Design and Verification of Separation System of PR-1
For the PR-1 rocket,the structure does not fail at the moment of the first-stage and sec-ond-stage separation,and the second-stage attitude is controllable.Under the condition of zero over-load in the coast stage,there is a no overload separation of the fairing.The third and fourth stages of separation do not produce the need for excess matter due to pyrotechnics.Different from the tradi-tional design,the first and second stage separation applied passive flame and high pressure exhaust mechanism when it performed hot separation.The third stage adopted a non-pyrotechnical separation mechanism.The fairing conducted rotate-separation under zero overload based on energy method.By ground and flight tests,the reliability of PR-1 separation system were verified.
PR-1passive flame and high pressure exhaust mechanism with hot separationnon-py-rotechnical separation mechanismfairing separation under zero overload