Research on attitude control strategy of single engine failure in the first-stage flight phase of new generation launch vehicle

The successful launching of the new generation launch vehicle is great practical significance to development China Space, and cryogenic liquid engine commonly used in has a certain probability failures, which may affect success or failure rocket launching. In this paper, Bolza problem optimization algorithm based on Radau pseudo-spectral method proposed solve single first-stage flight phase by simulating fault injection taking attitude angle as optimal control quantity. simulation results show that can effectively eliminate influence orbit accuracy, achieve absorption engine, improve tolerance system, further guarantee system reliability.