Degradation Identification of an EHA Piston Pump by Analysis of Load-Holding States

Authors

  • Yannick Duensing RWTH Aachen University, Institute for Fluid Power and Systems, Aachen, Germany https://orcid.org/0009-0002-2356-424X
  • Amos Merkel RWTH Aachen University, Institute for Fluid Power and Systems, Aachen, Germany
  • Katharina Schmitz RWTH Aachen University, Institute for Fluid Power and Systems, Aachen, Germany

DOI:

https://doi.org/10.13052/ijfp1439-9776.2528

Keywords:

Electro-hydrostatic Actuator (EHA), load-holding, wear, condition monitoring

Abstract

To achieve the goal of more electric aircrafts current research investigates the frontline capabilities of electro-hydrostatic actuators (EHA) as substitution for conventional hydraulic flight control systems. Due to durability limitations, EHAs are to date only utilized as backup. In this paper the design of EHAs and the impact of the challenging working condition on the health status are presented. A longevity test bench, as well as developed test profile to cover real world operation are explained. Lastly, measurements of load-holding modes are analyzed in detail and insight about run-ins, temperature dependencies and wear-related efficiency losses are gained.

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Author Biographies

Yannick Duensing, RWTH Aachen University, Institute for Fluid Power and Systems, Aachen, Germany

Yannick Duensing received a bachelor’s degree in mechanical engineering from RWTH Aachen University in 2016 and a master’s degree in mechanical engineering from RWTH Aachen University in 2019. He is currently working as a Research Associate at the Institute for Fluid Power Drives and Systems at RWTH Aachen University. His research areas include condition monitoring of mobile machinery and axial piston pumps, data analysis, and machine learning.

Amos Merkel, RWTH Aachen University, Institute for Fluid Power and Systems, Aachen, Germany

Amos Merkel received a bachelor’s degree in mechanical engineering from RWTH Aachen University in 2016 and a master’s degree in mechanical engineering from RWTH Aachen University in 2018. He is currently working as a Research Associate and deputy chief engineer at the Institute for Fluid Power Drives and Systems at RWTH Aachen University. His research areas include hydro-mechanical control design, pump robustness and electro-hydrostatic actuators.

Katharina Schmitz, RWTH Aachen University, Institute for Fluid Power and Systems, Aachen, Germany

Katharina Schmitz received a graduate’s degree in mechanical engineering from RWTH Aachen University in 2010 and an engineering doctorate from RWTH Aachen University in 2015. She is currently the director of the Institute for Fluid Power Drives and Systems, RWTH Aachen University.

References

Moir, I.; Seabridge, A.G. Aircraft systems: Mechanical, electrical, and avionics subsystems integration, 3rd ed.; Wiley: Chichester West Sussex England, Hoboken NJ, 2008.

Murrenhoff, H.; Eckstein, L. Fluidtechnik für mobile Anwendungen: Umdruck zur Vorlesung, 5th ed.; Shaker: Aachen, 2011.

Álvarez, M. Sistema Hidraulico: Prezi, ATA 29, 2019.

Habibi, S.; Goldenberg, A. Design of a new high-performance electrohydraulic actuator. IEEE/ASME Trans. Mechatron., 2000, 5, 158–164.

Merkel, A.; Duensing, Y.; Schmitz, K. Electro-hydrostatic Actuators in Primary Flight Control – Lifetime and Reliability: 10th International Conference on Fluid Power Transmission and Control, 2021.

Ivantysyn; Ivantysynova – Hydrostatic Pumps and Motors Prindples, Design, Performance, Modelling, Analysis, Control and Testing - 2001.

Dominique van den Bossche. The A380 flight control electrohydrostatic actuators, achievements and lessons learned.

Roboam, X.; Sareni, B.; Andrade, A. More Electricity in the Air: Toward Optimized Electrical Networks Embedded in More-Electrical Aircraft. EEE Ind. Electron. Mag., 2012, 6, 6–17.

Chao, Q.; Zhang, J.; Xu, B.; Huang, H.; Pan, M. A Review of High-Speed Electro-Hydrostatic Actuator Pumps in Aerospace Applications: Challenges and Solutions. Journal of Mechanical Design, 141, 50801.

Shi, C.; Wang, S.; Wang, X.; Zhang, Y. Variable load failure mechanism for high-speed load sensing electro-hydrostatic actuator pump of aircraft. Chinese Journal of Aeronautics, 2018, 31, 949–964.

Bildstein M. Application of electro-hydrostatic actuators (EHA) for future aircraft primary flight controls. 1. Internationales Fluidtechnisches Kolloquium, Aachen, 1998.

Noah D. Manring, Viral S. Mehta, Bryan E. Nelson, Kevin J. Graf, Jeff L. Kuehn. Scaling the Speed Limitations for Axial-Piston Swash-Plate Type Hydrostatic Machines. Journal of Dynamic Systems, Measurement, and Control, 2014.

Wegner, S.; Gels, S.; Jang, D.S.; Murrenhoff, H. In: ASME/BATH 2015 Symposium on Fluid Power and Motion Control, ASME/BATH 2015 Symposium on Fluid Power and Motion Control, Chicago, Illinois, USA, 12.10.2015 – 14.10.2015; American Society of Mechanical Engineers, 10122015.

Röben, T.; Viennet, E.; Wider, H. Robustness of the Liebherr-Aerospace Technology for Future Flight Control Application. In: 12th IFK, 2020.

L. Shang & M. Ivantysynova. Port and case flow temperature prediction foraxial piston machines. International Journal of Fluid Power, 2015.

Roman Ivantysyn, Prof. Dr. Jürgen Weber. Investigation of the Thermal Behaviour in the Lubricating Gap of an Axial Piston Pump with Respect to Lifetime. In: 11th IFK 2018; pp. 68–83.

Ibuki, T.; Hibi, A., Ichikawa, T.; Yokote, H. Suction Performance of Axial Piston Pump: 2nd Report, Experimental Results. In: JSME; Vol. 20(145); pp. 827–833.

Totten, G.E.; Sun, Y.H.; Bishop, R.J., JR.; Lin, X. Hydraulic System Cavitation: A Review. SAE Transactions, 1998, pp. 368–380.

Schleihs, C.W.; Viennet, E.; Deeken, M.; Ding, H.; Xia, Y.; Lowry, S.; Murrenhoff, H. 3D-CFD simulation of an axial piston displacement unit. In: 9th International Fluid Power Conference (9th IFK) : 24th – 26th March 2014; Vol. 3; pp. 332–343.

Harris, R.M.; Edge, K.A.; Tilley, D.G. The Suction Dynamics of Positive Displacement Axial Piston Pumps. Journal of Dynamic Systems, Measurement, and Control, 1994, 116, 281–287.

Kunkis, M.; Weber, J. In: BATH/ASME 2016 Symposium on Fluid Power and Motion Control, BATH/ASME 2016 Symposium on Fluid Power and Motion Control, Bath, UK, 07.09.2016 – 09.09.2016; American Society of Mechanical Engineers, 09072016.

Merkel, A.; Duensing, Y.; Katharina, S. Identification of wear progression due to variating operation modes of small high dynamic piston pumps used in frontline flight control application. The 13th International Fluid Power Conference, 2022.

Massimo Borghi, Emiliano Specchia, Barbara Zardin; Enzo Corradini. The Critical Speed of Slipper Bearings in Axial Piston Swash Plate Type Pumps and Motors. In: Proceedings of the ASME 2009 Dynamic Systems and Control Conference.

Hong, H.; Zhao, C.; Zhang, B.; Bai, D.; Yang, H. Flow Ripple Reduction of Axial-Piston Pump by Structure Optimizing of Outlet Triangular Damping Groove. Processes, 2020, 8, 1664.

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Published

2024-07-30

How to Cite

Duensing, Y. ., Merkel, A. ., & Schmitz, K. . (2024). Degradation Identification of an EHA Piston Pump by Analysis of Load-Holding States. International Journal of Fluid Power, 25(02), 273–290. https://doi.org/10.13052/ijfp1439-9776.2528

Issue

2024: Vol 25 Iss 2

Section

GFPS 2022