg, T. and Kumar, U. (2014) Fleet-level Reliability of Multiple Repairable Units: a Parametric Approach using the Power Law Process. International Journal of Performability Engineering, Vol. 10, No. 3, pp. 239-250. http://www.ijpe-online.com/EN/10.23940/ijpe.14.3.p239.mag
  33. Block, J., Ahmadi, A. Tyrberg, T. and Kumar, U. (2013) Fleet-level Reliability Analysis of Repairable Units: A non-Parametric Approach using the Mean Cumulative Function. International Journal of Performability Engineering. Vol. 9, No. 3, pp. 335. 346. http://www.ijpe-online.com/EN/10.23940/ijpe.13.3.p333.mag
  34. Gupta, S., Rahber, A., Ahmadi, A. and Kumar, U. (2013), A vector dissimilarity based approach for multi-criteria decision making. International Journal of System Assurance Engineering and Management, Vol. 4, No. 3, pp. 249-261.
  35. Mahmoud Y.A., Ahmadi A., Verma A. K., Srividya, A., Kumar, U. (2013) Fuzzy Fault Tree Analysis: A Review of Concept and Application. International Journal of Systems Assurance Engineering and Management, Vol. 4, No. 1, pp. 19-32. https://link.springer.com/article/10.1007/s13198-013-0145-x
  36. Garmabaki, A.H. S., Ahmadi, A., Kapur, P. K., Kumar, U. (2013) Predicting Software Reliability in a Fuzzy Field Environment. International Journal of Reliability, Quality and Safety Engineering, Vol. 20, No. 3, No. 3, ID 13400019. https://doi.org/10.1142/S0218539313400019
  37. Hoseini, S. H., Ahmadi, A., Ghodrati, B., and Kumar, U. (2013) Reliability-Centered Maintenance for Spray Jets of Coal Shearer Machine. International Journal of Reliability, Quality and Safety Engineering, Vol. 20, No. 3, ID No. 1340006. https://doi.org/10.1142/S0218539313400068
  38. Ghodrati, B., Ahmadi, A., and Galar, D. (2013) Spare Parts Estimation for Machin Availability Improvement Addressing its Reliability and Operating Environment– Case Study. International Journal of Reliability, Quality and Safety Engineering, Vol. 20, No. 3, ID No. 1340005, 15 pp. https://doi.org/10.1142/S0218539313400056
  39. Ahmadi A., Gupta S., Ghodrati, B., Galar, D. (2012), Estimation of Economic Consequences of Aircraft System Failures. Communications in Dependability and Quality Management, An International Journal. Vol. 15, No. 1, pp. 39-49.
  40. Ghodrati, B., Markeset, T., Ahmadi, A. and Kumar, U. (2011), Enhancement of Mining Machinery Performance through Supportability. International Journal of COMADEM, Vol. 14, No. 2, pp. 35-43. http://www.comadem.com/journal/past-issues/
  41. Ahmadi, A., Arasteh-Khouy, I., Kumar, U. and Schunnesson, H. (2009), Selection of maintenance strategy, using analytical hierarchy process. Communications in Dependability and Quality Management, Vol. 12, No. 1, pp. 121-132.
  42. Ahmadi, A. and Kumar, U. (2011), Cost based risk analysis to identify inspection and restoration intervals of hidden failures subject to aging. IEEE Transaction on Reliability. , Vol. 60, No. 1, pp. 197-209. https://ieeexplore.ieee.org/document/5703163
  43. Ahmadi, A., Söderholm, P. and Kumar, U. (2010), On aircraft maintenance programme development. Journal of Quality in Maintenance Engineering, Vol. 16, No. 3, pp. 229-255. https://www.emerald.com/insight/content/doi/10.1108/13552511011072899/full/html
  44. Ahmadi, A., Gupta, S., Karim, R. and Kumar, U. (2010), Selection of Maintenance Strategy for Aircraft Systems Using Multi-Criteria Decision Making Methodologies. International Journal of Reliability, Quality and Safety Engineering, Vol. 17, No. 3, pp. 223-243. https://doi.org/10.1142/S0218539310003779
  45. Ahmadi, A., Kumar, U. and Söderholm, P. (2010), Operational Risk of Aircraft System Failure. International Journal of Performability Engineering, Vol. 6, No. 2, pp. 149-158. http://www.ijpe-online.com/EN/10.23940/ijpe.10.2.p149.mag

Edited Book/Proceeding/Special issues:

  • Karim, A., Ahmadi, A., Soleimanmeigouni I., and Rao, R. (2016) International Congress and Workshop on Industrial AI 2021. (Lecture notes in mechanical engineering). Springer International Publishing, Switzerland. DOI: 10.1007/978-3-319-23597-4, ISBN: 9783319235967. https://www.springer.com/gp/book/9783319235967
  • Kumar, U., Ahmadi, A., Verma, A.K., Varde, P. (2016) Current Trends in Reliability, Availability, Maintainability and Safety: An Industry Perspective. (Lecture notes in mechanical engineering). Springer International Publishing, Switzerland. DOI: 10.1007/978-3-319-23597-4, ISBN: 9783319235967. https://www.springer.com/gp/book/9783319235967
  • Pourgol-Mohammad, M. and Ahmadi, A. (2017), Special issue of “IREC2016 conference selected papers.” International Journal of System Assurance Engineering and Management 8(3): 529-531. https://doi.org/10.1007/s13198-017-0662-0
  • Larsson Kråik, P.O, and Ahmadi, A. (2019), “Proceeding of the “International Heavy Haul Conference”, Narvik, Norway. International Heavy Haul Association (IHHA), Virginia, USA. ISBN: 9780911382709. (Digital copy is available on request)

Curriculum Vitae

Prof. Alireza Ahmadi