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- Title
Analysis of Taxiing Performance of Single Strut Landing Gear Based on ISD.
- Authors
Yu WANG; Changming ZHANG; Peng WANG; Xuan CAO; Zhan GE
- Abstract
In this paper, the inerter is introduced to form the "inerter-spring-damper" landing gear (ISDLG) based on the "spring-damper" landing gear (SDLG), and the taxiing dynamic models of both are established. Taking fuselage acceleration, buffer stroke, and dynamic tire load as performance indexes, the parameters of the ISDLG are optimized using a multi-objective genetic optimization algorithm. In MATLAB/Simulink environment, SDLG and ISDLG are simulated in the time domain and frequency domain. The results show that compared with SDLG, the values of performance indexes of ISDLG are all reduced, especially at low frequencies. This demonstrates that ISDLG can effectively suppress the low frequency vibration of the fuselage and improve the ride comfort and handling stability of the aircraft when it taxis on the ground. In addition, the performance indexes of the two models will deteriorate with the increase of speed and the deterioration of road grade, but the extent to which performance indexes of ISDLG are superior to those of SDLG is increasingly evident. Through comparison, it is also found that ISDLG can effectively improve the vibration caused by the deterioration of the road grade.
- Subjects
LANDING gear; OPTIMIZATION algorithms; FREQUENCIES of oscillating systems; PERFORMANCE of tires; DYNAMIC loads
- Publication
Mechanika, 2023, Vol 29, Issue 6, p486
- ISSN
1392-1207
- Publication type
Article
- DOI
10.5755/j02.mech.33571