The Technology Study on Side Tumbling Energy Absorption System of Railway Transportation for Solid Rocket Launch Vehicles
The safety of solid rocket launch vehicles under the abnormal side tumbling condition in the process of railway transportation is studied.Based on investigation and analysis of various vibration absorption schemes,the technical scheme of energy absorption system with the combination of cushion airbag and honeycomb is put forward.The side-rolling simulation analysis is carried out using Hypermesh and LS-DYNA software.The results show that the acceleration of the rocket's side-rolling down decreases from 27g to 8.91g,and the contact collision force between the launcher and the carriage decreases from 382.59kN to non-contact by using the above technical scheme.Meanwhile,it can obviously improve the safety of solid rocket launch vehicles under abnormal conditions such as railway transport rollover.Finally,it provides important guidance for the design of special solid rocket launch vehicles.
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