Launch Vehicle Solid Bundle

In order to maintain and expand the position of the launch-services market, and in the wake of the world progress, it is import to us that we must improve and consummate the Long-March series, before the Next-Generation lift launch vehicle officially put into use. It is a good resolvent, that we use solid boosters; it can make our launch vehicle more reliably and low cost.According to the "Delta" and "Ariane" rocket development process has revealed to us. By using solid rocket boosters, it can be achieved serialization, portfolio and increase the reliability of launch vehicles and mandate adapt to, lower launch costs for users with good launch service.Through more than 20 years of technology development, China's liquid rocket booster has been made considerable progress, but still a blank in solid booster rocket use. As the technology and the continuing development of solid rocket continuously improve the reliability, cost is also reduced with the use of solid rocket specific safeguard simple, simple coordinated project, the use of features such as better performance, basically meets as a booster rocket conditions.This paper research on the solid booster for launch vehicle based on one model, through the performance parameters, structure layout, separation system and attitude control system design, this paper may discussed the feasibility of solid-booster launch vehicle. The structure and layout design, the solid rocket length due to the limitations imposed by the advantages and disadvantages of different methods of connecting vertical analysis identified more reasonable arrangements for the layout and structure program, a structure is simple in form and easy, and through the center of mass flight, identified the solid booster rocket engine nozzle angle.Performance Analysis, through the adjustment of the number of boosters by ballistic simulation will enable active-duty rocket performance greatly improved, for the new series of rockets have greater carrying capacity coverage. More than through intergovernmental level, the solid boosters and other performance parameters, can further improve the rocket carrying capability to meet the CZ-2E rocket's proficiency level.Booster separation system is the key system, its success or failure will be directly related to the success or failure of the rocket flight, the design of the booster separation system must ensure that all conditions under the boosters can achieve security separation. In this paper, the booster separation, mass of forms, connecting unlocking devices, power devices, such as isolation and separation timing system program an important component analysis, comparison, the design suitable for solid booster separation system program, and in accordance with separation system of quality programs and boosters preliminary booster separation dynamics simulation, verification separation system design is reasonable.In the stability analysis, the paper has chosen a state with four solid boosters, derived its attitude dynamics mathematical model of flexible role in the rocket body on the outside and torque and the corresponding generalized force, write equations of motion. The rocket body posture yaw angle and the engine of digital simulation results to see that the rocket during flight attitude angle larger system anti-interference capability poor, but also have some stability margin.Through the above analysis, the use of the existing mature technology and existing rocket module, tied up by solid technical formation series of carrier rockets. This program is feasible, the coverage of a large carrying capacity, adaptability mandate, suitable for the launch of multi-purpose satellite orbit series of launch vehicles. At the same time, it has been a short development cycle and high reliability advantages because of widely used test flight-proven technology.