Including Inerters in Aircraft Landing Gear Shock Strut to Improve the Touch-down Performance

Yuan Li, Jason Zheng Jiang, Pia Sartor, Simon A. Neild, Huailei Wang

Research output: Contribution to journalArticle (Academic Journal)peer-review

12 Citations (Scopus)
327 Downloads (Pure)


This paper presents the possibility of using inerter-based shock strut in a landing gear to improve aircraft touch-down performance. The inerter is a mechanical element with the property that the applied force is proportional to the relative acceleration between its terminals. The baseline performance of a traditional oleo-pneumatic shock strut is established using a simplified landing gear touch-down model. Several simple layouts and general transfer functions are used to represent the shock struts and time-domain optimisations are carried out to minimise the maximum strut load transmitted to the fuselage during touch-down. The performance benefits of several inerter-based shock strut configurations with the corresponding parameter values have been identified.
Original languageEnglish
Pages (from-to)1689-1694
Number of pages6
JournalProcedia Engineering
Early online date12 Sep 2017
Publication statusPublished - 2017
EventX International Conference on Structural Dynamics, EURODYN 2017 - Rome, Italy
Duration: 10 Sep 201713 Sep 2017
Conference number: 10

Bibliographical note

Type: Conference proceeding


  • Shock absorber
  • touch-down
  • strut load
  • passive network
  • inerter


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