Injection and recovery integrated trajectory optimization for vertical take-off and vertical landing rocket
To complete the launch task of the vertical take-off and vertical landing(VTVL)reusable rocket which delivers the upper stage to target orbit and makes the first stage return to the launch site vertically.The flight procedures for injection and recovery in different flight stages are designed based on the two-stage direct-to-orbit rocket.Additionally,an integrated optimization parameter model for orbit entry and recovery is established.The optimal value range of parameters is obtained using dichotomy,the successive quadratic programming algorithm is used for further optimization.The optimization results demonstrate that the proposed parameter control model can maximize rocket carrying capacity while ensuring compliance with first-stage recovery constraints.
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