Optimizing and designing upper-stage separation spring of lifting-body rocket
Because the upper-stage separation of a lifting-body rocket is difficult under the low-altitude and high-speed flight environments,an upper-stage separation scheme based on the separation spring is proposed.The inte-gration of ADAMS and MATLAB realizes the multi-body dynamics simulation analysis of upper-stage separation.The experimental design method is used to carry out the target simulation and calculation of the upper-stage separation process,with the separation condition deviation and the separation spring deviation considered at the same time,thus ensuring the reliability of the separation scheme.In order to further optimize the separation scheme,an upper-stage separation optimization model is established with the Isight software,and the mass of separation spring is opti-mized with the multi-island genetic algorithm and significantly reduced by 48.87%under the condition that the up-per-stage separation process satisfies all constraints,thereby effectively improving the performance of the lifting-body rocket.
万方数据
维普
