Drop Dynamic Simulation for Landing Gear via SimMechanics

Abstract:

To better reflect the dynamic performance of landing gear, a hybrid modeling method based on Matlab/SimMechanics is proposed as our approach and drop simulations were carried out for it to verify our approach. Firstly, a widely used levered-suspension landing gear is chosen as studying subject. Secondly, the mathematic models of the respective landing gear subsystem were established for the bumper and the tire, while braking control system was imposed via Simulink. Thirdly, SimMechanics was used to integrate all the subsystems into a comprehensive unit by taking advantage of its capability of showing the joint constraint, force reaction of each part, and on-line control law imposing. Lastly drop simulation tests were done on the landing gear model to verify its validity. The simulation results show that our approach can effectively simulate the drop feature, and accordingly provides a foundation for retrofit design in the next step, and thus makes it is valuable for real engineering applications.

• Periodical: Advanced Materials Research (Volumes 694-697)
• Pages: 77-83
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.694-697.77
• Online since: May 2013
• Authors: Yong Ling Fu, Peng Zhang, Sheng Jun Li, Zhu Feng Li
• Keywords: Damper, Drop Test Simulation, Landing Gear, SimMechanics, Tire

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