Transactions of Nanjing University of Aeronautics & Astronautics
Analysis of Sea-Based Landing Dynamics of Reusable Landing Vehicle Considering Mechanism Flexibility
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
Vertical landing and recovery of a launch vehicle at sea can further reduce the launch cost of commercial space-flight， so this paper investigates the issue of reusable launch vehicle landing at sea. A vehicle landing dynamics model considering mechanism flexibility is established， and vehicle drop tests under various operating conditions are conducted. By comparing the vehicle drop test， the simulations of the dynamics model are consistent with test results， and the vehicle landing dynamics model considering the landing mechanism flexibility can simulate the vertical landing process of the vehicle more effectively than the rigid body dynamics model， which is more meaningful to guide the design of the reusable vehicle landing mechanism. Based on the vehicle landing dynamics model， a deck motion model and wind disturbance model are added to simulate the vehicle vertical landing dynamics at sea. The simulation results show that the sea landing causes the peak acceleration response of the vehicle， the main strut load and the buffer compression stroke to become larger， and there is a significant decrease in the landing stability of the vehicle.
Keywords:
Project Supported:
This research was supported by the National Natural Science Foundation of China （No. 12502042）， the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation （No.GZC20252752）， and Jiangsu Funding Program for Excellent Postdoctoral Talent.
Clc Number:
V44
Articles
Mobile website
